Chemical Formulas and Compounds CH 7 Review

Front

What is the oxidation state of carbon in CH₄?

Back

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Front

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

Back

C₆H₁₂O₆

Front

What is the oxidation number of hydrogen in NaH?

Back

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Front

What is the empirical formula for a compound with 88.80% copper and 11.20% oxygen?

Back

Cu₂O

Front

If the empirical formula is CF₂ and the molecular formula mass is 192, what is the molecular formula?

Back

C₄F₈

Front

Define empirical formula.

Back

The simplest whole-number ratio of atoms of each element in a compound.

Front

Define molecular formula.

Back

The actual number of atoms of each element in a molecule of a compound.

Front

What is the significance of oxidation states in chemical reactions?

Back

Oxidation states help determine how electrons are transferred in redox reactions.

Front

How do you calculate the empirical formula from percent composition?

Back

Convert percentages to grams, divide by molar mass, and find the simplest ratio.

Front

What is the oxidation state of oxygen in most compounds?

Back

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