3. Chemical Reactions

Which elements are present in the compound calcium carbonate (CaCO_3)?

A chloride of silicon contains 79.1% by mass of Cl. What is the empirical formula of this silicon chloride?

Which molecular formula is also an empirical formula?

Which term represents the simplest whole-number ratio of atoms of the elements in a compound?

What is the empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?

Which of the following shows the correct number of atoms of each element in the formula Mg(NO3)2?

In the chemical formula P2O5, how many atoms of each element are present?

Given that the empirical formula of a compound is C_3H_5 and its molecular mass is 205.4 g/mol, what is the value of n in the relationship: molecular formula = (empirical formula)_n?

How many different elements are present in the empirical formula of aspirin (C9H8O4)?

A compound consists of molecules containing 2 nitrogen atoms and 4 oxygen atoms. What are the molecular and empirical formulas of this compound?

A compound is found to be 83.7% carbon and 16.3% hydrogen by mass. What is the empirical formula of this compound?

Which of the following formulas represents an empirical formula?

Which statement is true about an empirical formula?

Which of the following is the empirical formula of acetic acid?

Which pair of compounds shares the same empirical formula?