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kolbaska11 [484]
3 years ago
13

To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George appl

ying to the handle?
A. chemical energy


B. frictional energy


C. potential energy


D.mechanical energy
Chemistry
1 answer:
mote1985 [20]3 years ago
4 0

b frictional energy

is the correct answer

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If you had excess aluminum, how many moles of aluminum chloride could be produced from 28.0 g of chlorine gas, Cl2?
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Answer:

Yes chemistry. Try to add then multiply the top. Get the moles and you will find it.

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What mass of sodium chloride (NaCl) forms when 7.5 g of sodium carbonate (Na2CO3) reacts with a dilute solution of hydrochloric
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<u><em> calculation</em></u>

step 1: write the equation  for reaction

Na₂CO₃  + 2HCl → 2 NaCl  +CO₂ +H₂O

Step 2: find the  moles of Na₂CO₃

moles = mass/molar mass

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Step 3: use the  mole ratio to determine the  mole of NaCl

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Step 4:  calculate mass  of NaCl

mass= moles x molar mass

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Explanation:

hope this helps!

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