Granite rough and has ridges
Obsidian more smooth and hard
Pumice red and bumpy
Scoria grey and rough like
the answer will there for be ironic
I think your answer is D. However I’m not 100% sure.
Answer:
B
Explanation:
cause surface area of solute is not necessary for solution
Vs = 1.0 mL = 0.001 L
c((NH4)2CO3) = <span>0.02 M
n(</span>(NH4)2CO3) = ?
For the purpose, here we will use the next equation:
c=n/V ⇒ n=cxV
n((NH4)2CO3) = 0.02M x 0.001L
n((NH4)2CO3) = 2x10⁻⁵ mole of (NH4)2CO3 is presented in the solution