TRUE or FALSE: The current global warming trend is the first time Earth has gotten warmer

Compare and contrast physical changes with chemical changes.

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 fact that the total amount of energy in a system remains constant is a(n)