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Maurinko [17]
3 years ago
11

what is the main difference between a substance going through a physical change and one going through a chemical ?

Physics
2 answers:
Nata [24]3 years ago
4 0

Answer: <em>Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. </em><u><em>Chemical changes are also known as chemical reactions.</em></u>

Ainat [17]3 years ago
3 0

Answer: Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

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What of the following is the mathematical form of boyles law?
viva [34]

Answer:

C

Explanation:

V=1/p

By means of cross multiplication so by that we will have pv=1 which also implies p1v1=p2v2 coz boyles law states that the volume of a given mass of gas is inversely proportional to pressure provided that the temperature in kelvin remains constant

7 0
3 years ago
An electric radiator consumes 1500 W
vampirchik [111]

Answer:

Current = 6.82 A

Explanation:

Given the following data;

Power = 1500 Watts.

Voltage = 220 Volts.

To find the current;

Power = current * voltage

Substituting into the equation, we have;

1500 = current * 220

Current = 1500/220

Current = 6.82 Amperes.

Therefore, the current that traverses it is 6.82 Amperes.

8 0
3 years ago
You want to reduce your energy bills.
aleksandr82 [10.1K]

Answer:

A. 100 Watts

B. 12 Watts

C. the first bulb

Explanation:

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B. Another formula for power is Current * Voltage

0.05*240 = 12W

6 0
3 years ago
What are the difference between convergent, divergent, and transform?
pashok25 [27]
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7 0
4 years ago
Why does a stationary electromagnet attached to an AC source induce current in a wire coil?
lora16 [44]
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That's all I know
4 0
3 years ago
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