Free Printable Basics of Chemistry

Worksheets

Basics of Chemistry

Total questions: 14

Worksheet time: 12mins

Name

Class

Date

What is the chemical formula of Amonium Sulphate?

NaNO₃

(NH4)2S

(NH₄)₂SO₄

None of the Above

The last shell in Atom can fill at MAX ----- electrons.

Write the number in alphabetical form

Eg - Three

And first letter to be capital

(a)

Ammonium Chloride chemical formula is ?

CO2−3

[NH ₄] ₂CO ₃

NH₄Cl

(C14H21NO11)n

Derive formula of sodium phosphate

Eg - Sodium Nitrate Formula -- NaNO3

(a)

Atomic number of Sodium

(a)

Symbol of Potassium

(a)

Formula of Sodium Nitrite

NaNO₂

NaNO₃

NaNO₄

NaNO

Vallency of Oxygen

Vallency of Sodium

-2

10.

How many grams of oxygen are in one mole of calcium carbonate, CaCO₃?

The atomic mass of O = 16 amu

32 grams

56 grams

40 grams

48 grams

11.

Atomic Number of Carbon

12.

Chemical formula of Sodium Oxide

NaO3

NaO2

NaO

Na2O

13.

Which one is a subatomic particle in atom

Positron

Neutron

Negetron

Anti Proton

Electron

14.

How many neutrons in the oxygen