Answer:
I think the answer is D.coral reef, neritic zone
Explanation:
<span>Ca(NO3)2 (aq) + Na2SO4 (aq) --> CaSO4 (s) + 2NaNO3 (aq)
Ca2+ (aq) + 2NO3- (aq) + 2 Na+ (aq) + SO4 (aq) --> CaSO4 (s) + 2Na+ (aq) + 2NO3- (aq)
cancel out spectator ions
Ca2+ (aq) + SO4 (aq) ---> CaSO4 (s hope it helps</span>
Answer:
A group of atoms bonded together by different chemical reactions. It is the smallest fundamental unit of a chemical compound.
Explanation:
Answer:
2
Explanation:
Half-life
Concentration
We have the relation
So
Comparing the exponents we get
The order of the reaction is 2.
The rate constant is