The gases in A and B are elements and gases in C and D are compounds. Explain why.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released