Classify the substances given in the figure into elements and compounds.
(N/A) Based on the chemical composition,the substances are classified as follows:
Elements: These are pure substances consisting of only one type of atom. From the figure,the elements are: $Cu$ (Copper),$Zn$ (Zinc),$O_2$ (Oxygen),$F_2$ (Fluorine),$Hg$ (Mercury),and Diamond (an allotrope of Carbon).
Compounds: These are substances formed by the chemical combination of two or more elements in a fixed proportion. From the figure,the compounds are: $H_2O$ (Water) and $CaCO_3$ (Calcium carbonate).
Note: Substances like Sand,$NaCl(aq)$,and Wood are mixtures,not pure elements or compounds.
Elements: These are pure substances consisting of only one type of atom. From the figure,the elements are: $Cu$ (Copper),$Zn$ (Zinc),$O_2$ (Oxygen),$F_2$ (Fluorine),$Hg$ (Mercury),and Diamond (an allotrope of Carbon).
Compounds: These are substances formed by the chemical combination of two or more elements in a fixed proportion. From the figure,the compounds are: $H_2O$ (Water) and $CaCO_3$ (Calcium carbonate).
Note: Substances like Sand,$NaCl(aq)$,and Wood are mixtures,not pure elements or compounds.
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