3. Chemical Reactions

In the molecular formula for water, H2O, what does the subscript '2' indicate?

A molecule with the chemical formula C_6H_{12}O_6 is probably a:

Which of the following is NOT an example of a molecular formula?

Which of the following is a molecular formula?

How many hydrogen atoms are present in one molecule of water (H_2O)?

Given the elementary reaction: a + 2b → ab₂, what is the molecularity of this reaction?

Which of the following molecules contains two nitrogen atoms and is highly soluble in water?

How many hydrogen atoms are present in a molecule of acetic acid (CH3COOH)?

In a pure sample of CH₄, which of the following statements is correct?

Which statement best describes the meaning of the molecular formula C6H12O6?

Which of the following best describes the smallest unit of a chemical compound that still retains the properties of that compound?

Which type of formula indicates the actual number of atoms of each element present in a compound?

How many iodine atoms are present in one molecule of CI4?

How many chlorine atoms are present in one molecule of HCl?

Which of the following is the correct molecular formula for silicon tetrachloride?