Which of the following sequences correctly displays the energy transformation from the inside of a battery to the igniter inside a car's engine? a. heat energy electrical energy chemical energy b. electrical energy chemical energy heat energy c. chemical energy electrical energy heat energy d. chemical energy mechanical energy heat energy

How many neutrons does a atom of cobalt have?

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.

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?