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stiks02 [169]
3 years ago
5

Which best describes a chemical reaction? the rearrangement of atoms by breaking and reforming chemical bonds a reaction that ab

sorbs heat from the surroundings a reaction that releases heat to the surroundings the rearrangement of molecules based on temperature and pressure
Physics
2 answers:
Ede4ka [16]3 years ago
5 0

Answer:

A

Explanation:

Alexxx [7]3 years ago
4 0

Answer:

A) the rearrangement of atoms by breaking and reforming chemical bonds

Explanation:

Its right on edge

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BlackZzzverrR [31]

Answer:

poor, too precise

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Explanation:

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Why does a green leaf look green in our eyes
mamaluj [8]
They look green because of the “special pair” of chlorophyll molecules.
3 0
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Which of the following describes the moon’s motion around Earth?
Mamont248 [21]

Answer:

i think B?

Explanation:

6 0
3 years ago
Which of the following is NOT true of fusion?
Gekata [30.6K]
C., used in power plants I think. 
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4 years ago
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A 0.245 kg ball is thrown straight up from 2.07 m above the ground. Its initial vertical speed is 8.00 m/s. A short time later,
iris [78.8K]

Answer:

The work done by gravity is 4.975 \: Joules

Explanation:

The data given in the question is :

Mass is 0.245 kg

Height from ground is 2.07 m

As we know , the work done is state function , it depends on initial and final position not on the path followed.

So, work done by gravity = change in potential energy

Work done = Initial potential energy - final potential energy

Insert values from question

Work done = mass \times gravity \times (change \: in \: height)

Work done = 0.245 kg \times 9.81 m/s^{2} \times 2.07 m

So, work done = 4.975 Joules

Hence the work done by gravity is 4.975 \: Joules

3 0
4 years ago
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