Answer:
D
Explanation: An exothermic change is Because it has heat.
Answer:
\large \boxed{\text{12.3 mol HCl}}
Explanation:
We need a balanced chemical equation with moles.
2HCl +Ca(OH)₂ ⟶ CaCl₂ + 2H₂O
n/mol: 12.3
The molar ratio is 2 mol H₂O:2 mol HCl.

Answer: I think the answer is C)
Explanation:
Answer:
They tax the citizens and then provide them with relief efforts
Explanation:
Common disease protocol