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Anestetic [448]

3 years ago

14

I need help with this guys

1 answer:

Flura [38]3 years ago

5 0

I have no idea I’m answering this because I need to ask more questions

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What do you notice about the relationship between the force strength and the size of the velocity change?

ella [17]

Answer:

a mass is constant during -free-weight training,a greater impulse will result in greater velocity.therefore as a generation of force greater than weight of the resistance increases.

4 0

3 years ago

1. (a) Write the two electrochemical half reactions for ethanol (C2H5OH) direct electrochemical conversion in a fuel cell with a

Natalka [10]

Answer:

(a) Two electrochemical half reactions for ethanol $(C_{2}H_{5}OH)$ is written below

$C_{2}H_{5} + 60$ ⇒ $2CO_{2} + 3H_{2}O + 12e^{-} (anode)$

$3O_{2} + 12e^{-}$ ⇒ $60^{=}$ $(Cathode)$

(b) The direct oxidation of the fuel will occur in a solid oxide fuel cell but we have to compete with other sets of chemical electrochemical reaction such as water-gas-shift reaction

$CO + H_{2}O$ ⇆ $CO_{2} + H_{2}(WGSR)$

(c) The electrochemical half reaction that could convert ethanol directly into a fuel cell that conducts hydrogen ions is shown below

$C_{2}H_{5}OH + 3H_{2}O$ ⇒ $2CO_{2} + 12H^{+} + 12e^{-} (anode)$

$3O_{2} + 12H^{+} + 12e^{-} - 6H_{2}O (Cathode)$

$C_{2} H_{5} OH + 3O_{2}$ ⇒ $3H_{2}O + 2CO_{2}$

(d) The half reactions that would be required are shown below

$C_{2}H_{5} OH + 12OH^{-}$ ⇒ $CO_{2} + 9H_{2}O + 12e^{-} (anode)$

$3O_{2} + 6H_{2}O + 12e^{-}$ ⇒ $12OH^{-} (Cathode)$

$C_{2}H_{5}OH + 3O_{2}$ ⇒ $3H_{2}O + 2CO_{2}$

8 0

4 years ago

What other elements could bond with Nitrogen to make it more stable?

TEA [102]

Answer:

hi

Explanation:

3 0

3 years ago

Help on 2 and 3 due tomorrow pls help

Luda [366]

Answer:

2

b= they are grouped differently, but all the atoms are still there.

4 0

3 years ago

Can someone help me please?

Vlad1618 [11]

Answer:

I did this already

................

5 0

3 years ago