Answer:
50 N
Explanation:
Because It not in motion means it standing still. So the answer is 50 Newton
Answer: 151 kJ
Explanation:
To calculate the moles :
It is given that:
0.267 moles of 
absorb energy = 40.3 kJ
Thus 1 mole of absorb energy =
Thus the value of 
for the chemical equation given is 151 kJ
A water and salt is produced
B because it does happens when you make a dam waters is upstream and when the dam breaks it flows down stream
