What mass of H2O is produced from 100 g of H2 in the foillowing reaction. 2H2 + O2 → 2H2O

Calculate the number of molecules present in 0.750 mol of mgo.

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous