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posledela
3 years ago
8

A drain cleaner consists of sodium hydroxide and aluminum. When the drain cleaner is added to water, bubbles of hydrogen are pro

duced, and the solution becomes very hot. Which of these best describes what happens when the cleaner is added to water?
A. An endothermic chemical reaction
B. An exothermic chemical reaction
C. An endothermic physical reaction
D. An exothermic physical reaction
Biology
1 answer:
Nana76 [90]3 years ago
7 0
B. An exothermic chemical reaction
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