1. What mass of Mgo will I make from 48 g of Mg?
2Mg + O2 + 2MgO

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

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?

What are fossils of organisms that existed over a wide area but only for a limited time period called?