a) chemical energy
b) by electricity
c)
(i) Light
(ii) thermal transfer
<em>By </em><em>Benjemin</em>
Answer:
2 and 4
Explanation:
The rest of the changes are chemical. 1 has a chemical reaction happen which makes light sticks glow. 3 is because browning the meat actually causes some new compounds to form and cause caramelization.
For 2, the oxygen is simply heating up and expanding which pops the balloon. 4 is just a phase change of water vapor to liquid water.
Answer:
(C) through the atmosphere
Explanation:
Answer:
the answer is A
I made a chart for AP chem if you want to refer to it.
