2 years ago

During a chemical reaction ____ is never created or destroyed

1 answer:

7 0

Answer:

Matter

Explanation:

The Law of Conservation of Mass

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Jlenok [28]

Answer:

Second one

Explanation:

I think it's the second cause there's no energy w/o heat. So it's the second.

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3 years ago

tensa zangetsu [6.8K]

What is your question about it?

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3 years ago

Elina [12.6K]

Chlorophyll captures the sun's energy and is used as energy to complete the photosynthesis process

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3 years ago

dezoksy [38]

Answer: The $R_f$ value is 0.664

Explanation:

Distance travelled by solvent front = (7.7-1.45)cm = 6.25 cm

Distance travelled by unknown = (5.6-1.45) cm = 4.15 cm

The retention factor or the $R_f$ value is defined as the ratio of distance traveled by the unknown to the distance traveled by the solvent front.

$R_f=\frac{\text {distance travelled by unknown}}{\text {distance travelled by solvent}}$

$R_f=\frac{4.15}{6.25}=0.664$

Thus the $R_f$ value is 0.664

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3 years ago

gizmo_the_mogwai [7]

Permeable materials for what

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3 years ago