Concept explainers
Interpretation:
The ratio of the elements present in the given compound should be determined.
Concept introduction:
The element are the pure substances, that can be broken to form other substance, while compounds are made up of two or more elements which are chemically bound in a definite ratio.
Answer to Problem 73A
The ratio of elements present in NaCl is 1:1, CuO is 1:1, H2O is 2:1, and H2O2 is 1:1.
Explanation of Solution
The elements in the compounds are present in a fix ratio that determine its composition and chemical properties. The elements present in the compound give the compound its chemical properties. The numbers represented as the subscript in the chemical formula is the number of atoms of the elements present in the compound formed. So, the ratio of the elements in the compound are as follows:
Compound | Elements | Ratio |
NaCl | Na and Cl | 1:1 |
CuO | Cu and O | 1:1 |
H2O | H and O | 2:1 |
H2O2 | H and O | 1:1 |
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