Answer:
phsical
Explanation:
it is a phisical cuz your only changing the shape not the chemical structure
Your answer to this question would be B. packaging waste.
hope this helps!
Coefficients need to be changed while balancing a chemical reaction beacuse subscript show how the molecule exists in nature
Answer:
is the solubility of
in 0.10 M
.
Explanation:
Concentration of calcium nitrate = ![[Ca(NO_3)_2]=0.10 M](https://tex.z-dn.net/?f=%5BCa%28NO_3%29_2%5D%3D0.10%20M)

![[Ca(NO_3)_2]=0.10 M=[Ca^{2+}]](https://tex.z-dn.net/?f=%5BCa%28NO_3%29_2%5D%3D0.10%20M%3D%5BCa%5E%7B2%2B%7D%5D)
Solubility product of the calcium fluoride = 
Solubility of calcium fluoride in calcium nitrate solution :

(0.10+S) (2S)
The expression of solubility is given by :
![K_{sp}=[Ca^{2+}][F^-]^2](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BCa%5E%7B2%2B%7D%5D%5BF%5E-%5D%5E2)

Solving for S:

is the solubility of
in 0.10 M
.