If an object has a density of 0.55 g/ml, what is its density in cg/l?
0.0055 cg/l
55 g/l
550 g/l
55,000 g/l

An experimental procedure requires a 10 ml of acid to be dissolved

Enzymes affect the reactions in living cells by changing the

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?