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NemiM [27]
3 years ago
6

Question 3 of 11

Chemistry
1 answer:
daser333 [38]3 years ago
6 0

Answer:

c

Explanation:

b and d are out, the variables are changed. a would be a repetition, not a replication. c uses the same method and variables with a different control group

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***REMEMBER: There is always the same amount of protons and electrons. :)

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i hope this helps

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4 years ago
If anyone can get this question, 20 points for you!
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