Why is oxygen written with a subscript 2 in CO2?
.
A. Its mass is twice as great as the...
Why is oxygen written with a subscript 2 in CO2?
.
A. Its mass is twice as great as the reactants'.
B. Each molecule of carbon dioxide has two oxygen atoms.
C. Its mass increases by two times as a result of the reaction.
D. Carbon always bonds to two oxygen atoms.
Answers: 3
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When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh β
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The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
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