Question

Fill in the blanks÷

1)Iron with valency 2 is known as ______whereas iron with valency 3us known as ________
2)________is a symbolic representation of a molecule of compound.
3)Balancing of equation is based upon law of conservation of ____
4)The formation of ________is indicated by downward arrow.



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Answer 1

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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