Calculate the grams of ethane present in a sample containing 0.1821 moles if the molar mass of ethane is 30.067 g/mol.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

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?