Two different samples of matter are measured in each of these glass containers. Both of the containers show the same measure for both samples of matter. The samples most likely have which of these in common?.

Answer:

They are ionic compounds.

Explanation:

Ionic compounds are made from a metal element and a nonmetal element. Ionic compounds have bonds that are the transfer of their electrons. They consist of a positively charged and negative charged ion.

When ionic compounds are dissolved in water, this means that the bonds from the compound are broken and now they will be bonding with the water molecules in water.

The electricity in the solution happens when these ions are moving around freely in water.

Answer:  Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.

Explaination:

By using Physical properties unknown substance can be identified as it involves determination of a substance with out changing their composition or property include color, odor, taste, density, melting point etc.

What are the difference between physical and chemical property ?

Chemical properties can be observed or measured when a substance undergoes any type of changes chemically while Physical properties can be observed without changing anything.

In chemical property, chemical reaction is conducted to show the property of the substance while in physical property No chemical reaction occur.

Chemical properties related to chemical bonds while Physical properties do not have such a relationship.

Chemical properties include radioactivity, toxicity, flammability, heat of combustion,  etc. while physical properties include Molecular weight, boiling point, melting point, freezing point, volume, mass, length, density shape, solubility, etc.

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The poster and type written paper of water cycle use correct sentence structure, punctuation, grammar, and spelling.

Get the folder link and copy it by creating a new folder and putting all the documents in it. You can then go to the classroom select the link paste the folder link and submit. This is because online Classroom only allows you to upload videos that you own via a link or Drive.

There are two workarounds you can use. Have the original creator upload the video to the platform and share the platform link in your online Classroom assignment. Students can view the document edit the shared document, or edit individual copies of the document to work on the assignment. You can attach documents links, images videos, and add-ons to your work.

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Answer:

NaCl

Explanation:

NaCL is Sodium chloride, commonly known as salt.

In accordance with Hess's law, the total enthalpy of the reaction in question would be -200 kJ.

Hess's law (also known as Hess's law of constant heat summation) states that regardless of the multiple steps or stages of a reaction, the total enthalpy change for the reaction is the sum of all stages. This means that if the reaction has two steps, their individual changes in enthalpy contribute to the total change in enthalpy for the sum reaction. In this case, one step is exothermic (-658 kJ), and the other is endothermic (458 kJ), but the overall reaction is still exothermic (-658 kJ + 458 kJ = -200 kJ) because the absolute value for enthalpy change in the first reaction is greater than the absolute value for enthalpy change in the second reaction.

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Weak acids are Ca(OH)2,KOH.

When the hydrogen atom and the other atom in the link are not sufficiently polar, weak acids can form because the hydrogen ion cannot be removed with ease. The size of the atom linked to hydrogen is another element that influences an acid's potency.

Weak acids can occur when the hydrogen atom and the other atom in the connection are not sufficiently polar because the hydrogen ion cannot be easily withdrawn. Another factor that affects an acid's potency is the size of the atom that is connected to the hydrogen atom.

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Answer:

in the explanation:

Explanation:

Microwaves cannot explode. While they can produce enough heat to explode the object inside, the microwave itself is safe from explosion. They are vulnerable to electrical issues that cause fires, though.

Food in the microwave can explode, but the microwave doesn't. I don't know what you should possibly do, to microwave to explode lol!

In regards to the question, it can be said that 25.7 g of solid methanol must be heated to its melting point to reach a temperature of

Q=2.6kJ

From the query, we learn

Determine the amount of heat needed to completely melt 25.7 g of solid methanol at its melting point.

In general, the mathematical formula for heat is

Q=N*u

Where

Methanol has a mass of 32.04g/mol.

Methanol's molar heat of fusion is 3200 J/mol.

How many moles are in 25.7g?

frac = 25.7g 32.04

n=0.8mol

Hence

at its melting point, 25.7 g of solid methanol needs to be heated to a temperature of

Q=0.8*3.2

Q=2.6kJ

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The frequency of light will create photoelectrons is 1.54 x 10¹⁵ Hz.

The energy of the photon emitted by the light is calculated from the summation of kinetic energy of the photon and work function of the metal.

E = K.E + Ф

where;

E = 1.88 eV + 4.5 eV

E = 6.38 eV

1 eV = 1.6 x 10⁻¹⁹ J

E = 6.38 x 1.6 x 10⁻¹⁹ J

E = 1.021 x 10⁻¹⁸ J

The frequency of the light is calculated as follows;

E = hf

f = E/h

where;

f = (1.021 x 10⁻¹⁸ J) / (6.626 x 10⁻³⁴)

f = 1.54 x 10¹⁵ Hz

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An ionic compound contains only a metal, m, and bromine. if analysis indicates that a 3.66 g sample of the compound contains 2.14 g of m then mass of br in g is contained in 468 g of the mineral is 273.63g

Ionic compound means a chemical compound composed of ions held together by electrostatic forces termed ionic bonding

Here given data is 3.66 g sample and in that 2.14 g of m and 468 g  have to find mass of br = ?

So,  m₁/m₂ = 3.66 g/2.14 g,  w₁/w₂ = 468 g/w₂

Cross multiply this equation then

w₂×3.66 g/2.14 g×468 g

w₂ = 2.14 g×468 g/3.66 g =273.63g

w₂ = 273.63g

Mass of br in g is contained in 468 g of the mineral is  273.63g

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The percentage error in the measurement of the student is 18.18%

We'll begin by obtainig the absolut error. This can b eobtained as follow:

Absolute error = accepted value - measured value

Absolute error = 1.1 - 0.90

Absolute error = 0.2 g/mL

Finally, we shall determine the percentage error. This can be obatined as follow:

Percentage error = (Absolute error / accepted value) × 100

Percentage error = (0.2 / 1.1) × 100

Percentage error = 18.18%

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The above reaction that decomposes hydrogen carbonate to water and carbon dioxide supports the law of conservation of mass because the number of moles of the reactants equates that of the products.

The law of conservation of mass states that the mass of a substance can neither be created nor destroyed.

In a chemical reaction that involves the changing of substances called reactants to other substances called products, the law of conservation of mass explains that the amount of the reactants must be the same as the amount of products.

According to this question, the decomposition reaction of carbon acid into water and carbon dioxide is given as follows: H₂CO₃ → H₂O + CO₂

As observed in the above chemical equation, the amount of each element on both sides of the equation is the same.

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The element calcium forms a cation with the charge +2. The symbol for this ion is [tex]Ca^{+2}[/tex], and the name is calcium ion. The number of electrons in this ion is 18.

Calcium is present in the second column of the periodic table with symbol Ca.

The number of electrons in this element are 20.

The electronic configuration of calcium is [Ne] 3s² 3p⁶[tex]4s^{2}[/tex] which shows that it has only two electron in its outermost shell.

Being an alkaline earth metal, calcium forms ions by the loss of two electron in the outermost shell.

Neutral calcium has 20 electrons, however, after the loss of two valence electrons it becomes a cation i.e. [tex]Ca^{+2}[/tex]

Since its easy for calcium to lose two outermost electron instead of getting 6 more electrons to achieve octet state.

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A total of 1363.63 liters volume of the 5.5% (m/v) glucose solution would be needed to obtain 75 grams of glucose from it.

The amount of glucose required is 75 gram.

The concentration of the solution that is provided to uses 5.5% mass by volume solution.

It means that one litre of the solution will contain 5.5% by mass concentration of glucose and it.

So, using the percentage formula,

Percentage = mass required/volume×100

Now, putting all the values accordingly,

5.5 = 75/V × 100

V is the volume of the solution required,

V = 1363.63 Litres.

So, a total 1363.63 liters of the 5.5% mass by volume glucose solution will be required in this case.

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Solutions A and B have the same amount of solvent, but solution A contains more solute than solution B Solution A has more solute than B.

In a liquid reaction, the amount of solvent present exceeds the amount of solute. One good example of melting into our entertainment is salt and water. Salt is a solute because it dissolves in water. A solute is a substance that dissolves as if the solvent were a solvent medium. Different types and forms of solutes and solvents provide answers. Examples of availability proposals. As each solute molecule binds with various solvent molecules and does not evaporate every day, the vapor pressure decreases.

A solute can be a solid, liquid, or gas. The solute is also not in the same part as the solvent it is in on a daily basis. In carbonated beverages, for example, fuel bubbles (solute) are dispersed in a liquid solvent. Dissolving coffee grounds in hot water produces a coffee solution. In this answer, coffee powder is present in small amounts and hot water is present in large quantities. So in the espresso answer, the solute is espresso powder and the solvent is warm water.

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The organelle in which the line pointing is Golgi apparatus and its function is to package proteins into vesicles which is therefore denoted as option A.

These refer to the structures which are found in cells which perform various types of metabolic functions in the cell and examples include ribosome, golgi apparatus etc.

The golgi apparatus is responsible for the packaging and transporting of biomolecule such as protein, lipids to their final destination for various types of purposes. This ensures adequate distribution of resources to other parts of the cell.

The shape is similar to that of series of stacked flat cisternae which ensures  the adequate storage and transportation thereby making option A the most appropriate choice.

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Given Mass = 23.2 g

Molecular mass = 46 grams per mole

Mole = Given Mass / molecular mass

⇒ Mole = 23.2g / 46 = 0.504 mole

Number of molecules = number of moles x Avogadro's number

⇒ Number of molecules = 0.504 x 6.023 x 10^23

⇒ Number of molecules = 3.035592 x 10^23 = 0.035 x 10^23 (approx.)

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6.07 g of gold chloride is created when 3.94 g of gold is combined with chlorine.

Here are five facts about chlorine:

Chlorine ranks as the third most prevalent element in the planet's water supply. In the Earth's crust, chlorine ranks as the 21st most common element. In the human body, chlorine is the tenth most common element. Chlorine gas has a yellow-green color and an earthy scent.

Chlorine is used to produce chlorides, chlorinated solvents, pesticides, polymers, synthetic rubbers, and refrigerants, among other things.

Gold is made into chloride by mixing it with chlorine.

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The temperatures of the gases will not be equal as oxygen gas will have a higher temperature than hydrogen gas because it has fewer moles overall.

The mechanical behavior of ideal gases is described by the ideal gas law. It has the ability to compute the volume of gases created or absorbed.

This equation is frequently used in chemical equations to convert between volumes and molar quantities.

According to the ideal gas law, there is a relationship between gas pressure, temperature, and volume.

PV = nRT

V is the same for both

So,

T is same for both.

When n increases, T decreases, so since n for hydrogen gas is 1 and n for oxygen gas is 0.5, it follows that oxygen gas will have a higher temperature than hydrogen gas because it has fewer moles overall.

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Wedge bonding is a type of wire bonding that forms bonds by using ultrasonic power and force. It is a well-known approach that is widely employed in the semiconductor industry. A three-dimensional representation of a molecule in which simple lines represent bonds in the image's plane, wedge-shaped lines represent bonds toward the viewer and dashed lines represent bonds away from the viewer. Copper wire with a diameter of 500 micrometers (0.02 in) can be wedge bonded satisfactorily. Large-diameter copper wire can and does replace aluminum wire where high current carrying capacity is required or complex geometry is a concern. Manufacturers' annealing and process steps

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Convection is an autonomous single- or multiphase fluid movement that arises from the interaction of the fluid's body forces, most typically gravity and density, with the heterogeneity of its material properties.

Q=h AΔT

Q = heat transfer rate

h = convection heat-transfer coefficient

A = exposed surface area

ΔT = temperature difference

Convection is the motion of warmer regions of a liquid or gas rising and cooler regions of a liquid or gas sinking, occasionally producing a full cycle. The visibility, especially in the air, is frequently low.

When there are changes in density inside a mass of liquid or gas, the phenomena known as a convection cell occurs in the science of fluid dynamics. The primary characteristics of a convection cell are rising and/or falling currents, which are caused by these density discrepancies.

It is the vertical circulation brought on by variations in density that are ultimately caused by variations in temperature. This process involves heat transfer through the movement of hot fluid, resulting in convection currents.

Slow-moving solids, such as a portion of the Earth's mantle, are also regarded as fluids, despite the fact that the name "fluid" normally refers to a liquid or a gas.

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Based on the information in the table, the most likely empirical formula of the ionic compound that forms between element X and fluorine is X₂O₃ and is denoted as option C.

This is referred to as the minimum energy which is required to remove a loosely bound electron from a gaseous atom etc and it is also measures how capable an element is in entering into a chemical reaction.

From the table given, we can deduce that the element X most likely has three valance electrons. This is because there is a huge difference between the first three ionization energy and the fourth ionization energy.

The three valance electrons in the outermost shell will be lost to create a stable octet structure. The loss of three valance electrons will create a +3 charge.

Compounds have a net electric charge of zero, X has a charge of +3 and Oxygen has a charge of -2.

So n× +3 + m × −2 = 0

The Least Common Multiple of 3 and 3 is 6.

2 × + 3 = + 6 therefore n = 2

3 × − 2 = −6  therefore m = 3

2× + 3 + 3 × − 2 = 0

Therefore the formula is X₂O₃

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Answer:

P 1 T 1 = P 2 T 2

Combined gas law: P1V1/T1 = P2V2/T2 Use the gas laws for pressure, volume and temperature calculations.

I would expect  to happen if the cup of olive oil in question 4a is poured into a container of ethanol from question 3 it will settle to the bottom of the container because olive oil has a higher density than ethanol,

Like a solid, a liquid has a unique characteristic density. A liquid's density serves as a gauge for its weight relative to the volume being evaluated. The liquid that weighs more is denser if two distinct liquids are weighed in quantities that are equivalent.

It will float on the water if a liquid that is less thick than water is carefully added to the surface of the water. If you add something to the water's surface that is denser than water, it will sink.

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C is conduction

a is convention

b is radiation

Answer:

Explanation:

1 - Atomic number is the number of protons in an atom.
2 - Atomic Mass is the total number of protons and neutrons in an atom.
3 - Isotopes are atoms with the same atomic number but different atomic mass number due to the different number of neutrons in the nucleus.
4 - Relative Atomic Mass is the weight in grams  of the atom of an element as it occurs in nature to 1/12th of the mass of the carbon-12 atom
5 - Mass Spectrometry is the technique to determine the mass of particles.

Given that we know that the mass of the compound used for the trials is related to the temperature difference, it is correct to state therefore that " Approximately half the mass of salt produced approximately half the temperature change" (Option A)

An experiment is a technique that is carried out to support or deny a hypothesis, or to test the efficacy or probability of something that has never been done before. Experiments shed light on cause-and-effect relationships by revealing what happens when a specific element is changed.

Typically, the experimental variable is one or more of the sample attribute categories. It summarizes the differences between the test and control samples that you are studying.

The following are various types of experiments:

The totally randomized design is the most common experimental design.

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Full Question:

Ally completed part b of experiment IHT. In their second trial, they used half the mass of salt from their first trial. what trend would they expect to observe in the temperature change with respect to the mass salt they used in their first and second trials?


A) Approximately half the mass of salt produced approximately half the temperature change

B) No trend was observed

C) Approximately half the mass of salt produced approximately double the temperature change

Answer:

7,008,000

Explanation:

1. 7.008 x 10^6

2. Move the decimal point 6 times to the right and then calculate from there