Question

2.Giving an example list two information which make a chemical equation more useful (informative).

Answer 1

Answer:

Chemical equations can be made more informative by the following characteristics:-

Physical state:-

There are three different states which are solid, liquid and gaseous. If the substance exists in solid state, it is represented by (s).

If the substance exists in aqueous state, it is represented by (aq).

If the substance exists in gaseous state, it is represented by (g).

. Evolution of gas:-

If the gas is liberated in a reaction, it is indicated by an arrow upward and its physical state is shown by (g).

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Answer 2

Answer:

The Theory of MENDILIVE about the Period Table which shows us information about the the atomic weight one of chemical equation.

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