Chemistry
Chemistry, 06.05.2021 01:00, loveeegabbie7071

3. A log was burned in a fireplace. Light, heat, and sound were given off as the log burned (1 point) and crackled. After the fire went out, the log had been broken down into coals and ashes.

What type of change occurred and what evidence supports this type of change?

O A chemical change occurred because the atoms were rearranged into new compounds.
O A physical change occurred because the burning of the substance produced sound waves.
O A chemical change occurred because only the shapes and sizes of the particles were changed.
O A physical change occurred because the new substances can be changed back into the original substances.

answer
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 17:30, puppy4151
One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms
Answers: 1
image
Chemistry, 22.06.2019 00:00, rileyallen4186pd5tgy
Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.
Answers: 1
image
Chemistry, 22.06.2019 09:50, Amandachavez94
Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange
Answers: 1
image
Chemistry, 22.06.2019 13:20, drea445
What natural processes produce large quantities of co2
Answers: 1
Do you know the correct answer?
3. A log was burned in a fireplace. Light, heat, and sound were given off as the log burned (1 point...

Questions in other subjects:

Konu
Mathematics, 22.03.2021 18:10