Answer:
Explanation:
The bottom picture shows a Mg atom. There are two electrons on the outside ring. When Mg reacts with something, these 2 electrons are given away. The top picture records that fact.
Answer:
The solution is a base
Explanation:
A basic solution changes red litmus paper to blue. This is one unique property of a base that differentiate them from All other compound
Answer:

Explanation:
X + Y ⟶ XY
mass: 22.7 g x 86.9 g
According to the Law of Conservation of Mass, the mass of the product must equal the mass of the reactants.

The answer would be Rutherford inferred the existence of a dense, positively charged nucleus.