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
The equation of the function is assumed to be a straight line is of the form,
, where
are the gradient and the y intercept respectively.
The gradient is computed using the formula for the gradient, i.e
.
The equation of the line is,
The equation of the function is ,
.
The value of the x-coordinate when the y coordinate is 0 is found as shown below.
.
so the x-coordinate is 1.
109.5 degrees should be the answer you are looking for :D
A molecule of ammonia clearly contains 1 nitrogen (N) atom and 3 of the hydrogen (H) atoms combined by sharing of the valence electrons of the atoms. Ammonia is a colorless gas and is usually characterized by its pungent odor.
Answer:
Mass (m) = 1600 kilogram
Explanation:
m = V × ρ
= 800 cubic meter × 2 kilogram/cubic meter
= 1600 kilogram