How many equivalents are present in 10 g of ca2+?
1
0.5
1.5
2

Compare and contrast physical changes with chemical changes.

Determine the reaction and balance the following equations urgent due in the morning

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?