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control variables?

I'm not sure what they are, can someone please give me a few examples of what they could be?

thanks

2007-08-04 02:55:52 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

temperature
pressure
weight of products
weight of reactants &

2007-08-04 03:29:09 · answer #1 · answered by maussy 7 · 0⤊ 0⤋

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