Question

You used heat to remove X from a hydrate and obtain Y.

a) Water, an anhydrous salt
b) Water, a hydrate
c) Oxygen, an anhydrous salt
d) Oxygen, a hydrate

Answer 1

Heating a hydrate to remove X results in Y, where X represents waters of hydration and Y is an anhydrous salt. The correct answer is a) Water, an anhydrous salt.

Step-by-step explanation:

When you use heat to remove X from a hydrate to obtain Y, X is the waters of hydration, which are the loosely bound water molecules in hydrate compounds. The process of heating leaves behind Y, which is an anhydrous salt, a compound without its water of hydration. Therefore, the answer to what X and Y represent is a) Water, an anhydrous salt. It's important to note that during this process oxygen is not removed from the compound; instead, water molecules are removed, leading to the anhydrous (meaning "not hydrated") form of the salt.