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Ymorist [56]
3 years ago
15

How could you increase the potential energy of an apple you were holding?

Chemistry
1 answer:
Slav-nsk [51]3 years ago
5 0
If you're holding the apple at your waist, lift it to your mouth.
Potential energy relative to any level is proportional to its height 
above that level.  Increase that height, and you've increased the 
potential energy.
Since energy is conserved ... it never magically appears or 
disappears ... you need to tell where that extra energy for the 
apple came from.
It's exactly the work you did ... the force of your muscles acting 
through the distance you raised the apple ... that became the 
additional potential energy that the apple gained.
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3 years ago
How many moles of CO2 must dissolve in excess water to produce 12 moles of<br><br> H2CO3?
vodka [1.7K]

Answer:

12 moles of CO₂.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

CO₂ + H₂O —> H₂CO₃

From the balanced equation above,

1 mole of CO₂ dissolves in water to produce 1 mole of H₂CO₃.

Finally, we shall determine the number of moles of CO₂ that will dissolve in water to produce 12 moles of H₂CO₃. This can be obtained as follow:

From the balanced equation above,

1 mole of CO₂ dissolves in water to produce 1 mole of H₂CO₃.

Therefore, 12 moles of CO₂ will also dissolve in water to produce 12 moles of H₂CO₃.

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3 0
3 years ago
Which is the balanced single displacement reaction between Aluminum (Al3+) and Copper Sulfate (Cu2+(SO4)2-)
Aliun [14]

Answer:

The balanced single displacement reaction between aluminum and copper sulphate is as follows.

2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)

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Hence, the balanced chemical reaction is as follows.

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Al\rightarrow Al^{3+}+3e^{-}

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4 0
3 years ago
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8 0
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Then multiply the doses with the available drug. It would be:
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