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Vinvika [58]
4 years ago
15

Which process releases energy by breaking down glucose and other food molecules in the presence of oxygen?

Chemistry
2 answers:
mezya [45]4 years ago
8 0

Answer:

cellular respiration

Explanation:

you're welcome :)

FinnZ [79.3K]4 years ago
5 0
Cellular respiration

is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen

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If 12 gallons of gasoline cost $34.68, what is the unit price per gallon?
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The answer is $2.89.

Since it’s asking for the unit price of one gallon and you have the total ($34.68 and 12 gallons), you would divide $34.68 from 12, which gives you $2.89.

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In order for a solute to dissolve in a solvent, what must be true?
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The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces
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Answer:

1. NaN₃(s) → Na(s) + 1.5 N₂(g)

2. 79.3g

Explanation:

<em>1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN₃) into solid sodium and gaseous dinitrogen.</em>

NaN₃(s) → Na(s) + 1.5 N₂(g)

<em>2. Suppose 43.0L of dinitrogen gas are produced by this reaction, at a temperature of 13.0°C and pressure of exactly 1atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits.</em>

First, we have to calculate the moles of N₂ from the ideal gas equation.

P.V=n.R.T\\n=\frac{P.V}{R.T} =\frac{1atm.(43.0L)}{(0.08206atm.L/mol.K).286.2K} =1.83mol

The moles of NaN₃ are:

1.83molN_{2}.\frac{1molNaN_{3}}{1.5molN_{2}} =1.22molNaN_{3}

The molar mass of NaN₃ is 65.01 g/mol. The mass of NaN₃ is:

1.22mol.\frac{65.01g}{mol} =79.3g

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