Answer:
There are 9.8 ×1021. formula units in 10,005.8gCaO
Compound are formed by two or more elements chemically combined. For example: H^2O is the water formula, this is a compound because you two elements which are Hydrogen and Oxygen and together they form a compound. The (^2) is the amount of atoms the formula has, in this case Hydrogen has two atoms and Oxygen is neutral.
Coffee creamer is a base because if you eat it raw then it will soak up the acid in your stomach.
Eukarya cause all cells with nuclei are considered eukaryotic