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GaryK [48]
4 years ago
9

elaborate on the difference between a chemical change and a physical change. a) a physical change is irreversible where as a che

mical change is reversible. b) a physical change does form new substances and a chemical change does not break any bonds. c) a physical change rearranges atoms but a chemical change causes a substance to remain the same. d) a physical change does not break any bonds while a chemical change does form new substances.
Physics
2 answers:
Ulleksa [173]4 years ago
6 0

remember the difference in effect between slicing bread and toasting bread, but the option is d

lozanna [386]4 years ago
4 0
I think the correct answer from the choices listed above is option D. The difference between a chemical change and a physical change is lies in the fact that a physical change does not break any bonds while a chemical change does form new substances. Hope this answers the question.
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Answer:

I am not sure really.

Explanation:

I just don't know

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Read 2 more answers
A food processor draws 8.47 A of current when connected to a potential difference of 110 V.
Andreyy89

Answer:

27.95[kW*min]

Explanation:

We must remember that the power can be determined by the product of the current by the voltage.

P=V*I

where:

P = power [W]

V = voltage [volt]

I = amperage [Amp]

Now replacing:

P=110*8.47\\P=931.7[W]

Now the energy consumed can be obtained mediate the multiplication of the power by the amount of time in operation, we must obtain an amount in Kw per hour [kW-min]

Energy = 931.7[kW]*30[days]*10[\frac{min}{1day} ]=279510[W*min]or 27.95[kW*min]

3 0
3 years ago
Please explain what is a Energy is
professor190 [17]

Answer:

<h2><u>The capacity or power to do work/ The ability to do work. </u></h2>

Explanation:

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I hope this help:)

8 0
2 years ago
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Temka [501]

Answer:

1m/s^2

Explanation:

Mass of block=10 kg

Applied horizontal force =F=20 N

Friction force=f=10 N

We have to find the acceleration of block.

Net force=Applied horizontal force-friction force

ma=F-f

Where F= Horizontal force

f=Friction force

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a=\frac{10}{10}=1 m/s^2

Hence, the acceleration of the block=1m/s^2

4 0
3 years ago
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