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2 years ago

Write the complete balanced equation for the reaction between aluminum metal (Al) and oxygen gas (O2).

Chemistry

1 answer:

Arlecino [84]2 years ago

7 0

Your answer is sooo close!!! But I think it is precisely about the same. :)
4AI(s) + 302(g) = 2 AI203(s)

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Energy transformation of a kettle?

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Explanation:

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2 years ago

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What on earth is the oxidation number of N in N2H4?

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N₂H₄ :

N = - 2

H = + 1

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2 years ago

If the volume is decreased from 5.15L to

hichkok12 [17]

Answer:

Increase

Explanation:

Boyle's law states volume and pressure have an inverse relationship.

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3 years ago

Nitrogen gas plus hydrogen gas under pressure and at high temperature turns into ammonia. which of the chemical equations matche

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3 years ago

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Calculate the number of pounds of CO2 released into the atmosphere when a 22.0 gallon tank of gasoline is burned in an automobil

IrinaK [193]

Answer:

391.28771 pounds of carbon-dioxide released into the atmosphere.

Explanation:

Density of the gasoline ,d= 0.692 g/mL

Volume of gasoline in an tanks,V = 22.0 gallons = 83,279.02 mL

Let mass of the gasolin be M

$d=\frac{M}{V}$

M = V × d = 83,279.02 mL × 0.692 g/mL=57,629.081 g

Assume that gasoline is primarily octane (given)

$2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O$

Mass of octane burnt in the tank = M = 57,629.081 g

Moles of octane = $\frac{57,629.081 g}{114.08 g/mol}=505.1637 mol$

According to reaction, 2 moles of octane gives 16 moles of carbon-dioxide.

Then 505.1637 mol of octane will give:

$\frac{16}{2}\times 505.1637 mol=4,041.3100 mol$ of carbon-dioxide

Mass of 4,041.3100 mol of carbon-dioxide:

4,041.3100 mol × 44.01 g/mol = 177,858.05 g

Mass of carbon-dioxide produced in pounds = 391.28771 pounds

391.28771 pounds of carbon-dioxide released into the atmosphe

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3 years ago