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Marrrta [24]
3 years ago
12

What is the potential energy of a molecule?

Chemistry
1 answer:
inysia [295]3 years ago
5 0

Answer:

D) Energy stored in molecular bonds

Explanation:

Hope this helps you

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The following physical constants are for water, H2O.
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Answer:

Q\approx6.4~kJ

Explanation:

Quantity of heat required by 10 gram of ice initially warm it from -5°C to 0°C:

Q_1=m.C_s.\Delta T

here;

mass, m = 10 g

specific heat capacity of ice, C_s=2.09~J.g^{-1}.^{\circ}C^{-1}

change in temperature, \Delta T=(5-0)=5^{o}C

Q_1=10\times2.09\times 5

Q_1=104.5~J

Amount of heat required to melt the ice at 0°C:

Q_2=m.\Delta H_{fus}

where, \Delta H_{fus}=6020~J/mol

we know that no. of moles is = (wt. in gram) \div (molecular mass)

Q_2=\frac{10}{18} \times 6020

Q_2=3344.44~J

Now, the heat required to bring the water to 70°C from 0°C:

Q_3=m.C_L.\Delta T

specific heat of water, C_L=4.18~J/g/^oC

change in temperature, \Delta T=(70-0)=70^oC

Q_3=10\times 4.18\times 70

Q_3=2926~J

Therefore the total heat required to warm 10.0 grams of ice at -5.0°C to a temperature of 70.0°C:

Q=Q_1+Q_2+Q_3

Q=104.5+3344.44+2926

Q=6374.94~J

Q\approx6.4~kJ

8 0
3 years ago
In what main way is separating the components of a mixture different from separating the components of a compound?
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Explanation:

Compounds are the species in which all the components react chemically to form a molecule which has a different property from the constituting elements.

On the other hand, mixture are the species in which the components do not react chemically and the original properties of the components are not lost.

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Elements found on the right side of the periodic table are considered ___________.
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Answer:

nonmetals

Explanation:

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In ridge push, the mantle wells upward because of the convection and elevates the edges of spreading oceanic plates. Because these plates are higher at the spreading center, they are forced downhill due to <em>gravity</em> and eventually flatten out to the ocean floor.

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