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Fittoniya [83]
3 years ago
13

write the balanced equation for the reaction that occurs when butane undergoes combustionWhat is the coefficient of oxygen in th

e balanced equation?
Chemistry
1 answer:
love history [14]3 years ago
5 0

Answer:

2C4H10 + 13O2 ----> 4CO2 + 10H2O

The coefficient of oxygen in the balanced equation is 13

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Chemical reactions will occur if the products are less stable than the reactants. true or false
rusak2 [61]
For the answer to the question above, Chemical reactions will occur if the products are less stable than the reactants

<span>So, the answer to your question is True.
I hope my answer helped you. Feel free to ask more questions. Have a nice day!</span>
8 0
3 years ago
Please answer this question ASAP
Nezavi [6.7K]

Answer:

put a test tube over the opening, remove it and quickly put a lit splint near the mout or in the tube. if you hear a squeaky pop it is hydrogen.

Explanation:

hydrogen ignites in air.

4 0
3 years ago
As with other ionic compounds, potassium bromate, KBrO3, dissociates into ions when it dissolves in water. If 13.8 g of KBrO3 is
chubhunter [2.5K]

Answer:

ΔH of dissociation is 38,0 kJ/mol

Explanation:

The dissociation reaction of KBrO₃ is:

<em>KBrO₃ → K⁺ + BrO₃⁻ </em>

This dissolution consume heat that is evidenced with the decrease in water temperature.

The heat consumed is:

q = CΔTm

Where C is specific heat of water (4,186 J/mol°C)

ΔT is the temperature changing (18,0°C - 13,0°C = 5,0°C)

And m is mass of water (150,0 mL ≈ 150,0 g)

Replacing, heat consumed is:

q = 3139,5 J ≡ 3,14 kJ

13,8 g of KBrO₃ are:

13,8 g×(1mol/167g) = 0,0826 moles

Thus, ΔH of dissociation is:

3,14kJ / 0,0826mol = <em>38,0 kJ/mol</em>

<em></em>

I hope it helps!

3 0
3 years ago
The molar heat of vaporization of hydrogen fluoride (HF) is 31.18 kJ/mol. How much heat is released when 100.0 g HF condenses at
mash [69]

the answer is -155.8


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3 years ago
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What can a earthquake do
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A or D I think but go with A it makes more since
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2 years ago
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