3 years ago

Name one factor that determines how much potential energy there is in a roller coaster ride

Chemistry

1 answer:

beks73 [17]3 years ago

8 0

Answer:

How high the hill is

How much the coaster itself weighs

How long the coaster is

Explanation:

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Who hypothesized that electrons orbit around a nucleus? Bohr Greek philosophers Thomson Dalton

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How many moles of O2 are needed to burn 2.56 moles of CH3OH?

lukranit [14]

Answer:

$n_{O_2}=3.84molO_2$

Explanation:

Hello!

In this case, since the combustion reaction of methanol is:

$CH_3OH+\frac{3}{2} O_2\rightarrow CO_2+2H_2O$

In such a way, since there is 1:3/2 mole ratio between methanol and oxygen, we can compute the moles of oxygen that are needed to burn 2.56 moles of methanol as shown below:

$n_{O_2}=2.56molCH_3OH*\frac{\frac{3}{2}molO_2}{1molCH_3OH} \\\\n_{O_2}=3.84molO_2$

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