3 years ago

Which of the following is a chemical change?

1 answer:

3 0

a). Water is still H₂O after it freezes.

b). Ice is still H₂O after it melts.

c). Wire is still Cu when it's bent.

d). Paper combines with the O₂ in the air, and turns into
a lot of new compounds when it burns.

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A substance freezes at -58c therefore substance melts at ?

Yanka [14]

The freezing point is the same as the melting point.

If it freezes at -58°C, hence the melting point is also <span>-58°C.</span>

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3 years ago

Bro i need help omg.

sergey [27]

Answer:

25.

Explanation:

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A particle that carries a net charge of -41.8 μc is held in a region of constant, uniform electric field. the electric field vec

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The total work done by the electric field on the charge is given by the scalar product between the electric force acting on the charge and the displacement of the charge:
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The bones of the middle ear cause the to vibrate and change the sound into signals.

olga nikolaevna [1]

If it is a true or false question then it is true

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When Jane drives to work, she always places her purse on the passenger’s seat. By the time she gets to work, her purse has falle

madam [21]

Answer:

the vibrations push the purse up and down very fast and gravity pushes the purse down onto the floor

Explanation: does that help

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