Answer:
+5
Explanation:
The oxidation number of phosphorus can be obtained as follows:
H4P2O7 = 0
4(+1) + 2P + 7(—2) = 0
4 + 2P —14 = 0
Collect like terms
2P = 14 — 4
2P = 10
Divide both side by 2
P = 10/2
P = +5
The oxidation number of phosphorus is +5
Answer:
B. apply a force in a direction that is different than the direction of the force applied to the machine
Answer:I think it’s mechanical energy
Explanation:
Pretty sure the answer is c but not completely positive !
