When solid sodium metal is placed in water, energy is released and sparks fly as sodium hydroxide is formed. which of these best describes this situation? the release of energy is a sign of a change. a) chemical b) endothermic eliminate c) phase d) physical

After cloud droplets form, what must happen to them for precipitation to occur?

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.

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules