Answer:
I think the answer might be D. but im not 100 percent sure
Explanation:
Answer:
Sun
Explanation:
The closest star from the Earth is the sun.
Answer:
a. 52.8
Explanation:
To find the number of moles of HCl we use the relation M₁V₁=M₂V₂
where M₁ is the initial molarity, M₂ the new molarity, V₁ the initial volume used, and V₂ the final volume obtained.
M₁=7.91 M
M₂=2.13 M
V₁=?
V₂=196.1 mL
Replacing these values in the relationship.
M₁V₁=M₂V₂
7.91 M× V₁=2.13 M×196.1 mL
V₁=(2.13 M×196.1 mL)/7.91 M
=52.8 mL
Explanation:
neutralization is a chemical reaction in which acid and a base react equal with each other.
Energy is a reactant of endothermic reactions and a product of exothermic reactions.