1 year ago

What would most likely happen when a metal is heated?

1 answer:

3 0

It will melt

This is because the molecules in the metal begin to move faster and faster turning from solid to liquid

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When two atoms of Hydrogen combine together, or fuse, they make an atom of Helium.

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nata0808 [166]

Answer: The percent composition of hydrogen in the sample is 15.22 %

Explanation:

We are given:

Mass of hydrogen = 7 grams

Mass of nitrogen = 32 grams

Mass of carbon = 7 grams

Total mass of the sample = 7 + 32 + 7 = 46 grams

To calculate the percentage composition of hydrogen in sample, we use the equation:

$\%\text{ composition of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of sample}}\times 100$

Mass of sample = 46 g

Mass of hydrogen = 7 g

Putting values in above equation, we get:

$\%\text{ composition of hydrogen}=\frac{7g}{46g}\times 100=15.22\%$

Hence, the percent composition of hydrogen in the sample is 15.22 %

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