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Chemistry Class # 9 Ch # 1 Quiz # 2

Welcome to your Chemistry Class # 9 Ch # 1 Quiz # 2

1. 

Which of the following compounds have the same molecular as well as empirical formula?

2. 

Mass number of an atom is denoted by_________

3. 

Chemical formula of Magnesia is______

4. 

The formula of Calcium oxide is ______

5. 

The symbol of Tungsten element is ___________

6. 

Avogadro’s number is numerically equals to ______________

7. 

___________  are atoms or group of atoms that has a single electron in an outer shell with no charge.

8. 

An atom which have net negative charge is known as

9. 

The particle that carries an electrical charge, positive or negative is known as

10. 

Molecular ions are also called

11. 

Which of the following molecule have the same empirical as well as molecular formula

12. 

The empirical formula of acetic acid is

13. 

Molecular formula shows

14. 

Molecular formula of Benzene is

15. 

The average atomic mass of chlorine is