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Vinil7 [7]
3 years ago
12

A rabbit takes in energy by consuming pine needles, clover, leafy weeds, etc. the rabbits use the majority of this energy to car

ry out its life activities if a wolf eats the rabbits what percentage of energy is lost between the topic levels? A. 10% B. 90% C. 20% D. 80%
Chemistry
1 answer:
alekssr [168]3 years ago
4 0
90% of energy is lost. only 10% is left.

therefore the answer is B. 90%
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An unknown gas Q requires 2.67 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the
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Answer:

The correct answer is 199.66 grams per mole.

Explanation:

Based on law of effusion given by Graham, a gas rate of effusion is contrariwise proportionate to the square root of molecular mass, that is, rate of effusion of gas is inversely proportional to the square root of mass. Therefore,  

R1/R2 = √ M2/√ M1

Here rate is the rate of effusion of the gas expressed in terms of number of mole per uni time or volume, and M is the molecular mass of the gas.  

Rate Q/Rate N2 = √M of N2/ √M of Q

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Now putting the values we get,  

rate of N2/2.67/rate of N2 = √28/ √M of Q

√M of Q = √ 28 × 2.67

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3 years ago
The side chains of amino acids may contain..
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What’s the SI unit of the amount of isopropyl alcohol in a beaker?
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Global warming stresses ecosystems through temperature rises, water shortages, increased fire threats, drought, weed and pest invasions, intense storm damage and salt invasion, just to name a few.

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2 years ago
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