0. two water heaters are filled with water at 20°c. heater a holds 40.0 gallons while heater b holds
50.0 gallons. heater a is set to heat its water to a temperature of 98°c while heater b is only set at
83°c. which heater will require the most energy? show all work. (1 gallon equals 3.78 liters.) (hint:
the density of water is 1.00 kg/liter.)

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.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-