Fill in the blanks.
Experiment and ___________ are the two important basics of chemistry.
________ fan are fitted near the roof of the walls to expel _________ gases.
We observe chemical processes to observe ___________.
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Fill in the blanks.
Experiment and ___________ are the two important basics of chemistry.
________ fan are fitted near the roof of the walls to expel _________ gases.
We observe chemical processes to observe ___________.
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Answer:
Expentions, Many , the , the experiments..
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