Which is a pure substance?
A)table salt
B)bronze
C)air
D)soil

Question

Quizplus · Accepted Answer

Table salt is a chemical compound made of sodium and chlorine, and it is a pure substance because it has a definite and constant composition. Bronze is an alloy made of copper and tin, and it is not a pure substance because it is a mixture of different metals. Air is a mixture of gases and therefore not a pure substance. Soil is a mixture of organic matter and minerals and is not a pure substance.

Which Is a Pure Substance