Question

brad and juan conducted several tests to determine the properties of silver metal. they noted that it was white, and conducted both electricity and heat. they computed the density to be 10.49 g/cm³. silver did not react with water but in nitric acid, gas was released. what evidence supports a chemical change in the silver? a silver conducts electricity. b silver reacts with nitric acid to produce a gas. c the color of silver at room temperature is white. d silver conducted heat and as the temperature increased, became more malleable.

Explanation:

A chemical change results in the formation of new substances. When silver reacts with nitric acid to produce a gas, a new chemical substance (the gas) is formed, indicating a chemical change. Conducting heat/electricity, color, and malleability are physical properties.

Answer:

B. Silver reacts with nitric acid to produce a gas.