B.
Carbon was oxidised as its oxidation state increases from 0 (In C) to +2 (In CO).
Hydrogen was reduced as its oxidation state decreases from +1 (In H2O) to 0 (In H2).
Am i right? Hope so HAHAH:)
Answer:
-149.0K
Explanation:
Charles's law states that the volume of a gas is directly proportional to the absolute temperature under constant pressure.
The equation is:
V1/T1 = V2/T2
<em>Where V1 is initial volume = 6.00L</em>
<em>T1 is absolute initial temperature = 25.0°C + 273 = 298K</em>
<em>V2 is final volume = 2.50L</em>
<em>T2 is our incognite</em>
<em />
Replacing:
6.00L/298K = 2.50L/T2
T2 = 2.50L * 298K / 6.00L
T2 = 124.17K
The temperature is 124.17K - 273.15K =
<h3>-149.0K</h3>
<em />
Kinetic energy:<span>energy that a body possesses by virtue of being in motion.
heat:</span><span>high temperature.</span>
Answer:
Results of this research indicated woody riparian vegetation reduced the susceptibility of stream bank soils to erosion by fluvial entrainment. ... In addition to reinforcing the stream banks, riparian vegetation also affected soil moisture and altered the local microclimate.
Explanation:
basically it helps the ground to stay in place.
Answer:
C4H8O4
Explanation:
To determine the molecular formula, first, let us obtain the empirical formula. This is illustrated below:
From the question given, we obtained the following information:
C = 45.45%
H = 6.12%
O = 48.44%
Divide the above by their molar mass
C = 45.45/12 = 3.7875
H = 6.12/1 = 6.12
O = 48.44/16 = 3.0275
Divide by the smallest
C = 3.7875/3.0275 = 1
H = 6.12/3.0275 = 2
O = 3.0275/3.0275 = 1
The empirical formula is CH2O
The molecular formula is given by [CH2O]n
[CH2O]n = 132.12
[12 + (2x1) + 16]n = 132.12
30n = 132.12
Divide both side by the coefficient of n i.e 30
n = 132.12/30 = 4
The molecular formula is [CH2O]n = [CH2O]4 = C4H8O4