Which one is physical change?
a)Mixing BaSO4 + NaCl b) Mixing of Nh3+ HCl
c) Burning magnesium in air d) Adding NaCl to water
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Answers
Answered by
6
Answer:
Adding Nacl in water because Nacl is salt and when salt is dissolved in water it can be taken out from water
Answered by
7
Answer:
option d is the right answer
Explanation:
because here no any chemical reaction take place
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