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Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

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

What substance has a mass of 9.5g and volume of 2.1cm^3