Chapter 3, Problem 106A

Interpretation Introduction

Interpretation:

Some examples of an element and a compound from the given table needs to be listed.

Concept introduction:

Elements are naturally occurring pure substance that can be found in free or combined state and cannot be broken down by chemical means. An individual element of a particular atom has always the same periodic properties irrespective of the place or state that element is found.

Two or more chemical elements combine to form Compounds. As here the elements are chemically bonded (covalently or ionically) to form a compound, so they can be broken down into simpler elements.

Answer to Problem 106A

Element present in the table is Charcoal.

Compounds present are:

Egyptian blue $CaCuS{i}_4{O}_{10}$, Indigo $C_{16}{H}_{10}{N}_2{O}_2$, Iron oxide red $F{e}_2{O}_3$, Verdigris $Cu{(C_2{H}_3{O}_2)}_2.2Cu{(OH)}_2$ are chemical compounds that can be broken in simpler units.

Explanation of Solution

Element present in the table is Charcoal as it is found naturally in nature that cannot be broken in simpler units.

Compounds present are:

Egyptian blue $CaCuS{i}_4{O}_{10}$ also known as Chinese blue are alkaline-earth-metal copper silicates.

Indigo $C_{16}{H}_{10}{N}_2{O}_2$ is a chemical compound that is a blue crystalline chemical powder, insoluble in water.

Iron oxide red $F{e}_2{O}_3$ is a chemical compound used as iron ores, pigments, catalysts, making thermite and also occurs in hemoglobin.

Verdigris $Cu{(C_2{H}_3{O}_2)}_2.2Cu{(OH)}_2$ is a bluish-green layer that is formed naturally on copper or brass in presence of air. It’s a chemical mixture of compounds.

Conclusion

Element present in the table is Charcoal as it cannot be broken further.

Compounds present are:

Egyptian blue $CaCuS{i}_4{O}_{10}$, Indigo $C_{16}{H}_{10}{N}_2{O}_2$, Iron oxide red

$F{e}_2{O}_3$, Verdigris $Cu{(C_2{H}_3{O}_2)}_2.2Cu{(OH)}_2$ are chemical compounds because they can be broken into simpler units.