Interpretation:
The method to obtain the chemical formula from the name of a compound needs to be explained.
Concept introduction:
Chemical formula is the representation of a chemical compound which shows the stoichiometry of all the participating atoms.
Answer to Problem 1TAI
From the valency of an
Explanation of Solution
For example sodium has valency one and it produces sodium cation.
Chlorine has valency one and it produces chloride ion. So to make the compound overall neutral, one sodium and one chlorine atom must combine to produce sodium chloride (NaCl).
Similarly calcium has valency 2 and chlorine has valency 1. So, to make the compound neutral, one calcium ion will need two chloride ions. Thus, formula is CaCl2. Name is of the compound is calcium chloride which is obtained from the name of the participating atoms.
Chemical formula and name of a compound can be predicted from the valency of participating atoms.
Chapter U1 Solutions
Living by Chemistry
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