I have a couple chemistry questions

Question

1.) Identify the base in the following chemical equation:
CH3CO2H + OH- ⇔ H2O + CH3CO2-

 

2.)What is the proton acceptor in the following equation: (How do I figure this out?)

HNO2 (aq) + H2O (l) ⇔ H3O+ (aq) + NO2- (aq) 

 

3.)What is the missing number most likely to be for the molecule below?
        GeBr?

(How would I figure this out?)

Answer 1

1. OH^- is the base. It accepted the H⁺ion. CH3COOH is the acid. It donated the H⁺ ion

 

2. H₂O became H₃O⁺. It accepted a proton (H⁺) in this process. So H₂O is the proton acceptor (it is the base)

 

3. Look at the periodic table. Ge is in period or column 6. The elements in this period have a valance of 4⁺. Br has a valance or 1^-. Therefore we need 4 negative charges to neutralize the 4 positive charges.

 

Therefore the compound is   GeBr₄