If 7.0 g of copper were heated from 11.0 Celsius to 43 Celsius in a Coffee cup calorimeter How much heat was absorbed by the copper?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.