Question

__nacl → nano₃ + agcl type of reaction: ____________

1. __mg + o₂ → mgo type of reaction: ____________
2. __ag + s → ag₂s type of reaction: ____________

Explanation:

Step1: Balance reaction 13

Count Mg: 1 on left, 1 on right. Count O: 2 on left, 1 on right. Multiply MgO by 2, then Mg by 2. Balanced equation: $2\text{Mg} + \text{O}_2
ightarrow 2\text{MgO}$.

Step2: Identify reaction type 13

Two reactants form one product: synthesis.

Step3: Balance reaction 14

Count Ag: 1 on left, 2 on right. Count S:1 on left,1 on right. Multiply Ag by 2. Balanced equation: $2\text{Ag} + \text{S}
ightarrow \text{Ag}_2\text{S}$.

Step4: Identify reaction type14

Two reactants form one product: synthesis.

Answer:

1. Balanced equation: $2\text{Mg} + \text{O}_2

ightarrow 2\text{MgO}$; Type of reaction: Synthesis

1. Balanced equation: $2\text{Ag} + \text{S}

ightarrow \text{Ag}_2\text{S}$; Type of reaction: Synthesis