Which explanation best compares the movement of particles in three states of matter?

Answers

Answer 1

Answer: The three states of matter are solid, liquid and gas phase. The solid has a more definite shape and volume. The particles are locked into place. It cannot be further compressed due to the bond that exists between the molecules. The kinetic energy of the molecules is close to none because the molecules are so close and so compact with each other. For liquids, it has a medium shape and volume. The particles can move or slide past each other due to the small space available for movement. It cannot be compressed further due to the repulsive forces that acts between them. The kinetic energy is medium. For gases, it has no shape and volume because the particles can move freely from one other. Their collisions are rare due to the distance between them. The kinetic energy of the molecules is high because there is room for movement. It can be compressed easily.

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What is the Mr of Pb(C2H3O2)4

Answers

Answer:

Element Symbol Atomic Mass # of Atoms Mass Percent

Lead Pb 207.2 1 46.732%

Explanation:

What type of change goes on inside when a glow stick is activated?Chemical
Physical
Both

Answers

Answer:

Chemical

Explanation:

chemical that’s your answer boy

Select the THREE answers that are correct concerning a saturated solution of PbCl2. PbCl2(s) Pb+2(aq) + 2Cl-(aq)

Answers

Answer:

a b d

Explanation:

Is Jesus Christ real??

Answers

I don't understand how this is a chemistry Question but if you ask me I will tell you yes he is and that he died for us so that we can be saved from ourselves

yes i think he is real but it is what you think

Which description explains the role of activation energy in a chemical reaction? A .It provides useful energy that is released in an exothermic reaction.
B. It stops the products from being formed from the intermediate state.
C. It slows down the overall chemical reaction so it does not happen too quickly.
D. It provides reactants with sufficient energy for bonds to break and reform.

Answers

Answer: The description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.

Explanation:

Activation energy is defined as the minimum amount of required energy so that a chemical reaction can initiate.

As a result, it provides the reactants with certain amount of energy so that they will get the necessary amount of energy to break their bond and then form new bonds.

Thus, we can conclude that the description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.

D. Activation energy is the energy that is required in order for a reaction to occur, i.e. break and form new bonds

How many identical double strands of DNA will be present after three rounds of replication?four
six
eight
nine

Answers

Answer:

eight

Explanation:

In the first stage of DNA replication each DNA molecule replicates into two daughter DNA. In the second stage of DNA replication each of the two daughter DNA molecule replicates into two daughter DNA, thus forming a total of four DNA molecules. In the third stage of DNA replication each of the four daughter DNA molecule replicates into two daughter DNA, thus forming a total of eight DNA molecules.

Every time you replicate DNA you get 2 new DNA and 1 strand of each DNA is composed of the parent strand. So after 3 rounds of replication....
1 --> 2 ---> 4 ---> 8
Out of these 8, 2 of them contain the parent strands. So 2/8 = 1/4 = 25%

Thus the answer is the third option, eight (8).

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