Classify the following as physical or chemical properties
A. The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements.
B. Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
C. Metallic sodium is soft enough to be cut with a knife.
D. Most metal oxides form alkalis on interacting with water.
Answer:A
Classify the following as physical or chemical properties
A. The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements. B. Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas. C. Metallic sodium is soft enough to be cut with a knife. D. Most metal oxides form alkalis on interacting with water.