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kogti [31]
3 years ago
5

Can u pls help me with this question ​

Chemistry
1 answer:
erastova [34]3 years ago
6 0
The answer of the question is d
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Consider the combustion of octane (C8H18)
sesenic [268]
The balanced equation for the above reaction is as follows;
2C₈H₁₈ + 25O₂ --->  16CO₂  + 18H₂O
stoichiometry of octane to CO₂ is 2:16
number of C₈H₁₈ moles reacted - 191.6 g / 114 g/mol = 1.68 mol
when 2 mol of octane reacts it forms 16 mol of CO₂
therefore when 1.68 mol of octane reacts - it forms 16/2 x 1.68 = 13.45 mol of CO₂
number of CO₂ moles formed - 13.45 mol
therefore mass of CO₂ formed - 13.45 mol x 44 g/mol = 591.8 g
 mass of CO₂ formed is 591.8 g
3 0
3 years ago
Describe happens when you move any atom toward the positive nuclear charge.
bekas [8.4K]

Answer:

Across a period, effective nuclear charge increases as electron shielding remains constant. A higher effective nuclear charge causes greater attractions to the electrons, pulling the electron cloud closer to the nucleus which results in a smaller atomic radius. ... This results in a larger atomic radius.

Explanation:

Now lets d8

5 0
3 years ago
Which statement accurately describes nonrenewable energy sources?
suter [353]

Answer:

a resource that cannot be replenished in a short period of time.

Explanation:

Nonrenewable energy sources take thousands to millions of years to replenish. hence the "nonrenewable".

5 0
3 years ago
Choose all the answers that apply.
Anni [7]

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I believe it's the lowest portion of the atmosphere

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3 years ago
Naming compounding<br> N2O
solniwko [45]

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Nitrogenous oxide/ nitrogen oxide

Explanation:

N2O is nitrogen oxide

6 0
3 years ago
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