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Ivanshal [37]
3 years ago
15

What is the definition for chemical change

Physics
2 answers:
katovenus [111]3 years ago
8 0
Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical<span> substances. At the molecular level, </span>chemical change <span>involves making or breaking of bonds between atoms.</span>
Leni [432]3 years ago
4 0
It is a change that results in a new chemical substance.
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You drive a car 1600 ft to the east, then 2500 ft to the north. The trip took 2.5 minutes. What was the magnitude of your averag
elena-14-01-66 [18.8K]

Answer:

Velocity=6.03m/s

Explanation:

Given data

Time t=2.5 minutes=150 seconds

Distance A=1600 ft=487.68 m........east

Distance B=2500 ft=762m ........north

To find

Average velocity

Solution

First we need to find the resultant distance magnitude.To find that we apply Pythagorean theorem to find hypotenuse

So

A^{2}+B^{2}=C^{2}\\  C=\sqrt{A^{2}+B^{2}}\\ C=\sqrt{(487.68m)^{2}+(762m)^{2}}\\ C=904.7m

Velocity=\frac{Distance}{Time}\\Velocity=\frac{904.7m}{150s}\\Velocity=6.03m/s

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3 years ago
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adoni [48]

Answer:

The answer is: True.

Explanation:

If free electrons or other substances could travel through the electrolyte, they would disrupt the chemical reaction. Whether they combine at anode or cathode, together hydrogen and oxygen form water, which drains from the cell. As long as a fuel cell is supplied with hydrogen and oxygen, it will generate electricity.

(Credit: Google)

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3 years ago
What is the primary outgoing radiation put off by the sun?
ira [324]

I really don’t know but I think it’s D

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3 years ago
Light bending at a boundary is caused by differences in the speed of light in different materials. The greater the difference in
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Answer:

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2 years ago
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. find the minimum en
shusha [124]
The energy carried by the incident light is
E=hf
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4 0
3 years ago
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