measures the amounts of both carbon dioxide and water produced which one of the following is true
this experiemnt is well controlled because the masses of the substance A and products are varied
expeiment is unconrolled becuse 2 different masses of substance A are used
is uncontroled because 2 gaseous products are measured
is well controlled because only the mass of the substance A is varied
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According to given question
2nd statement is true because "experiment is uncontrolled because 2 different mass of substance A are used"
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