They have a sea of delocalised electrons which are free to move therefore they can carry a current
Answer:

Explanation:
To do this, we find the moles of each element. We get around 0.155 moles of Fe, 0.051 moles of P, and 0.206 moles of O. We then divide each one by the smallest one (which is 0.051 moles of P). We then get 3 for Fe, 1 for P, and 4 for O. This correlates to the empirical formula of the compound.
The correct answer is A: Vapor pressure lowering.
Certain properties in chemistry are called colligative properties. These colligative properties depends on the amount of solute present.
Examples of colligative properties include;
- Vapor pressure lowering
- Freezing point depression
- Boiling point elevation
- Osmotic pressure
When a solute is introduced into water, the vapour pressure of water is lowered.
Hence, when KI is added to a sample of water, vapor pressure lowering occurs.
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5 the answer is B 6 the answer is D