What is the percent composition of Mg in the compound Mg3(PO4)2? Question 8 options:

A. 23.57%
B. 21.92%
C. 27.74%
D. 32.32%

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?