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3 years ago

Which equation illustrates conservation of mass?

Chemistry

1 answer:

Maksim231197 [3]3 years ago

6 0

Answer:

1H₂ + 1Cl₂ → 2HCl

Explanation:

The reaction that illustrates the law of conservation of mass is shown below:

1H₂ + 1Cl₂ → 2HCl

According to the law of conservation of mass "in a chemical reaction, matter is neither created nor destroy but atoms are rearranged".

Therefore, we are expected to the end a reaction with the amount of substance we start with.

Element H Cl

Reactants 2 2

Products 2 2

We see that number of atoms on both sides are the same.

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Hydrogen sulfate ( $HSO_{4}^-$ ) is an ion from sulfuric acid. It is still an acid in itself and can "react" with water (( $H_{2}O$ ) to form the sulfate ( $SO_{4}^2-$ ) and hydronium ( $H_{3}O^+$ )ions.

$HSO_{4(aq)}^{-} + H_{2}O_{(aq)} --> SO_{4(aq)}^{2-} + H_{3}O_{(aq)}^+$

Based on the previous discussion, $SO_{4(aq)}^2-$ is identified to be the conjugate of the acid $HSO_{4(aq)}^-$ . Thus, the conjugate acid-base pair is $HSO_{4(aq)}^{-} - SO_{4(aq)}^{2-}$ .

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