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Answer:</h2>
% Composition of elements:
- Magnesium = 75%
- Oxygen = 25%
Atomic mass of given elements:
- Magnesium = 24 g
- Oxygen = 16 g
Now, divide % composition by Atomic mass:


Simplest Ratio:


Empirical Formula:

Answer:
Container A is a solution and Container B is a colloid.
Explanation:
Container A is a solution as the tyndall efffect is not present. You cannot see the light bean through the glass.
Container B is a suspension or a colloid as you can see the beam through the glass.
The first option proposes Container A is a colloid...this is not correct
The third option is not true as the tyndall effect is only displayed in container B
The fourth option is not correct the tyndall effect is not present in container A meaning it would not be a suspension or a colloid and you can see the tyndall effect in container B indicating its not a solution