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which of the following questions would be answered using concepts from chemistry? a. how do atoms combine to form new substances? b. how much energy was transferred when two cars hit each other? c. how
asked
Jul 6, 2017
Chemistry
high-school
1
answer
5
votes
205k
views
Solving liner system, substitution method 2x-y=23 x-9=-3
asked
Aug 6, 2016
Mathematics
high-school
2
answers
2
votes
94.6k
views
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