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lisabon 2012 [21]
2 years ago
12

Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?

Chemistry
2 answers:
BaLLatris [955]2 years ago
8 0
C the energy in her arms decreases. if you think about it, after you push something your arm will slow down during the push even if it is something that is lightweight. it causes you to exert more energy which would decrease the amount left in your arm.
Kipish [7]2 years ago
5 0

Answer:

c the energy in her arn decrease

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1 year ago
The osmotic pressure of a solution formed by dissolving 75.0 mg of aspirin (c9h8o4) in 0.250 l of water at 25 °c is ________ atm
Igoryamba

Answer is: the osmotic pressure of aqueous solution of aspirin is 0.0407 atm.

m(C₉H₈O₄) = 75 mg ÷ 1000 mg/g = 0.075 g.

n(C₉H₈O₄) = 0.075 g ÷ 180.16 g/mol.

n(C₉H₈O₄) = 0.000416 mol.

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c(C₉H₈O₄) = 0.00167 M; concentration of solution.

T(C₉H₈O₄) = 25°C = 298.15 K; temperature in Kelvins.

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π = c(C₉H₈O₄) • T(C₉H₈O₄) • R.

π = 0.00167 mol/L • 298.15 K • 0.08206 L•atm/mol•K.

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3 0
3 years ago
How many different elements are involved in the reaction shown? Record the answer in the grid. Plz help :))
Damm [24]

Answer:

It would be to the fourth power

Explanation:

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Explanation:

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