Which planet has a thick atmosphere, which is mainly composed of carbon dioxide? A. Mars B. Mercury C. Earth D. Venus

Answers

Answer 1

Answer: The answer is D.) Venus

Answer 2

Answer: i think is a mars because there is no oxygen any earth but i think is mars

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Question 1 of 152 PointsWhat is another name for a pure substance?Answer here

What is nitrogen state at 20 celcius

Answers

Hi there, I believe that nitrogen turns into a liquid at 20 degrees Celsius. Thererore, the nitrogen state is liquid.

Name at least three types of energy associated with the microwave

Answers

Types of energy associated with microwave:

1. Light Energy
2. Thermal Energy
3. Radiative energy

4. Electric Energy

If that helped, plz Mark my answer as brainliest, thanks, rate, and write comments. Thanks!

1. electrical power, you may know that microwave is a machinecale type of thing and to use something that work with machine you must has to use electrical power to make it work.
2. light power, every microwave has a light inside it it's to make the food hot and healthy.
3. radition power because whenever you use an electricale thing you must have to spend some energy for example when you run you sepnd your energy so the radition power help it to provide energy.
if i do suck with texting so plz don't read i am a ESL student, not so much good in english.
thank you
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What happens to the average kinetic energy of gas particles as the temperature increases?a.) Increases

b.) Decreases

c.) Remains the same

d.) Volume changes

Answers

Temperature is the average kinetic energy so I would say the answer is A.

What are some facts about covalent bonding?I need some information for my chemistry poster please, thank you.

Answers

When two atoms come near each other, sometimes they stick together to make a molecule. One way they can stick together is by covalent bonding.In covalent bonding, the atoms are unstable because their outer rings of electrons aren't filled up. By sharing electrons with other atoms, these atoms can fill up their outer rings and become stable. In water, for instance, the oxygen atom needs two more electrons to be stable, and the hydrogenatoms each need one. When they get together, the oxygen atom shares oneelectron with each of the hydrogen atoms, and the hydrogen atoms eachshare one electron with the oxygen atom.Now that the atoms have become stable, it's pretty hard to knockthem back into being unstable again, so covalent bonds are strong andmolecules that form with covalent (sharing) bonds are strong molecules.Covalent bonding makes very strong connections between the atoms,so it's hard to break these molecules apart. On the other hand,molecules that join with covalent bonds aren't very much attracted toeach other (unlike with ionic bonding), so they move freely around eachother. That means that most molecules that form covalent bonds makeeither liquids or gases, like water and carbon dioxide. The main exception is metals,which hold together using covalent bonding but are still solids. That'swhy metals are so flexible and easy to melt so you can make them intodifferent shapes.

1. a change of matter (substance) from one form to another without a change inchemical properties

Answers

So,

There are two basic types of changes in chemistry: physical changes and chemical changes.

Physical changes do not change the chemical identity of the substance; instead physical changes operate between molecules/atoms/ions/etc. Changes of phase and separation of different substances in a mixture are examples of physical changes. For example, when you change the phase of liquid water to gas, you are operating between the water molecules by breaking the intermolecular attractions. Yet you still have water, H2O. When you separate iron filings from a mixture of sand and iron filings with a magnet, you are, in a way, operating between the atoms of iron. Yet you still have iron and sand.

Chemical changes change the chemical identity of the substance. When you throw salt into water, the salt dissolves and is no longer salt. You get salt water, which is chemically different from water and salt. You have operated inside the salt compound.

Thus, changing matter from one form to another without a change in chemical properties would be a physical change.

How does heavy water behave compared to normal water

Answers

You see, heavy water has much more mass. So it is heavier than the normal water
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Answer:

the phosphate head mixes with water ;the fatty acid tails do not

Explanation:

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