A man used a force of 250 Newtons for 90 seconds to pull on a rock that remained stationary. How much work was done?

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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 is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5