How many moles are represented by 118 g of cobalt? cobalt has an atomic mass of 58.93 amu.

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

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.