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CaHeK987 [17]
2 years ago
10

Which of the following is always a reactant in a combustion reaction? (5 points)

Chemistry
1 answer:
aleksandr82 [10.1K]2 years ago
4 0

Answer:

A

Explanation:

Combustion reaction always has something hydrocarbon plus oxygen gas which equals to carbon dioxide and water. Always being a reactant in a combustion reaction is oxygen, since reactants are what we start off the reaction with.

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3 0
1 year ago
When chemical, transport, or mechanical work is done by an organism, what happens to the heat generated?
dalvyx [7]

Explanation:

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5 0
3 years ago
Which is a heterogeneous mixture?
Valentin [98]

Answer:

I think no C or D

if wrong correct me plsssssss

Mark me brainliest plsss

Explanation:

December 21 marks the winter solstice in the Northern Hemisphere, but in 2020 the longest night of the year is also going to be a witness to an incredible astronomic event known as the “great conjunction”. ... This rare double planet sighting–or “Great Conjunction”–can be viewed from anywhere around the globe

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