terry heats 2 different masses of substance A to different temperatures and

label Chemistry
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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

Oct 3rd, 2015

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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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Sep 20th, 2015

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Oct 3rd, 2015
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Oct 3rd, 2015
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