What are three types of chemical properties

What are the percent by mass of copper in penny lab

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

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.