How do you balance S8+F2=SF6

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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.

Heat is the total potential energy of a substance that can be transferred. true false