Answer:
[C]
Explanation:
H20 does not appear when it is a liquid because pure water has a concentration of 1. However, you must notice that it is a gas in this problem so it must be entered.
The Reason C is not is because it is a solid. solids also have a concentration of 1 and are not necessary to calculate Ka or Kb
Answer:
I
Explanation:
I dont know, man, that looks hard man. I wish i could help you right now but i got trampled over by a group of screaming goats. i think i got a concussion man, I canyt think straight.
Answer:
Yes
Explanation:
In a chemical reaction heat is produced as a result of the reaction
Answer:
20.53 g.
Explanation:
- Knowing that every 15.0 g of pure calcium fluoride contains 7.70 g of calcium.
<u>Using cross multiplication:</u>
15.0 g of pure calcium fluoride contains → 7.70 g of calcium.
40.0 g of pure calcium fluoride contains → ??? g of calcium.
<em>∴ The mass of Ca in 40.0 g of calcium fluoride</em> = (7.70 g)(40.0 g)/(15.0 g) = <em>20.53 g.</em>
