N2 + 3H2 2NH3 How many molecules of H2 are represented in the reaction? How many nitrogen atoms are represented in the reactants? How many moles of NH3 are formed?

A student measures the mass of a beaker filled with corn oil. the mass reading averages 215.6 g. the mass of the beaker is 110.4 g. a. what is the mass of the corn oil? b. what is the density of the corn oil if its volume is 114 cm3?

The best explanation for the decrease in the amount of energy transferred to each succeeding level is that much of the energy is

Is Ba (OH) 2 an Arrhenius Base?

What are the three types of polyunsaturated compounds? Give examples of all three. 10 Page

Definition of analytical chemistry

Which of the following has the greatest mass, in grams? a. 1 atom of lead (Pb) b. 0.5 mol copper (Cu) atoms c. 0.3 mol gold (Au) atoms d. 25 atoms of mercury (Hg)

Which one is not a sedimentery rock a.) sandstone b.) limestone c.) quartz d. (coal

Which group is more reactive than the alkaline earth metals?

Why do you not want any of the water on the outside of the test tube to drip off into the calorimeter?

What is the mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minutes?