The normal boiling point of Br2(l) is 58.8 ?C, and its molar enthalpy of vaporization is ?Hvap = 29.6kJ/mol.
When Br2(l) boils at its normal boiling point, does its entropy increase or decrease?
increase
decrease

Answers

Answer 1

When Br2(l) boils at its normal boiling point, its entropy increases as it is positive.

What is meant by entropy?

The level of randomness found inside a substance's molecules is known as entropy.

The temperature at which atmospheric pressure and a liquid's vapor pressure are equal is known as the boiling point.

The amount of heat energy required to convert one mole of a substance from its liquid state into its gaseous state at constant temperature and pressure is referred to as the molar enthalpy of vaporization.

Entropy increases when a liquid is heated because the randomness between the molecules increases. As a result, entropy will rise.

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Related Questions

A 35.2-mL, 1.66 M KMnO 4 solution is mixed with 16.7 mL of 0.892 M KMnO 4 solution. Calculate the concentration of the fi nal solution.

Answers

The concentration of the final solution is 1.41[tex]\frac{mol}{L}[/tex].

Now, first calculate the number of moles of first solution:

[tex]M_{1} =\frac{no. of moles of solution}{total volume of solution}[/tex]

no. of moles we have to find

total volume is 0.0352L and molarity of solution is 1.66M

The total number of moles of solute present in a given solution per litre is known as its molarity. In contrast to mass, which varies as the system's physical circumstances vary, the volume of a solution changes as a function of changes in the system's physical qualities, such as pressure and temperature. This has an impact on the molality of the solution. The symbol M, sometimes known as a molar, denotes molarity.

[tex]1.66=\frac{n}{0.0352}[/tex]

on solving we get,

n=0.0584 mol

Now, find the number of moles of second solution by the same formula used to find the moles of first solution,

molarity of second solution is 0.892M and total volume is 0.0167L

Now, put the values in the formula,

[tex]0.892=\frac{m}{0.0167}[/tex]

On solving we get,

m=0.0149 mol

and to find the concentration of new solution number of moles is equal to the sum of moles of first solution and second solution.

x=m+n

x=0.0584+0.0149

x=0.0733 mol

Now, molar concentration is,

[tex]M=\frac{x}{V}[/tex]

[tex]M=\frac{0.0733}{0.352+0.0167}[/tex]

On solving we get,

M=1.41[tex]\frac{mol}{L}[/tex]

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What is the relationship between properties and substances?

Answers

The relationship between properties and substances is an important one as the properties define or describe the type, kind or composition of a substance. There are two factors that affect the properties of a substance and these are kinetic energies and intermolecular forces.

In chemistry, substances are categorized on the basis of physical and chemical properties. All the substances are composed of tiny particles which are in constant motion due to kinetic energy and keep moving in all directions in a substance.

In addition to this, intermolecular forces are also present in a substance which keeps the particles together. In this way substances maintain their shape, arrangement and properties such as melting point, boiling point, hardness, composition and color due to their particular properties.

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How many atoms are in 1.4 moles of Cadmium?

Answers

Answer:

Answer Below

Explanation:

Answer: 8.4322×1024atoms atoms are in 1.4 moles of cadmium. Cadmium is present in some foods and is emitted when fossil fuels like as coal and oil is used, smoking cigarettes.

Answer:

The answer is 8.4308 × 10²³ atoms

Explanation:

Multiply by Avogadro's number (Nₐ)

Nₐ = 6.022 × 10²³ mol⁻¹

Now,

1.4 × 6.022 × 10²³ = 8.4308 × 10²³

Thus, 8.4308 × 10²³ atoms are in 1.4 moles of Cadmium.

why was the bohr model replaced

Answers

To solve this we must be knowing each and every concept related to atom. Therefore, Bohr's model was abandoned since it lacked explanatory, descriptive, and predictive ability.

What is atom?

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. Bohr's model was abandoned in favor of the quantum mechanical model since it lacked explanatory, descriptive, and predictive ability.

Therefore, Bohr's model was abandoned since it lacked explanatory, descriptive, and predictive ability.

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[sulfate ion] in a1.15 M potassium sulfate

Answers

The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, the concentration of sulfate ion is 1.15 M.

What is molarity?

Molarity can be calculated by dividing number of moles of solute by volume of solution in litre. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.

K₂SO₄[tex]\rightarrow[/tex]2K⁺ + SO₄²⁻

concentration of potassium sulfate=concentration of potassium ion=concentration of sulfate ion

1.15 M =concentration of potassium ion=concentration of sulfate ion

Therefore, the concentration of sulfate ion is 1.15 M.

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You have a 400-mL container containing 55. 0% He and 45. 0% Ar by ma at 25°C and 1. 5 atm total preure. You heat the container to 100°C Calculate the ratio of PHe : PAr

Answers

The ratio of the container with PHe: PAr will be given as= 12.2/1

All pressures present in a reference system are added together to get the total pressure, or ptot. Bernoulli (see Fluid mechanics) defined this pressure as the sum of the static pressure (p), dynamic pressure (pdyn), and geodetic component (g, z) that exist in a fluid along a stream line in a frictionless flow.The pascal (Pa), often known as kilograms per square meter per second (kg/m1s2), is the SI unit for pressure. Prior to 1971, pressure in SI was only expressed in terms of newtons per square meter; this nomenclature for the unit was added at that time. While a fluid is stationary or when you are moving with it, you have static pressure. You would feel an equal amount of air pressure from all sides

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The ratio of PHe: PAr will be given as= 12.2/1

 

All pressures present in a reference system are added together to get the total pressure, or ptot. Bernoulli (see Fluid mechanics) defined this pressure as the sum of the static pressure (p), geodetic component (g, z) and dynamic pressure (pdyn), that exist in a fluid along with a stream line in a frictionless flow. The pascal (Pa), often known as kilograms per square meter per second (kg/m1s2), is the SI unit of pressure. Before 1971, pressure in SI was expressed in terms of newtons per square meter. You have static pressure, while a fluid is stationary or when you are moving with it. You would feel an equal amount of air pressure from all the sides.

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How do we measure energy of a reaction?

Answers

Answer:

joules.

Explanation:

A measure of the total internal heat content.

which could be exothermic or endothermic

A 1. 0108 g sample of an unknown nonelectrolyte is dissolved in 10. 0090 g of benzophenone and produces a solution that freezes at 35. 8 C. If the pure benzophenone melted at 48. 1 C, what is the molecular weight of the unknown compound?

Answers

The molecular weight of the unknown compound is 80.864g.

Give a definition of freezing point depression.

Only the solute's concentration affects freezing point depression; the solute's mass or chemical composition have no bearing. When it's cold outside, salt is often used to prevent ice from forming on roads by lowering the freezing point of water.

Depression in freezing point is Kb x m

T(f) - T  = Kb x  m

48.1 - 35.8 =  9.8 x m

m = 1.255

m = moles of solute x 1000/mass of solvent

moles of solute x 1000 / 10.0090  = 1.255

moles of solute = 0.0125

moles = mass / molar mass

1.0108  / molar mass  = 0.0125

molar mass =  1.0108 / 0.0125

molar mass = 80.864

so the molecular weight is 80.864g.

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what are the two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances?

Answers

The two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances are mass (usually measured in grams) and volume (usually measured in liters).

Developing Unit Factors for Mass and Volume in Chemical Substances

Unit factors are developed to convert between two different units of measurement, in this case, mass and volume. We can do this by multiplying the given value by the appropriate unit factor to convert the given value from one unit to the other. For example, if we are given a mass of 10 grams, we can convert this to liters using the unit factor 1 gram = 1 liter. Thus, 10 grams = 10 liters.

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Hydrochloric acid (HCl) is combined with cesium hydroxide (CsOH) in a neutralization reaction. Which ions will combine to form a salt

Answers

The ions will combine to form a salt are Cl- and Cs+ when Hydrochloric acid (HCl) is combined with cesium hydroxide (CsOH) in a neutralization reaction.

HCl + CsOH --> CsCl + H2O

Cesium chloride is the salt that results from the neutralization of hydrochloric acid with cesium hydroxide. Because both of the bonds in salt compounds the positively charged cesium ion and the negatively charged chloride ion have electrical charges, they are referred to as ionic bonds. A neutralization reaction occurs when an acid and a base combine to form salt and water in an aqueous solution. A salt is the name for the aqueous cesium chloride that is created during the process.

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What is the smallest measurement you can make on the meter stick using the metric scale?

Answers

The smallest measurement you can make on the meter stick using the metric scale is the millimeter.

The millimeter is the smallest measurement on the meter stick . The millimeter is the smallest reading in the meter stick. we use the meter stick to simply measure the length. The meter reading is calibrated in the centimeters in the meter scale. the least count in the meter scale is the millimeters. we can measure the things as the length of the table or the width.

Thus, the smallest measurement in the meter stick using the meter scale is the millimeters. the symbol of the millimeters is mm.

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What is the expected major organic product from treatment of 4-methyl-2-pentyne with sodium metal in liquid ammonia

Answers

4-methyl-2-pentene s the expected major organic product from treatment of 4-methyl-2-pentyne with sodium metal in liquid ammonia.

The process includes hydrogenation of an alkyne to an alkene in liquid ammonia using sodium metal. This is a particular reaction that leads in the creation of trans alkene.  Alkynes are hydrocarbons with triple carbon-carbon bonds. For molecules with a single triple bond, their typical formula is CnH2n-2 (and no rings).

A number of the same reactions occur in alkynes as in alkenes, but they can react twice due to the existence of two p-bonds inside the triple bond. When sodium dissolves into liquid ammonia (boiling point -33 °C), it turns a vivid blue. When there are alkynes present, they have reduced to a trans (i.e. E) alkene.

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How many moles is 20 grams?

Answers

0.5 moles are present in 20 grams of calcium.

The mole, which is denoted by the symbol "mol," is the volume of a system that includes as many elementary particles as there are atoms in 0.012 kilograms of carbon 12.

The number of atoms, molecules, or ions that make up one mole of a substance is 6.022 × 10²³ . The term "Avogadro's number" or "Avogadro's constant" refers to the number 6.022 × 10²³

Atomic Mass of Calcium = 40u

(Atomic Mass is same as Molar Mass, so)

Molar Mass of Calcium = 40g

Formula to find number of moles

Number of Moles = given mass / molar mass

                                = 20 / 40   = 0.5 moles

Therefore, 0.5 moles are present in 20 grams of calcium.

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The complete question is

How many moles are there in 20 g of calcium

The world’s record for the largest cup of coffee was broken on October 152010, with a 2010 gallon cup of coffee in Las VegasNevada. If a cup of coffee contains 237 mL of coffeehow many cups of coffee would be required to fill this enormous coffee cup?

Answers

The number of coffee cups that would be required to fill the enormous coffee cup would be 32 cups.

Dimensional analysis

The world's largest cup of coffee can hold 2010 gallons of coffee as recorded in Las Vegas.

A normal coffee cup will only hold as much as 237 mL of coffee. Recall that:

1 gallon = 3.78541 L

If 1 gallon = 3.78541 L

  2010 gallons = 2010 x 3.78541

                         = 7608.6741 L

In other words, the coffee cup with the record size will hold a maximum of 7608.6741 L of coffee while a normal coffee cup will only hold 237 mL. The problem now is the number of number coffee cups that will fill the world's record largest coffee.

7608.6741/237 = 32.10

Therefore, the number of normal coffee cups that would be required to fill the enormous coffee cup would be approximately 32 cups.

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A sample of gas occupies 6.00 L at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K, the volume of the gas sample would be:

Answers

The Ideal Gas Law states that the volume of a gas is proportional to its temperature at constant pressure.

What is pressure?

Pressure is a force that is applied to an object over an area. It is measured in units of force per unit area, such as Pascals (Pa). Pressure can be applied in a number of ways, such as by squeezing, pushing, or compressing. It can also be caused by the weight of an object, or the force of gravity. Pressure can be used to do work, such as moving an object or creating heat.

This means that if we double the temperature, we will double the volume. Therefore, if the temperature of the gas sample is raised from 200 K to 600 K, the volume of the gas sample will increase from 6.00 L to 12.00 L.

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What is the total reduction potential of a cell in which sodium (Na) is reduced and zinc (Zn) is oxidized

Answers

The total reduction potential of a cell in which sodium (Na) is reduced and zinc (Zn) is oxidized -1.95 V.

The tendency of a chemical species is to be reduced, expressed in volts under normal conditions, is known as the standard reduction potential.

The standard reduction potential belongs to the group of potentials known as standard electrodes or standard cells. The difference in voltage between the cathode and anode is known as the standard cell potential. The standard sodium reduction potential is -2.71V. Zinc has an average reduction potential of -0.76 V. Therefore, the overall reduction potential is 1.95 V.

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Select the proper IUPAC name for the following compound, including the (R) or (S) designation where appropriate. (2R, 3S)-2.3-difluorohexane (2S, 3R)-2, 3-difluorohexane (2R, 3R)-2, 3-difluorohexane (2S, 3S)-2, 3-difluorohexane

Answers

The proper IUPAC name for the compound is (2R,3S)-2,3-difluorohexane.

It is determined by following the IUPAC nomenclature rules for organic compounds. The key points for this are:

Parent Chain: The parent chain is a hexane, which is a six-carbon chain.Position of Substituents: A first substituent is a fluoro group that is on the second carbon of the parent chain, and a second substituent is a fluoro group that is on the third carbon of the parent chain. We use the prefix di- to indicate that there are two substituents.Absolute Configuration: The compound is a chiral compound, meaning that it has non-superimposable mirror images. To indicate the absolute configuration, we assign the priority of the substituents based on the atomic number of the atom directly bonded to the carbon atom of the substituent. The prefix (2R,3S) indicates that the substituent on the second carbon is in the R configuration and the substituent on the third carbon is in the S configuration.Final IUPAC Name: The proper IUPAC name of the compound is (2R,3S)-2,3-difluorohexane.

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Benzene (C6H6) burns in air to produce carbon dioxide and liquid water. How much heat is released per mole of benzene combusted? The standard enthalpy of formation of benzene is 49.04 kJ/mol

Answers

Benzene (C6H6) burns in air to produce carbon dioxide and liquid water.The heat released in KJ per gram of the compound reacted with oxygen is -41.83 KJ.

What is heat ?

Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object. Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred.

The movement of minuscule atoms, molecules, or ions in solids, liquids, and gases produces heat energy. From one thing to another, heat energy can be exchanged. Heat is the flow or transfer that occurs as a result of the temperature differential between two objects.

Reaction as follows;

2C6H6 + 15O2 → 12CO2 + 6H2O

2x49.04   2x10       12x-393.5  6x-285.8

= [ 12(-393.5 )+6(-285.8) ] - [ 2(49.04)+(2x10) ]

= - 6936.8 - 98

= - 6534.8 KJ/mole

Per gram of benzene

= ( -6534.8 KJ / 2 mole of C6H6) (1 mole of C6H6 / 78.108g )

= -41.83 KJ / mole

Thus, The heat released in KJ per gram of the compound reacted with oxygen is -41.83 KJ.

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How does Angelica Hernandez work help others

Answers

Answer:Angelica currently works on energy efficiency programs for Nexant, Inc, an Arizona-based company focused on clean energy solutions.

Explanation:

How many atoms are indicated by the prefixes for each of the following items. drag each item to the appropriate bin
tetrisdide montui donde bro utracondo chloride triponthou Decode 1 atom 2 atoms 3 atoms 4 stoms 5 atoms 6 atoms

Answers

The prefixes you provided do not correspond to any known chemical element or compound. The prefixes used in chemistry typically come from Greek or Latin and indicate the number of atoms present in a molecule of a certain element or compound.

For example, "mono-" indicates 1 atom, "di-" indicates 2 atoms, "tri-" indicates 3 atoms, "tetra-" indicates 4 atoms, and so on. prefixes let me know if you have any other question

Mono - 1 - montui, chloride

di - 2 atoms - donde

tri - 3 atoms - triponthou

tetra - 4 atoms - tetrisdide

utra - 5 atoms - utracondo are prefixes .

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A 211-mL sample of a 0.285 M CaCl2 solution is left on a hot plate overnight; the following morning, the solution is 1.25 M. What volume of water evaporated from the 0.285 M CaCl2 solution

Answers

When a 211-mL sample of a 0.285 M CaCl₂ solution is left on a hot plate overnight and the following morning, the solution is 1.25 M, the volume of water evaporated from the 0.285 M CaCl₂ solution is 48.108 ml.

Molarity (M) is defined as the ratio of the number of moles of solute present in a solution to the volume of the solution in litres.

given here,

Molarity of the original solution(M₁) = 0.285M

Volume of the original solution(V₁) = 211 ml

Molarity of  the solution in the morning (M₂) = 1.25 M

Volume of the solution in the morning (V₂) = ?

We will calculate the volume of the solution in the morning by using the formula:

M₁ × V₁ = M₂ × V₂

⇒0.285 M× 211 ml = 1.25 M × V₂

⇒V₂ = 0.285 M× 211 ml / 1.25 M

⇒V₂= 48.108ml

The volume of water evaporated from the 0.285M CaCl₂ solution is 48.108 ml.

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Why do the electrons stay in between the nuclei of the two hydrogen atoms chemthink

Answers

Electrons stay in between the nuclei of the two hydrogen atoms because they are attracted to the positive charge of the nuclei.

Electrons are negatively charged species, so they are attracted towards the positive charge of a nucleus.

In hydrogen atom, when both the two hydrogen atoms get close to each other then the electrons of each atom will get attracted to both the nuclei. And if both the hydrogen atoms come close to each other they will repel each other.

The energy of the two hydrogen atoms becomes less when  they are together than when they are far apart.

Thus, the electrons tend to stay in between the nuclei of the two hydrogen atoms.

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What volume of a 0.120 M CaI2 solution would contain 0.078 mol of the solute? A. 35.0 mL O B. 65.0 mL O C. 350 mL O D. 650 mL

Answers

650 mL,In order to obtain the volume of solution necessary to provide a given amount of solute in moles, one needs to take the number of moles and divide by the solution concentration in molarity.

Molar concentration, also known as molarity, quantity concentration, or substance concentration, is a unit used to describe the amount of a substance in a solution expressed as a percentage of its volume. The number of moles per liter, denoted by the unit sign mol/L or mol/dm in SI units, is the most often used unit denoting molarity in chemistry. One mol/L of a solution's concentration is referred to as one molar, or 1 M.

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A cup of water contains 8.37 x 10^24 molecules of water. How many moles of water are in the cup?

Answers

There would be 13.9 moles of the water.

What is the number of molecules?

We know that we could be able to use the Avogadro's number so as to determine the number of the molecules. this would stem from the postulation that one  mole of the substances would in it about 6.02 * 10^23 molecules of the water.

We would now be able to say based on the information that have been passed above in the question;

1 mole of water would contain 6.02 * 10^23 molecules of the water

x moles of water would contain 8.37 x 10^24 molecules

x = 8.37 x 10^24 molecules * 1/6.02 * 10^23

x = 13.9 moles

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Orange juice has a pH of 4. What is its relative acidity compared to pure water, which has a pH of 7

Answers

The relative acidity of orange juice compared to pure water is 1000times. The relationship between acid strength and pH is inverse.

A scale that historically denoted "potential of hydrogen" was used to describe how basic or acidic an aqueous solution was. The pH values of acidic solutions are typically lower than those of basic or alkaline solutions. The pH scale can be used to gauge how strong an acid is. Higher pH values result in weaker acids, while lower pH values result in stronger acids. Therefore, we may conclude that the relationship between acid strength and pH is inverse.

Given the pH of orange juice = 4

Then concentration of orange juice (M1) = 10^-4M

pH of pure water = 7

The concentration of [H+] in water (M2) = 10^-7M

The relative pH = 10^-4/10^-7 = 10^3

Hence  its relative acidity compared to pure water is 1000 times.

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Which of the following geometries for the complex ion [Co(en)(H2O)4]2+ are possible?
Check all that apply
O trigonal bipyramidal or square pyramidal
O octahedral
O linear
O tetrahedral or square planar
O trigonal planar

Answers

Geometry for the complex ion [Co(en)(H2O)4]2+ that are possible is : Octahedral.

What is octahedral molecular geometry?

A compound with six atoms or groups of atoms or ligands grouped symmetrically around a central atom and defining the vertices of the octahedron represents the shape of an octahedron in chemistry and is known as an octahedral molecular geometry (also known as a square bipyramid).

The prefix is octa because the octahedron has eight faces. Octahedral bond angle values between 90° and 180° are what determine the octahedral shape. The angles between each of the four atoms that make up the square bases of the two pyramids of the octahedral structure and one of the apex atoms are both 90 degrees.

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1. Assertion:Amobea is unicellular organism and has no organs for
breathing.
R: Respiration of amobea is by diffusion.

Answers

Answer:

Amoeba has no special respiratory organs and no respiratory pigments but there is a free exchange of gases by diffusion through the general body surface which is permeable to the gases dissolved in water

7. Convert 25.0 grams of KMnO4 to moles.

K-39.098
Mn- 54.938
0-15.999

Answer in THREE Sig Figs with Units

Answers

Hi your answer is

25.0 grams x 1 mole/158.04 = 0.158 moles KMnO4

Time Remaining 4 hours 45 minutes 24 seconds04:45:24 Check my workCheck My Work button is now disabledItem 15 Time Remaining 4 hours 45 minutes 24 seconds04:45:24 Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes

Answers

After 4 minutes, 400 g of the sample would have decayed to 400 g -  (200 g x 4) = 396.2 g.

What is protactinium?

Protactinium (symbol Pa) is a rare, radioactive, metallic element in the actinide series of the periodic table. It has an atomic number of 91 and an atomic mass of 231. It is found in trace amounts in nature, but can be artificially produced in a nuclear reactor. Protactinium is a soft, silvery-gray metal that is soluble in acids and insoluble in bases. It has a high melting point and is moderately toxic. It has a variety of uses, including as a fuel source in nuclear reactors and in medical research.

After 4 minutes, 400 g of protactinium-234 would have decayed to approximately 396.2 g.
This is because the half-life of protactinium-234 is 1 minute, meaning that in one minute, half of the original amount (200 g) of the sample will decay.

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If a sample of pure hydrogen gas is ignited very carefully, the hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Write the unbalanced chemical equation for this reaction.

Answers

H₂ (g) + O₂ (g) ⇒ H₂O (g) because Hydrogen and oxygen gas both exist as diatomic molecules. The water is in gaseous state due to the heat given off by the combustion reaction.

What is combustion reaction?

Combustion, often known as burning, is a high-temperature exothermic redox chemical reaction that occurs between a fuel and an oxidant, typically atmospheric oxygen, to generate oxidized, generally gaseous products in a mixture known as smoke. A combustion reaction is a type of chemical reaction that occurs when any combustible component reacts with an oxidiser to generate an oxidised product. Fires and the release of energy in the form of heat are frequently associated with combustion processes. A hydrocarbon generally combines with oxygen in most combustion processes to produce carbon dioxide and water.

Here,

Because hydrogen and oxygen gas exist as diatomic molecules, H2 (g) + O2 (g) = H2O (g). Because of the heat produced by the combustion reaction, the water is in a gaseous condition.

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In a football game, a 140 kg linebacker runs at a speed of 4 m/s while a 70kg safety runs at 8m/s. It is correct to say Read the scenario below and answer the question that follows. Mr. Willis separates his students into four teams that each represent four different perspectives on a social issue. Each group is to establish an argument supporting why their perspective is correct and then present the information to the class. After each group presents their perspective, Mr. Willis guides the class through a period of analyzing and questioning each perspective. Which of the following types of collaborative learning approaches has Mr. Willis utilized what should you in case you know well the subject discussed Why is it that some materials made up of entirely nonmetal atoms are soluble in water while some are not An interactionist perspective a. focuses on family decision-making. b. focuses on how people use symbols when interacting. c. focuses on the forces in society that promote competition and change. Given f(x) = -3x + 1, solve for a when (x) = 5. If a party against whom enforcement of an oral contract is sought admits under oath that a contract for sale was made, the contract will be enforceableTrueFalse Warm air rises because:A.) It is made of heliumB.) As it warms the particles spread out making it less denseC.) As it warms the particles get closer together making it more dense D.) Air always moves towards the sun or moon due to gravity What are the 3 common types of poetry? 3. How many groups 1/2 of days are in 1 week?groups If 25.0 mL of 15M nitric acid is diluted to 125 mL, what is the concentration of the new solution? Edet took sixth at the end of term test and each test was marked out of 80. If his marks were 48, 52, 46, 46, 44 and 52. What percentage of the total marks did he get? 100 POINTS Read the excerpt from Romeo and Juliet by William Shakespeare.Good night, good night! Parting is such sweet sorrowThat I shall say good night till it be morrow.Using your knowledge of figurative language, the bold-faced section is an example of which technique? Allusion Meiosis Oxymoron Paradox Which of these ratios are equivalent? Choose all that apply.1) 16:42) 2:13) 32:24) 480:1205) 4:166) 4:1 Your essay will be about one of the important events in America between 1800-1825 you just read about. Your essay should Be 4-5 paragraphs in length.Explain multiple causes of the event, why the event is important, and the impacts it had on the nation. Where is the exclusion zone located? The price of a notebook has risen to $3.80 today. Yesterday's price was $3.30 . Find the percentage increase. Round your answer to the nearest tenth of a percent. What physical process is important for breathing? The length of an object in feet is equal to 3 times it's length in yards. The length of the boat is 36 feet. Write and solve a multiplication equation to find the length of the boat in yards What was the purpose of the Gothic revival?