Question

ectQuestion 7Which of the following is a combination reaction?ON2 (8) + O2(8) ► 2NO(g)AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)KOH(aq) + HNO3(aq) → H2O(l) + KNO3(aq)CaCl2(aq) + Na2SO4(aq) → CaSO4(s) + 2NaCl(aq)Al2(SO4)3(aq) + 6KOH(aq) → 2Al(OH)3(s) + 3K2SO4(aq)

Answer 1

`\text{ N}_(2(g))\text{ + O}_(2(g))\text{ }\rightarrow\text{ 2NO}_((g))`

Step-by-step explanation

A combination reaction is defined as the type of reaction where two or more elements or compounds are combined together to form a single product.

`\text{ A + B }\rightarrow\text{ AB}`

The above chemical reaction equation is an example of a combined reaction

Looking at the options, you will see that the chemical equation in option A shows a combined reaction

Hence, option A is correct