How many grams of magnesium chloride are needed to prepare 30.0 g of 12% (m/m) magnesium chloride solution?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

How to convert a density of 0.791g/cm3 to lb/ft3

How far is the region from the equator or control climate