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riadik2000 [5.3K]
4 years ago
9

Your friend makes the statement that, “Water boils at a higher temperature than ethanol.” To which step of the scientific method

does this statement belong?
A. Experiment
B. Observation
C. Theory
D. Scientific Law
Chemistry
1 answer:
deff fn [24]4 years ago
7 0

Explanation:

Experiment because water boils at 100°c and ethanol 80°co

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By the reaction of carbon &amp; oxygen , a mixture of CO &amp;CO2 is obtained. What is the composition by mass of the mixture ob
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M(O₂)=20g
M(O₂)=32.0 g/mol
n(O₂)=20/32.0=0.625 mol

m(C)=12 g
M(C)=12.0 g/mol
n(C)=12/12.0=1.0 mol

   2C     +     O₂      →    2CO
1 mol    0.625 mol        1 mol
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      2CO    +         O₂       →        2CO₂
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n(CO₂)=0.250 mol
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4 0
3 years ago
Which hand is negatively changed?<br><br> A.<br> B.<br> C.<br> D.
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Answer:

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Explanation:

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6 0
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Answer:

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Explanation:

3 0
3 years ago
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