How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas? Balanced equation: 2H2 + O2 → 2H2O (5 points)

a. 2 moles of water
b. 4 moles of water
c. 5 moles of water
d. 7 moles of water

How many molecules are found in 1.32 mol of nacl?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false