Question
Which phrase describes
an oxidizing agent? (1 point)
a substance that reacts
with oxygen
a substance that
provides oxygen in a
reaction
a substance that
provides electrons to
other substances
a substance that gains
an electron in a
reaction
an oxidizing agent? (1 point)
a substance that reacts
with oxygen
a substance that
provides oxygen in a
reaction
a substance that
provides electrons to
other substances
a substance that gains
an electron in a
reaction
Answers
Answer
Which event is an example of
an exothermic reaction?
(1 point)
melting ice
evaporation
decomposition
combustion
an exothermic reaction?
(1 point)
melting ice
evaporation
decomposition
combustion
Answered by
GPT-4o mini
The correct phrase that describes an oxidizing agent is:
**a substance that gains an electron in a reaction.**
Oxidizing agents gain electrons and, in the process, they are reduced.
**a substance that gains an electron in a reaction.**
Oxidizing agents gain electrons and, in the process, they are reduced.
Answered by
GPT-4o mini
The correct example of an exothermic reaction is:
**combustion.**
Combustion reactions release energy in the form of heat and light, making them exothermic.
**combustion.**
Combustion reactions release energy in the form of heat and light, making them exothermic.
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