Question

quickly please answer me

Answer 1

CaCO3 + H2SO4 ----> CaSO4 + CO2 + H2O ( #a)

Answer 2

a) metal carbonate + acid -> salt + CO2 + H2O
b) metal bicarbonate + acid -> salt + CO2 +H2O
c) metal oxide + acid -> salt + H2O

B] Solution A has more hydrogen ion oncentration.
A- STRONG ACID
B- WEAK BASE
C - STRONG BASE