A student makes several observations about a piece of iron. Which observation describes a chemical property of the iron
CAs massis 52 grams
CB s density is 79 grams centimeter
Oct ruses when exposed to air
It conducts electricity

the answer is either b or c

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

elements make up everything, and they combine to make compounds.

the answer is c

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante