The answer to your question is,
B) CaCl2
-Mabel <3
Because its only representing the most stable isotope of that element but its considered the atomic mass and not average atomic mass
Try C I’m sorry if you get it wrong but I’m like 90% sure
Answer:
There are 
grams contained in all the seawater in the world.
Explanation:
At first let is determinate the total mass of seawater (
), measured in grams, in the world by definition of density and considering that mass is distributed uniformly:
Where:
- Density of seawater, measured in grams per liters.
- Volume of seawater, measured in liters.
If 
and 
, then:
The total mass of sodium chloride is determined by the following ratio:
Given that and 
, the total mass of sodium chloride in all the seawater in the world is:
There are grams contained in all the seawater in the world.
It blocks ACh release so the muscle cannot contract
