Chemistry Holiday Homework

Brass is an example of?

• Alloy

• Mixture

• Compound

• Element

Non-Metals are ___atomic.

• Triatomic

• Polyatomic

• Monoatomic

• None of above

_____ is the process to separate fine insoluble solids through a filter.

• Loading

• Filtration

• Distillation

• Sieving

State true/false:Centrifugation is used for separating mixture of chalk powder and water.

• True

• False

State true/false:Evaporation is the process of separating pure sugar crystals from the sugar solution.

• True

• False

What is the valency of Sulphite?

• 1

• 3

• 2

• 4

A radical having a positive charge is known as _____ or basic radical.

____ is expressed in whole numbers.

The chemical formula for Magnesium Nitride is:

• MgNO₄

• (Mg)₂NO₃

• MnN₂

• Mg₃N₂

The symbol of ammonium radical is ______.

• 
• 
• 
•