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nirvana33 [79]
1 year ago
5

suppose you wanted to compare two different stain removers to learn which one was better at removing food stains from clothing.

In your test, which variable would you need to control ?
Chemistry
1 answer:
Dovator [93]1 year ago
8 0

Answer:

The amount/type of stain

Explanation:

You would want to ensure that the stain was the same in both samples.  

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