Answer: I believe the correct answer would be A.
Answer:
Dont use alot of points
Explanation:
people scam like me and ay the wrong answer and get the points :|
Nuclear reactions happen inside the nucleus,so it changes the protons and neutrons
The answer is C
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The answer is A.
Pure substance is either an element or a compound, which elements in compund is chemically combined together. They cannot be separated by physical methods such as filtration or evaporation. Compounds can only be separated by chemical methods, which include using electricity (electrolysis) or applying heat.