Hep me pls 10 points pls

what do the symbols in parenthesis indicate?
cacl2(aq) + 2agno3(aq)) → ca(no3)2(aq) + 2agcl(s)

1 the catalyst used in the reaction

2 the number of atoms of each reactant and product

3 the physical state of each reactant and product

4 the number of units of each reactant and product

the answer would be c

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

може ли да зареждате повече информация, моля