1. what type of reaction is listed below? prove that it is balanced by listing the number of elements on both side of the equation (reactants vs. products)? ch3cooh + nahco3  nach3coo + h2co3

It is a double replacement, followed by a decomposition.

NaHCO3(aq) + CH3COOH(aq) → CH3COONa(aq) + H2CO3(aq) (double replacement)
H2CO3(aq) → H2O(l) + CO2(g) (decomposition)

The decomposition is so fast that you have no measurable concentration of H2CO3 in the solution. The formation of CO2 forms the bubbles in the solution.

Ibelieve your answer is true 

Ok so co(g) is not pronoused that. the only clue is that youpronouse it the oppisote way.