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garik1379 [7]
2 years ago
9

What is the Law of Conservation of energy?

Chemistry
1 answer:
ladessa [460]2 years ago
3 0

Answer:

<u>~</u><u>Law of Conservation of </u><u>energy~</u>

The law of conservation of energy states that energy can neither be created nor destroyed, only energy can be converted from one form to another.

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Molecules of sugar are attracted to each other and form crystals. If you place sugar in water, the crystals break apart, but the
suter [353]

Answer:

Explanation:

So here's the thing . Sugar molecule is a molecular solid . It a relatively weak molecule

We all know the formula of glucose ( which is a sugar type molecule ) which is C12 H22 O 11 . This is basically bonded together by dipole dipole forces ( remember that this force of attraction is weak ) .on the other hand you have the solution ( which is usually water) .water is held by strong attraction forces known as hydrogen bonding .since this type of bonding is greater than dipole dipole forces .therefore when glucose is dropped in water . water is easily able to obercome the forces that are keeping the glucose molecule intact . therefore the molecule dissolves and breaks into pieces. Hope this helps

3 0
3 years ago
Match each renewable energy source with the correct description. solar cell converts sunlight into electricity geothermal energy
natka813 [3]

Answer:

Explanation:

solar cell - converts sunlight into electricity

geothermal energy - heat produced within the Earth​

wave energy - turns turbines along coastlines

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7 0
2 years ago
Read 2 more answers
A first-order reaction (A → B) has a half-life of 25 minutes. If the initial concentration of A is 0.900 M, what is the concentr
Oksanka [162]

Answer:

0.6749 M is the concentration of B after 50 minutes.

Explanation:

A → B

Half life of the reaction = t_{1/2}=25 minutes

Rate constant of the reaction = k

For first order reaction, half life and half life are related by:

k=\frac{0.693}{t_{1/2}}

k=\frac{0.693}{25 min}=0.02772 min^{-1}

Initial concentration of A = [A]_o=0.900 M

Final concentration of A after 50 minutes = [A]=?

t = 50 minute

[A]=[A]_o\times e^{-kt}

[A]=0.900 M\times e^{-0.02772 min^{-1}\times 50 minutes}

[A] = 0.2251 M

The concentration of A after 50 minutes = 0.2251 M

The concentration of B after 50 minutes = 0.900 M - 0.2251 M = 0.6749 M

0.6749 M is the concentration of B after 50 minutes.

7 0
3 years ago
which of the following is a product formed whrb NO2 and H2O react together A O2 B HNO3 C H2 D P(OH)2
marshall27 [118]
The answer to your question is HNO3
8 0
3 years ago
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Will give free brainlist !! :)
luda_lava [24]

Answer:

C is the correct answer

Explanation:

7 0
3 years ago
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