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kiruha [24]
3 years ago
10

What conclusion can be draw about the heat of fusion of water from the heating curve? A) The potential energy of fusion represen

ts a greater change of stored energy. B) Liquid water is stabilized by strong intermolecular forces between the molecules. C) The kinetic energy and the entropy of the water molecules increases through fusion. D) The temperature increase converts potential energy to kinetic energy during fusion.
Chemistry
2 answers:
zysi [14]3 years ago
6 0
The answer would be c.

stellarik [79]3 years ago
5 0

The answer is C! Hope this helps

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Identify which subatomic particles match each of these descriptions. One of the descriptions describes two particles. Make sure
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Explanation:

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the neutrons have no charge they are located in the nucleus of an atom .

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Which describes the composition of carbohydrates?
UkoKoshka [18]

Answer: Carbohydrates (carbo- = “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.

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What is the transition element which despite its strength (rigidity), it is characterized by being ductile, and by its high resi
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Titanium is ductile and has high resistance for heat despite its strength.

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3 years ago
Give the formula for an ionic compound formed from each pair of ions
Vera_Pavlovna [14]

Please, find the complete question in the picture attached.

Answer:

1. Na₂O

2. AlF₃

3. MgO

4. Ca₃P₂

Explanation:

1. Na⁺ and O²⁻

An ionic compound will be formed when two ions of opposite charge attract each other.

The positive ion is called cation and the negative ion is called anion.

Thus, every ionic compound has a cation and an anion electrostatically bonded.

The ions must combine in a proportion that genders a neutral compound: so you must have as many cations as negative charge has one anion and as many anions as positive charge has one cation.

This is, if the cation has charge +x, there will be x anions, and if the anion has charge -y, there will be y cations.

Simbolically:

Cation:A^{+x}\\ \\ Anion:B^{-y}\\ \\ Compound:A_yB_x

As you see, the subscripts for each element in the chemical formula are obtained by the exchage of the charges of the ions.

Then, for Na⁺ and O²⁻, the subscript for Na will be 2 and the subscript for O will be 1; and the formula of the ionic compound formed by this pair ot ions is:

  • Na₂O

2. Al³⁺ and F⁻

  • The subscript of Al will be 1 (because the F ion has charge 1-, and the subscript of F will be 3 (because the Al ion has charge +3).

Thus the ionic compound formed by this pair of ions is:

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3. Mg²⁺ and S²⁻

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That results in the formula: Mg₂S₂

Except for some special compounds, the chemical formula is simplified, dividing by the least common denominator. In this case, that means that the two 2 subscripts are simplified to 1, and the final chemical formula for the ionic compound formed by this pair of ions is:

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4. Ca²⁺ and P³⁻

  • The charge 2+ from Ca will become subscript 2 for P and the charge 3- whill become subscript 3 for Ca.

Hence, the ionic compound formed by these two ions is:

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7 0
2 years ago
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Naily [24]

Answer:

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Explanation:

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Level # 2. Population:

Level # 3. Community:

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Level # 5. Biome:

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