A Lei dos gases ideais permite deduzir que

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

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.