URGENT You add 6.2 g iron to 23.80 mL of water and observe that the volume of iron and water together is 24.59 mL . Calculate the density
of iron. Answer in two significant figures with proper units.

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x.xx ml

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.