Q1. State true or false. If false rectify the statement.
a. When a chemical reaction occurs energy is usually given in or taken out________________ __________________________________________________________________________
b. When a chemical reaction takes place atoms and molecules remain the same,_____________
c.
______________________________________________________________________________
d. The number of each kind of atom before and after the reaction are equal____________________
Answers
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Answer:
a.true
b.false
c.true
d.false
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