2. classify each of the following reactions as a
synthesis, decomposition, single-displacement,
double-displacement, or combustion reaction:
a. n.(g) + 3h2(g) +2nh2(g)
b. 2li(s) + 2h,0(1) -2lioh(aq) + h2(g)
c. 2nano3(s) +2nano3(s) + 0,(9)
d. 2ch() + 190,(g) 1200,(g) + 14h, o(1)

a. Synthesis reaction

b. Single - Displacement

c. Decomposition reaction

d. Combustion Reaction

Explanation:

Synthesis reaction: Reaction in which two or more substance combine to give a single compound.

Single - Displacement : Reaction in which the more reactive element displaces the less reactive element.Here Li replace OH from water.

Decomposition reaction: Reaction in which a single reactant decompose to give two or more products.

Combustion Reaction : IT is a redox reaction in which a substance is burned in the presence of oxygen to give carbon dioxide and water.

given the reactants, h2so4 and koh, we are asked to determine the product(s) of the reaction. since h2so4 is an acid and koh is a base. this is a neutralization reaction, thus, the products are salt and water. 

so, h+ from h2so4 will react with oh- from koh forming h2o. k+ will also react with so4 2- forming k2so4. therefore, the balanced reaction will be:

h2so4 + 2koh > k2so4 + 2h2o

explanation: