Question

Chemistry
Iron with valency 2 is known as _____ whereas iron with valency 3 is known as _____.​

Answer 1

1. Fe (II)
2. Fe(III)

here are your answers

Answer 2

Answer:

1)iron with valency 2 is known as ferrus.

iron with valency 3 is known as ferric.

2)chemical equation is a symbolic

representation of molecule of compound.

3) balencing of equation is based upon the law of conservation of mass

4)the formation of precipate is indicated by downward arrow

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