Question

Which statement describes a physical property of copper?

It reacts with strong acids.
It can be reshaped by a force.
It ignites at high temperatures.
It can combine with oxygen.

Answer 1

The correct answer is It can be reshaped by a force

That is because physical properties are ones that don't change the substance when it is physically altered. If copper is physically changed, none of its other chemical properties are influenced.

Answer 2

Answer is: It can be reshaped by a force.

Physical property can be observed and measured without any changes in molecular composition. The same substance is present before and after the change, changing the shape is physical change.

Copper reaction with acid, ignition and combination with oxygen are chemical change (chemical reaction), because new substances are formed, the atoms are rearranged and the reaction is followed by an energy change.