AnswersISP ONLY Chemistry S1 Q3000XXLab: Physical and Chemical ChangesQuestion 1
1
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Lab: Physical and Chemical Changes

Question 1 • ISP ONLY: Chemistry S1 Q3000XX

Which reactions performed in the experiment involved chemical changes?

Answer
A
crushing calcium carbonate
B
mixing calcium carbonate and HCl
C
boiling water
D
heating copper (II) sulfate pentahydrate
E
separating iron filing and sulfur
F
mixing potassium iodide and lead nitrate
G
combining magnesium and HCl
H
burning the candle
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