An AX ceramic compound has the rock salt structure. If the radii of the A and X ions are 0.137 and 0.241 nm respectively, and the respective atomic weights are 22.7 and 91.4 g/mol, what is the density in grams/cm3 of this material

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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.

Most metamorphosis processes take place