Find the location of lithium (Li) on the periodic table. What type of ion will lithium form?
A. An ion with a -7 charge
B. An ion with a -1 charge
C. An ion with a +7 charge
D. An ion with a +1 charge

In which of these cases are the two wave points considered to be in phase with each other?

Find the mass in grams of 1.37x1020 particles of h3po4

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?