Calculate the molarity of a solution obtained dissolving 15.0 g of cobalt(Ⅱ) bromide dihydrate in enough water to make 225 mL of solution

The study of witch tree monkeys feed in is part of the science life

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?