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Mnenie [13.5K]
3 years ago
9

James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air conditione

d rooms. He then measured the growth of the pea plants after a week. In this experiment sunlight is a(n) ____.
A. independent variable

B. Constant

C. Dependent variable

D. Control
Chemistry
2 answers:
MariettaO [177]3 years ago
4 0
<span>C. Dependent variable  without the sunlight he could not preform his experiment because if he where to put both in the sunlight the sunlight would then become control but it could never become independent </span>
Umnica [9.8K]3 years ago
3 0

Answer:

independent variable

Explanation:

this is the correct answer

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exis [7]

Answer:

3 water molecules

Explanation:

The molar ratio between CuSO₄ and H₂O needs to be calculated.

The mass of water that was removed by heating is calculated, then converted to moles. The molecular weight of water is 18.02g/mol.

(8.97 g - 6.57 g) = 2.22 g H₂O

(2.22 g)/(18.02g/mol) = 0.1232 mol H₂O

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(6.57 g)/(159.609 g/mol) = 0.04116 mol CuSO₄

Now the molar ratio between CuSO₄ and H₂O can be calculated:

0.1232 mol H₂O ÷ 0.04116 mol CuSO₄ = 3 H₂O / CuSO₄

4 0
3 years ago
Acetyl-CoA labeled with 14C in both of its acetate carbon atoms is incubated with unlabeled oxaloacetate and a crude tissue prep
Bumek [7]

Answer:

a.all four carbon atoms.

Explanation:

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TEA [102]

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Explanation:

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3 years ago
If the % acetic acid listed on a vinegar bottle is 4%, what is the implied uncertainty of the acetic acid concentration
Tom [10]

Answer:

This question appears incomplete

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