A combustion reaction often produces sodium chloride and water true or false

Chemistry

1 answer:

BartSMP [9]3 years ago

4 0

A combustion reaction often produces sodium chloride and water False.

<u>Explanation:</u>

The reaction that takes place between any substance and oxygen can be termed as a combustion. Any substance when they react with oxygen, it will produce a larger quantity of energy. This energy will take the form of heat and light.

Oxygen always act as one the most important reactant in a combustion reaction. A hydrocarbon that is contains hydrogen and carbon with it will be the next reactant of the combustion reaction.Any combustion reaction will produce the carbon dioxide and water as the result of that reaction.

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elena-14-01-66 [18.8K]

Answer:

silicon

Explanation:

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kompoz [17]

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4Na + O2 2Na2O

beks73 [17]

4
N
a
+
O
2
→
2
N
a
2
O
.
By the stoichiometry of this reaction if 5 mol natrium react, then 2.5 mol
N
a
2
O
should result.
Explanation:
The molecular mass of natrium oxide is
61.98

g
⋅
m
o
l
−
1
. If
5

m
o
l
natrium react, then
5
2

m
o
l
×
61.98

g
⋅
m
o
l
−
1

=

154.95

g
natrium oxide should result.
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A sample of gas is observed to effuse through a pourous barrier in 4.98 minutes. Under the same conditions, the same number of m

kogti [31]

Answer:

The molar mass of the unknown gas is $\mathbf{ 51.865 \ g/mol}$

Explanation:

Let assume that the gas is O2 gas

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Under the same conditions;

the same number of moles of an unknown gas requires time t₂ = 6.34 minutes to effuse through the same barrier.

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Graham's Law of Diffusion states that, at a constant temperature and pressure; the rate of diffusion of a gas is inversely proportional to the square root of its density.

i.e

$R \ \alpha \ \dfrac{1}{\sqrt{d}}$