4. (3pts) Calculate the mass of potassium chloride (CI) needed to make 500.0mL of a 1.20M solution of potassium chloride. (44.73)

How have the greenhouse gasses increased from the year 2000 to 2018

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules