Someone help me please i’ll give brainly

Someone Help Me Please Ill Give Brainly

Answers

Answer 1

Answer:

Ionization

Melting

Vaporization

Explanation:

▶Ioniztion changes the charge of an electron,  this usually happens between a chemical reaction. It takes a small amount of energy. Most of the time energy is absorbed instead of expelled!

▶ Melting changes the shape of the item and takes about 334 Joules/gram of energy.

▶ Vaporization changes the state of matter that the item is in and  requires 2260 Joules/gram.

Brainliest is much appreciated! Hope I helped!


Related Questions

True or False;
aa is faster moving lava than pahoehoe?

Answers

Answer:

It is false :l

Explanation:

Pahoehoe is a smooth and continuous lava crust. Pahoehoe forms when the effusion rate is low and consequently the velocity of lava flow is slow. Pahoehoe lava flow is usually at least 10 times slower than typical aa lava flow.

:/

I SWEAR THIS IS WAY TOO EASY, WHY AM I THAT STUPID, HELP ME AND ILL MARK U BRAINLIEST

Answers

Answer:

i think the first one is gravity and second one is rotation

Explanation:

Which type of bond involves valence electrons constantly moving between atoms, like a sea of electrons?

a. Ionic
b. Covalent
c. Molecular
d. Metallic

Answers

Iconic because he was supposed to come and chill at my crib because I don’t know

How to do this question plz answer me ​

Answers

Answer: Ionic

Explanation: It is a type of chemical bond that generates two oppositely charged ions.

A bottle has a capacity of 1.2 liters. If the density of ether is 0.74 g/mL, what mass of ether can the bottle hold?

Answers

Answer:

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. It is a property that can be used to describe a substance. We calculate as follows:

Volume = 60.0 g ( 1 mL / 0.70 g ) = 85.71 mL

Therefore, the correct answer is option B.

Explanation:

888 grams is a mass of ether that the bottle can hold.

Explanation:

The density of the substance is defined as a mass of substance present in the unit volume of the substance.

[tex]Density=\frac{Mass}{Volume}[/tex]

Given:

A bottle with a capacity of 1.2 Liters.

The density of ether = 0.74 g/mL

To find:

The mass of ether hold by a given bottle.

Solution:

The volume of bottle = V = 1.2 L

[tex]1 L = 1000 mL\\V = 1.2 L=1.2\times 1000 mL= 1200 mL[/tex]

The density of the ether = d = 0.74 g/mL

The mass of ether that bottle can hold = m

Volume of ether required = Volume of bottle = V = 1200 mL

Using the formula of density:

[tex]d=\frac{m}{V}\\0.74 g/mL=\frac{m}{1200 mL}\\m=0.74 g/mL\times 1200 mL= 888 g[/tex]

888 grams is a mass of ether that the bottle can hold.

Learn more about density here:

brainly.com/question/952755?referrer=searchResults

brainly.com/question/14373997?referrer=searchResults

Can be a solid,liquid,or gas A)Metal B)Nonmetal C)Both

Answers

Answer:

I think it's B. Nonmetal

(I'm so sorry if it's wrong)

Hope this Helps!

Answer:

I personally think it's both I'm sorry if this is wrong

i need help on these questions please!!!
the link for the vid will be in the comments

Answers

I don’t see the video but I can still answer number 2! One example is when you boil water it evaporates as it gets hot. Another example is when you take a shower, the water on your body evaporates as you dry!

Difference between bouyancy and density

Answers

Answer:

what She said but better

The second atomic structure YES
No

Answers

Answer

The second part of the theory says all atoms of a given element are identical in mass and properties. The third part says compounds are combinations of two or more different types of atoms. The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.

Explanation:

A photon has an energy of 2.34x10-28 J. What is its frequency?

Answers

Answer:

f = 3.53×10⁵ s⁻¹

Explanation:

Given data:

Energy of photon = 2.34×10⁻²⁸ J

Frequency = ?

Solution:

h = 6.63 ×10⁻³⁴

Formula:

E = hf

2.34×10⁻²⁸ J = 6.63 ×10⁻³⁴ × f

f = 2.34×10⁻²⁸ J /  6.63 ×10⁻³⁴ Js

f = 0.353×10⁶ s⁻¹

f = 3.53×10⁵ s⁻¹

what is the number of moles in 2.43 g Mg

Answers

Moles = mass/Mr
Mass of Mg - 2.43g
Mr of Mg - 24.3

Moles= 2.43/24.3
=0.1mol

What is the concept of Dimensional Analysis?

Answers

Answer:

In engineering and science, dimensional analysis is the analysis of the relationships between different physical quantities by identifying their base quantities (such as length, mass, time, and electric charge) and units of measure (such as miles vs. kilometers, or pounds vs. kilograms) and tracking these dimensions as

Explanation:

An astronaut is working outside a spaceship and realizes that the cord attaching him to the
spaceship has been broken. To move back to the spaceship in the vacuum condition, he
throws a heavy tool to the opposite direction from the spaceship. Which law of motion does
he apply?
Does he apply:
A. Newton’s Second Law of Motion
B. Law of Conservation of Energy
C. Newton’s Third Law of Motion
D. Newton’s First Law of Motion
Need helpASAP

Answers

it would be: B if i’m wrong i’m so sorry

which of the following is an oxyanion?

Answers

Answer:

please give the answer choice.

uses of ethanol as a reagent​

Answers

Reagent in synthetic organic chemistry and chromatography. Industrial and laboratory organic solvent. Other uses are in manufacture of denatured alcohol, pharmaceuticals (rubbing compounds, lotions, tonics, colognes), in perfumery. Octane booster in gasoline.

I need help! Thanks!

Answers

Answer:

C. As speed increases, kinetic energy increase exponentially

Explanation:

As you can see on the graph, the further right we move on the x-axis, the higher the values on the y-axis. This means that as one value increases, the other value also increases. The only answer choice that says this is C.

Hope this helps :)

is C because i did it on the quiz

Is Steel a compound?

Answers

Steel is a mixture of iron and carbon fused together with one or more other metals or nonmetals. Because steel is a mixture rather than a chemical compound, steel does not have a set chemical compound formula.

Answer:

No

Explanation:

Steel is a mixture of iron and carbon fused together with one or more other metals or nonmetals. Because steel is a mixture rather than a chemical compound, steel does not have a set chemical compound formula.

what type of a solid contains particles that are jumbled and form no particular pattern?
a. high-pressure
b. high-viscosity
c. crystaline
d, amorphous

Answers

Amorphous solids have two characteristic properties. When cleaved or broken, they produce fragments with irregular, often curved surfaces; and they have poorly defined patterns when exposed to x-rays because their components are not arranged in a regular array. An amorphous, translucent solid is called a glass

1. Hermione is trying to replicate the Polyjuice Potion that they created in their second year at Hogwarts. The problem is that she doesn’t have the exact ingredients that she needsandshe is trying to substitute imitation bat wings instead of real bat wings. She knows that they are not as strong as the original so she is making three batches in the same cauldrons over the same fire so she can test which amount of imitation bat wing will work. The potion will turn green when the correct amount is added.

Test (independent) Variable: ___________________________________

Result (dependent) Variable: _______________________________________________

Constants: ____________________________________________

Answers

Answer:

A) Test(independent) variable is bat wings.

B) Result (dependent) Variable is the Polyjuice Potion.

C) Cauldrons and fire

Explanation:

A) A test/independent variable is the variable that is being tested in the experiment or research and it is not affected by other variables in the experiment.

Now, in this experiment, what is being tested is are the bat wings.. Thus;

Test(independent) variable is bat wings.

B) Result (dependent) Variable is a variable that depends on the independent variable being tested. From the question, the result is the Polyjuice Potion.

Thus, Result (dependent) Variable is the Polyjuice Potion.

C) The constants are things that don't change with respect to any of the other variables. In this case, they are; cauldrons and fire

Can sedimentation and decantation be used for all types of mixtures? Explain
Is there a relationship between the mass of an object and the rate of settling? Explain.

Answers

Explanation:

1. Sedimentation and decantation cannot be used for all types of mixtures.

Decantation is a separation technique in which is used to separate immiscible liquids or mixtures containing liquid and solids within them.

In decantation, gravity is used to bring the denser materials to settle at the bottom.

For homogenous mixtures, it is not possible to use decantation. A solution of sugar and water will not decant.

2. Yes, mass of an object reduces the settling time of such object in a mixture.

The higher the mass, the faster the rate of settling. Also, as we know, mass is directly proportional to density. A body with a high density will settle faster in solution.

can somebody help with this please ?

Answers

Answer:

B. Molecules of different types of atoms that are not attracted to each other.

Explanation:

On a broad basis, matter can be subdivided into pure or distinct substances and impure substances (mixtures);

Pure substances are distinct substances having the following properties:

All parts are the same throughout Composition is definite They cannot easily be separated or broken down into simpler substances by physical means. Separation by physical methods is not easy. They have a unique set of physical properties.

From this criteria, we see that the second choice is nullified. This is because pure substances have their molecules attracted to each other.

how many moles of sulphur are in 53.7 grams of sulphur​

Answers

Answer:

1.67 mol S

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic TableUsing Dimensional Analysis

Explanation:

Step 1: Define

53.7 g S

Step 2: Define Conversions

Molar Mass of S - 32.07 g/mol

Step 3: Convert

[tex]53.7 \ g \ S(\frac{1 \ mol \ S}{32.07 \ g \ S} )[/tex] = 1.67466 mol S

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

1.67466 mol S ≈ 1.67 mol S

The diagram below shows an oxygen molecule formed when two oxygen atoms bond. Which is likely to be the nature of bonding formed?

Answers

Answer:

Covalent bonding

Explanation:

covalent bonding

Describe a powerful force?

Answers

Answer:

Gravity is a powerful force.

Explanation:

Gravity is one example of a powerful force

What do acids react with in limestone to form giant cave systems?

Answers

Answer:

Giant cave systems have formed through the reaction of acids with carbonates the that make up limestone. Caves are formed as a result of dissolution of limestone, through a type of chemical weathering known as carbonation.

Explanation:

.

Answer:

It's C: Carbonates

Explanation:

Its on ed

Mitochondria are found within: A) All prokaryotic cells B) A cell's plasma membrane C) A cell's nucleus D) Eukaryotic cells E) None of these answers are correct

Answers

Answer:

The correct answer is - D) Eukaryotic cells.

Explanation:

The mitochondrion is found in all eukaryotic organisms with the exception of a few. It is a double-membrane-bound organelle within the cytoplasm of the cell that takes in nutrients, breaks them down, and creates energy that makes it the powerhouse of the cell.

It turns the chemical energy from nutrients in the cell to generate energy in a form usable to the host cell which is ATP. Prokaryotic cells lack mitochondria and other double membrane-bound organelles and it s found outside of the nucleus in the eukaryotic cells.


A 1.5 m block of tungsten has a mass of 28 875 kg.
Write down the equation that links density, mass and volume.

Answers

Explanation:

Density is an intensive property of any matter. Any given pure sample of a substance will have the same density value.

Density is the mass per unit volume of a compound;

  Mathematically;

    D = [tex]\frac{M}{V}[/tex]  

where M is the mass

          V is the volume

          D is the density

How many electrons are transferred in total in this
reaction?
2 NH3 + 2 O2 – N2O + 3 H2O
4 electrons
10 electrons
8 electrons
6 electrons

Answers

Answer:

10.

....................

.......

HELP ME PLEASEEEEEEEEEEEEEEE
(I really dont know the subject i just know science)

Answers

Answer:

B

Explanation:

weight , w= mg  where m is the mass of the object (unit is kg ) and g is the gravitational force acting on the object ( unit is m/s^2 )

hope it helps

Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 215 lb (97.5 kg ) is 8.84×10−3 mol .

What volume of a 0.0250 M KCN solution contains 8.84×10−3 mol of KCN?

Express the volume to three significant figures and include the appropriate units.

Answers

Answer:

0.354L

Explanation:

Given parameters:

Molarity of KCN  = 0.025M

Number of moles  = 8.84 x 10⁻³mol

Unknown:

Volume of KCN  = ?

Solution:

The molarity of a substance is expressed as;

       Molarity  = [tex]\frac{number of moles }{volume }[/tex]  

 Volume of KCN   = [tex]\frac{number of moles }{molarity}[/tex]

Now insert the parameters and solve;

  Volume of KCN  = [tex]\frac{0.00884}{0.025}[/tex]   = 0.354L

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Last year, Lashonda opened an investment account with $7200 . At the end of the year, the amount in the account had decreased by 24.5% .How much is this decrease in dollars? How much money was in her account at the end of last year? PLS I NEED HELP WITH THIS!! Why not come and chat with me," said the Grasshopper, "instead of toiling and moiling in that way?""I am helping to lay up food for the winter," said the Ant, "and recommend you to do the same.""Why bother about winter?" said the Grasshopper; "we have got plenty of food at present."Why did the grasshopper refuse to store food for the winter?Because he wanted to talk with the ant.Because it was advice from the ant.Because he had plenty of food now.Because he did not want to work hard. 5. How many solutions does the equation7x + 3x 8= 2(5x 4) have? Explain. Why does a bowling ball and a feather hit the ground at the same time when they are dropped in a vacuum? ASAP! I need help with A, B, and C If a cell completes the cell cycle, then the resulting cells also complete the cell cycle, how many total cells have been formed?1. 22. 43. 64. 8Please hurry i got 10 min left in class and dont know answer ); List at least two advantages and one disadvantage of being part of a kingdom. Which of the following statements BEST explains the Confederacy'sbiggest strength They had a better economy due to cash crops (i.e. cotton and tobacco)They were fighting for their way of life and all they ever had or knew.They had a friend in other countries, such as France. What is the outcome of meiosis?A. Meiosis creates four identical daughter cells B. Meiosis creates two unique daughter cellsC. Meiosis creates two identical daughter cellsD. Meiosis creates four unique daughter cells 5 times a number increased by 4 is at leastnineteen How does self-selection into lower-paying jobs impact women 6. What is an equation of the line that passesthrough the point (2, 4) and is perpendicular tothe line whose equation is y = 2x + 1? How to simplify this equation? Jim opens a CD with $5000 and earns interest at an apt of 5.25%. How much interest would be earned and what would be the balance if he keeps the money in the account for 2 years? Look at the frame from Iqbal.An announcer says, "The Youth in Action Award for human rights is given to Iqbal Masih!"Read the excerpt from the prologue of Free the Children.Later that year he arrived in Boston to receive the Reebok Youth in Action Award.Holding a pencil in one hand and a carpet tool in the other, Iqbal stood before the audience. And in his small but commanding voice he spoke of the horrors of child labour. The room was intensely silent.Which statement best describes a difference between the frame and the excerpt?Only the excerpt mentions the award Iqbal received in Boston for his work to liberate children.Only the excerpt shows what the podium looked like before Iqbal gave his speech.Only the excerpt tells about the atmosphere in the room after Iqbal received the award.Only the excerpt describes the look on Iqbals face when his name was announced. What is Jensen's alpha of a portfolio comprised of 45 percent portfolio A and 55 percent of portfolio B?PortfolioAverage ReturnStandard DeviationBetaA18.9%21.6%1.92B13.212.81.27The risk-free rate is 3.1 percent and the market risk premium is 6.8 percent.2.04 percent0.47 percent1.08 percent1.46 percent1.25 percent The first excited electronic energy level of the helium atom is 3.13 x 10-18 J above the ground level. Estimate the temperature at which the electronic motion will begin to make a significant contribution to the heat capacity. That is, at what temperature will the ratio of the population of the first excited state to the ground state be 5.0%? Mike has a loan of $36,320. This loan has a simple interest rate of 6% per year. What is theamount of interest that will be charged on this loan at the end of the first year?Help:( Find the minimum, maximum, and average grade of final exams in sections taught by Todd Smythe. If process P0 is switched to process P1, state for P0 will be saved into ____, and state from ___ will be reloaded.