16) Evaporation cools you down when you sweat because:

A)
molecules of sweat are cooled by the heat energy of your skin.
B)
molecules of sweat change directly from solid to liquid.
C)
heat energy from your skin causes sweat molecules to boil away.
D)
heat energy from your skin is carried away by escaping molecules .

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4