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Gennadij [26K]
3 years ago
5

Changes in ________ move matter from one state to another.

Chemistry
2 answers:
kipiarov [429]3 years ago
7 0
Temperature. Water is an example. When water is at room temp. its liquid. When water is at boiling temp. It is a gas. And when water is at freezing temp. Its a solid.
Keith_Richards [23]3 years ago
5 0

Answer: Option (A) is the correct answer.

Explanation:

Change in state of a substance or matter is affected by changes in kinetic energy of atoms of the matter.

More is the kinetic energy within the atoms of a matter, more easily it is able to change its state.

Also, it is known that

                      K.E \propto \frac{3}{2}kT

This relation shows that kinetic energy is directly proportional to temperature of a substance.

Hence, we can conclude that changes in temperature move matter from one state to another.

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State one type of additional information that could be used to determine if these three species are closely related.
Luda [366]

Answer:

Study the bone structure of limbs.

Explanation:

Study the bone structure of limbs can be used to find out the relatedness and relationship among three species because the pattern of bones structure is similar but the structure is different from one another due to different environmental conditions. This study provides important and useful information whether the three species are closely related or not. If they have similar bone structure than we can say that there are more chances that they are closely related to each other.

5 0
3 years ago
58. Explain why each successive ionization of an electron
ale4655 [162]

Answer:

It's because removal of electron from an atom, reduces the size of an atom.

Explanation:

When an electron is removed from an atom, it becomes an ion and in this case it will become a postive ion.

When an electron is removed from an atom, the charge balance of an atom is disturbed and positive charge increases in comparison to the negative charge. This results in increase nuclear (positive) charge which exerts greater attraction on the remaining electrons and as a result the remaining electrons are more strongly attracted by the nucleus and in this way the atomic size is decreased. Due to this increased nuclear attraction and reduced atomic size, it bcomes difficult to remove more electeon from the positively charged ion of reduced size. This is the reason that each successive ionization of electron requires a greater amount of energy.

The ionization energy has inverse relation with the size or radius of an atom. This also justifies the reason that why each successive ionization of an electron requires greater amount of energy.

6 0
3 years ago
A coin floats on the top of a glass of water. Explain why the coin is able to float on top of the water in this glass.
Goshia [24]

Answer:

The surface tension of the water

Explanation:

The surface of the water curves down twords the edge of the coin.

4 0
3 years ago
Read 2 more answers
A. O CN<br> B. O NH4+<br> C. O s2-<br> D. O Cro 2-<br> Which of the following is an oxyanion?
ANEK [815]
C i think i got this off of usa test prep in class
5 0
3 years ago
Screenshot very easy
Zolol [24]

1. option B

2. ground state Fe :  [Ar] 4s² 3d⁶

<h3>Further explanation</h3>

Aufbau rule

<em>Electrons occupy orbitals of the lowest energy level</em>

Charging electrons in the sub-shell uses the following sequence:  

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.  

So the correct choice of answer is B.

Ground state is the state of electrons filling skins with the lowest energy levels.

Excited state is the state of electrons which occupy a higher energy level

The atomic number of Fe = 26, so electrons=26

Ground state configuration of Fe : [Ar] 4s² 3d⁶ or

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d⁶

4 0
2 years ago
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