What is the activation energy of this reaction? 10 kJ 25 kJ 30 kJ 35 kJ

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?