a molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. this is a statement of . group of answer choices the law of conservation of mass the law of constant composition the law of conservation of energy none of the above the law of multiple proportions

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16-12-2022
Chemistry

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a molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. this is a statement of . group of answer choices the law of conservation of mass the law of constant composition the law of conservation of energy none of the above the law of multiple proportions

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kjuli1766 kjuli1766 · Answer 1 · 2022-12-20T13:05:41-05:00

A molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. this is a statement of the law of constant composition. Option B.

A water molecule is composed of hydrogen atoms and oxygen atoms bonded in a 2:1 ratio. Due to their fixed mass ratios, water molecules obey the law of constant proportions. Another example of a compound that obeys the law of constant ratios is methane.

To illustrate this, consider the production of water from molecular oxygen and hydrogen. Therefore mass is conserved. Conservation of mass can be used in chemical calculations. The law of conservation of mass states that matter cannot be created or destroyed.

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