Symbols and Chemical Formula

Cu is the _______

• Symbol for Carbon

• Symbol for Copper

• Symbol for Calcium

• Symbol for Sulphur

The symbol of Oxygen is _________

• O

• C

• P

• K

Symbol of Iron is

• Be

• Fe

• Bi

• Na

The Chemical formula for Sodium oxide is _____

• Na₂O

• NaOH

• NaO

• N₂O

Select the correct molecular formula of Sodium sulphate

• Na₂SO₄

• NaSO₄

• Na₂(SO₄)₃

• Na₂S

The Formula of Common salt is _________

• NaCl

• KCl

• PCl₃

• MgCl₂

The Symbol of Potassium is _______

Identify the sulphate ion from the following.

• PO₄ ^3-

• CO₂^2-

• OH^-1

• SO₄^2-

What is the symbol for Phosphorus?

• P

• K

• PO₄

• Na

Choose the correct formula for Magnesium chloride

• MgCl₂

• MgCl

• Mg₂Cl

• Mg₂Cl₂