D melting ice cream because if u know what a physical change is its a change that you can reverse chimical change are changes you cant reverse so u can freeze back ice cream so :D
Answer:
93 moles
Explanation:
1 mole of CaCO_3 will have 6.022×10^(23) molecules of CaCO_3 .
Given number of molecules of Calcium carbonate = 5.60 x 10^(25)
Therefore, number of moles n =
n= 93 moles
Explanation:
they have different mass number but same atomic number
The salt whose aqueous solubility will most likely to change the pH of the solution is CaF2(aq).
The pH of a salt solution depends on the nature of the acid and base that forms the salt.
- Salt of a weak acid and a strong base yields a basic solution
- Salt of a strong acid and a weak base yields an acidic solution
- Salt of a strong acid and a strong base yields a neutral solution.
Since HF is a weak acid, its salt CaF2 will be slightly basic when dissolved in water hence the pH of the solution is altered.
Learn more: brainly.com/question/14072179