Consider the reaction below.
zn(s)+cu2+ (aq) —> zn2+ (aq) + cu(s)
which half reaction correctly describes the oxidation that is taking place?
zn(s) --> zn2+ (aq)+e-
zn(s)-> zn2+ (aq) + 2e-
cu2+ (aq) + 2e-- cu(s)
cu2+ (aq)+e-- cu(s)

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate