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Elena L [17]
3 years ago
14

The pass change in which a substance change from solid to a liquid is

Chemistry
1 answer:
Flura [38]3 years ago
5 0

Answer:

When a substance goes from one state of matter — solid, liquid, or gas — to another state of matter, the process is a change of state.

Explanation:

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The rocket is now too heavy to reach its destination.

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You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plan
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Explanation:

IV: salt solution

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Control: the fourth plant

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(05.02 LC)<br><br> How many moles of each element are in one mole of Sr(HCO3)2? (3 points)
Nina [5.8K]

Answer:

The number of moles of Sr in one mole of Sr(HCO₃)₂ = 1 mole

The number of moles of H in one mole of Sr(HCO₃)₂ = 2 moles

The number of moles of C in one mole of Sr(HCO₃)₂ = 2 moles

The number of moles of O in one mole of Sr(HCO₃)₂ = 6 moles

Explanation:

The given chemical formula of the compound is Sr(HCO₃)₂

The number of atoms of Sr in the compound = 1

The number of atoms of H in the compound = 2

The number of atoms of C in the compound = 2

The number of atoms of O in the compound = 6

The number of atoms of each element present in each formula unit of Sr(HCO₃)₂ is proportional to the number of moles of each atom in one mole of Sr(HCO₃)₂

Therefore;

The number of moles of Sr in one mole of Sr(HCO₃)₂ = 1 mole

The number of moles of H in one mole of Sr(HCO₃)₂ = 2 moles

The number of moles of C in one mole of Sr(HCO₃)₂ = 2 moles

The number of moles of O in one mole of Sr(HCO₃)₂ = 6 moles.

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3 years ago
Which of the following represents a phase change? A. Melting B. Crushing C. Expanding D. Burning
Fantom [35]
Melting is an example of phase change
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4 years ago
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