In what layer does weather occur? a. mass/volume

b. troposphere

c. stratosphere

d. mesosphere

What is the mass of 0.46 mol of mgcl2

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.