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Brums [2.3K]
3 years ago
9

Jodie is studying the sleeping habits of various types of animals. She wants to know how long each type of animal sleeps during

the day.
Jodie puts each of the animals in a cage with food, water, and light. However, she cannot stay to watch the animals all day.

Which of the following tools would be most helpful to Jodie's experiment?
A.
a tape recorder
B.
a video camera
C.
a metric ruler
D.
a triple beam balance
Chemistry
1 answer:
Nadya [2.5K]3 years ago
7 0
I’m thinking a video camera. Since it says “to watch,” a video camera would be able to record what is happening so she can rewatch it.

Hope this helps!
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Answer:

A. 3.7 x 10⁻³

Explanation:

In the beginning of the reaction there are 0.200 moles of reactant. After 25 minutes, remain 0.108 moles. That means the moles that wer descomposed are:

0.200 moles - 0.108 moles = 0.092 moles of reactant were descomposed.

That descomposition occurs in 25 minutes. The average rate of descomposition in moles / minute are:

0.092 moles Methyl isonitrile / 25 minutes = 3.7x10⁻³ mol/min.

Right option is:

<h3>A. 3.7 x 10⁻³</h3>
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4 years ago
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Inessa05 [86]

Answer:

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Explanation:

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