The sides of a rhombus are equal. always sometimes never

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

Two lines parallel to the same plane are parallel to eachother

Which graph corresponds to the function f(x) = x2 + 4x – 1?