How many grams of hydrogen (H2) are needed to react with 92.00 grams of nitrogen (N2)?

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false