bullockarwen
12.03.2021 •
Chemistry
Which two energy transformations are taking place in this toaster?
A. Mechanical energy - chemical energy
B. Electrical energy - electromagnetic energy
C. Electrical energy - thermal energy
D. Chemical energy - mechanical energy.
you must choose two options
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Ответ:
It's letter C
because you need electric energy's electric and thermal energy's heat to toast loaf.
Ответ:
Molten lead bromide
Explanation:
PbBr 2(l), is an electrolyte. During electrolysis: Pb 2+ ions gain electrons at the cathode and become Pb atoms. Br - ions lose electrons at the anode and become Br atoms, which pair up to form Br 2 molecules.