Chapter 19, Problem 119A

Interpretation Introduction

Interpretation : The product of the combination reaction is to be written.

Concept Introduction : The classification of chemical reactions is done to predict what products are actually formed. A combination reaction is one of the types of the chemical reaction.

Answer to Problem 119A

The product of the combination reaction is ${\text{K}}_{\text{2}}\text{O}$ (potassium oxide).

Explanation of Solution

In a combination reaction, two or more chemicals combine to create a single new compound.

Potassium metal and oxygen gas combine to form the compound potassium oxide.

  $\text{K}\left(s\right)+{\text{O}}_{\text{2}}\left(g\right)\to {\text{K}}_{\text{2}}\text{O}\left(s\right)$

In combination reactions, two reactants combine to give a single product.

Interpretation Introduction

Interpretation : The product of the combination reaction is to be written.

Concept Introduction : The classification of chemical reactions is done to predict what products are actually formed. A combination reaction is one of the types of the chemical reaction.

Answer to Problem 119A

The product of the combination reaction is $\text{CaS}$ (calcium sulfide).

Explanation of Solution

In a combination reaction, two or more chemicals combine to create a single new compound.

Calcium metal and sulfur gas combine to form the compound calcium sulfide.

  $\text{Ca}\left(s\right)+\text{S}\left(g\right)\to \text{CaS}\left(s\right)$

In combination reactions, two reactants combine to give a single product.

Interpretation Introduction

Interpretation : The product of the combination reaction is to be written.

Concept Introduction : The classification of chemical reactions is done to predict what products are actually formed. A combination reaction is one of the types of the chemical reaction.

Answer to Problem 119A

The product of the combination reaction is ${\text{AlF}}_3$ (aluminium fluoride).

Explanation of Solution

In a combination reaction, two or more chemicals combine to create a single new compound.

Potassium metal and oxygen gas combine to form the compound aluminium fluoride.

  $\text{2Al}\left(s\right)+3{\text{F}}_{\text{2}}\left(g\right)\to 2{\text{AlF}}_3\left(s\right)$

In combination reactions, two reactants combine to give a single product.