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ICE Princess25 [194]
3 years ago
15

Hlo good evening everyone​

Chemistry
2 answers:
goblinko [34]3 years ago
4 0

Answer:

hi

Explanation:

inna [77]3 years ago
4 0

Hello good evening' but for me it's a good night

Explanation:

Anyway, thank you for the points have a great day!

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The enthalpy change of formation indicate how much energy the 1 mole of the product (H2O) has relative to the elemental reactants (H2 and O2).  In other words, the "lost" energy equals the heat/energy released. 

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A fuel tank holds 22.3 gallons of gasoline. If the density is 0.8206 g/mL, what is the mass in kilograms of gasoline in a full t
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Answer:

m=69.3kg

Explanation:

Hello!

In this case, since the density is computed by dividing the mass of the substance by its occupied volume (d=m/V), we first need to realize that 0.8206 g/mL is the same to 0.8206 kg/L, which means we first need to compute the volume in L:

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Then, solving for the mass in d=m/V, we get m=d*V and therefore the mass of gasoline in that full tank turns out:

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Best regards!

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