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1 year ago

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Chemistry

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evablogger [386]1 year ago

4 0

If 28.4 g of HgO decomposes and produces 2.0 g of oxygen, then 26 grams of Hg is produced.

<h3>What is decomposition reaction?</h3>

Decomposition reactions occur when complex chemical entities split apart into smaller components. Decomposition reactions often demand energy input.

There are three different kinds of breakdown reactions: thermal, photolytic, and electrolytic.

$Mass_{reactant$ = $Mass_{product}$

$Mass_{mercury oxide$ = $Mass_{mercury} + mass_{oxygen}$

28g = $mass_{mercury}$ + 2g

$mass_{mercury}$ = 26g

Thus, 28.4 g of HgO decomposes and produces 2.0 g of oxygen, then 26 grams of Hg is produced.

$percentage mass_{mercury} = \frac{mass_{mercury}}{mass_{mercury}oxide}$ X 100%

= 26g/28g

= 93%

thus 93% is the percent by mass of Hg present in HgO.

To learn more about Decomposition reaction, refer to the below link:

brainly.com/question/14112196

# SPJ1

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