Question

3. FILL IN THE BLANKS :
1. Iron with valency 2 is known as
_______whereas iron with valency 3 is known as

2. Radical made-up of only one kind of atoms are known as _____ radical.

3._________
is the symbolic representation of a molecule of a compound.

4. Balancing of equation is based upon law of conservation of______

5. The formation of ____is indicated by downward arrow.​

Answer 1

Answer:

1.iron(II) , iron(III)

2.molecule.

3.

4.mass

5.precipitate

Answer 2

Answer:

1) ferrous compound

2) free radical

3) chemical formula

4) law of conservation of mass

5) formation of precipitation