Answer:
1.3 M
Explanation:
1 mole= Concentration * Volume
1 mole=C*0.75 L
C=1.3 M
The conversion factor for volume at STP is

or \frac {22.4L}{1mol}. Since we want volume, we would use \frac {22.4L}{1mol}. We conclude with the following calculations:
The answer is 44.8L Cl2
Protons and neutrons i think , sorry if i’m wrong.
Answer:

Explanation:
-An endothermic reaction is a chemical reaction that gains or absorbs heat from its surrounding in the form of heat.
-During the reaction, the temperature of the surrounding reduces.
-From the reactions given:

is the only endothermic reaction.
