Aand b are powders, a is insoluble while b dissolves to give a ph 3 solution. mixing a and b gives bubbles or effervescence and a clear solution.
a) which is the acid?
b) if the other substance is a carbonate, name the gas given off.
c) even though a is insoluble a clear solution is given off, explain why.

I think it is a nitric acid

a) B is an acid

b)carbon dioxide

c) it is salt of the acid

Explanation:

a)  B dissolves to produce an acid. An acid, according to the Bronsted-Lowry theory, dissolves in an solution to give an acid solution of a pH less than 7 on a pH scale.

b) carbonates gives a gaseous effervescence. The gas given off is carbon dioxide

c) The solution is a salt of an acid. This is in an aqueous solution.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

did anyone actually do this? like if anyone has submitted this i rly need .