How many moles are equal to 1.27 x
10^23 molecules of H2O?

How many grams of n2h4 will be consumed by 23 g of n2o4

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

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