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Kipish [7]
2 years ago
12

A physical change :_______

Chemistry
2 answers:
sattari [20]2 years ago
8 0
A) occurs when water is evaporated.
aev [14]2 years ago
8 0
Definitely A, a physical change occurs when water is evaporated.
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For the following hypothetical reaction: 3A + 3B —> 2C. How many moles of B will you need to convert 4 moles of A into as man
galben [10]

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Explanation:

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What properties applies to solids but not to liquids or gases?
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4 0
3 years ago
If you have a gold chain that weighs 80.7 grams, what is the volume of the chain?​
just olya [345]

The volume of the gold chain is 4.18 cm³

<h3>What is density? </h3>

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

With the above formula, we can determine the volume of the chain. Details below:

<h3>How to determine the volume of the gold chain</h3>

The following data were obtained from the question:

  • Mass of gold = 80.7 g
  • Density of gold = 19.3 g/cm³
  • Volume of gold chain =?

Density = mass /volume

Cross multiply

Density × volume = mass

Divide both sides by density

Volume = mass / density

Volume of gold chain = 80.7 / 19.3

Volume of gold chain = 4.18 cm³

Learn more about density:

brainly.com/question/952755

#SPJ1

7 0
2 years ago
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