Explanation:
I think the answer is this for a better check mass- mass ratio in stoichiometry lesson
Answer: If the light ray hits the boundary at an angle which is not perpendicular to or parallel to the surface, then it will change direction and appear to `bend'
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You can tell the difference by How shiny it is and by how heavy it is
Answer:
Explanation — This page looks at the oxidation of alcohols using acidified sodium or ... of sodium or potassium dichromate(VI) acidified with dilute sulfuric acid. ... The electron-half-equation for this reaction is as follows: ... To do that, oxygen from an oxidizing agent is represented as [O]. ... Article type: Section or Page.
Ca3(PO3)2
Oxidation numbers:
Ca ---- +2
P----x
O---- -2
+2*3 +x*2 - 2*6 = 0
6 + 2x -12 = 0
2x = 6
x = +3
Oxidation number of P is +3.
