Moles are mass/Mr
or Concentrate × Volume in order to find the mole of CaO u need to find the mole of CO2 and take it away from CaCO3
Im so sorry i don’t know I just need to answer 2 questions for me to be Able to ask
I believe it is ice cubes.
Answer:
A system absorbs more energy than it releases and has a positive AH
Explanation:
Answer:
Explanation:
Endothermic (endo = into + thermic = heat) means that heat energy is going into a system.
The products will have more energy than the reactants and ΔH will be positive.
A is wrong, because ΔH is positive.
C and D are wrong, because the system absorbs more energy than it releases.
This would probably be based on the number and type of chemical bonds the substance has.