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Digiron [165]
3 years ago
8

Which of the following reactions substitutes one element in a reactant with another to form a product?

Chemistry
2 answers:
Kruka [31]3 years ago
4 0
I believe the answer is A. single-displacement 
Ann [662]3 years ago
3 0
Its A. because it substituting one element with another. If it said its substituting 2 then it would be double replacement
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A. Energy is transferred to different forms
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Answer:

A. Energy is transferred to different forms .

Explanation:

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In this case, we need to consider the law of conservation of mass and energy which states that mass and energy cannot be neither created nor destroyed, just modified; it means we can rule out B. and C. so far.

Moreover, since D. is actually true for combustion reactions because they are used to provide energy in industrial operations, this is not the concern here because a combustion reaction is not considered.

Therefore the correct option is A. Energy is transferred to different forms as the energy provided by Rose is transferred to the pendulum system .

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3 0
3 years ago
Nitrogen dioxide is produced by combustion in an automobile engine. For the following reaction, 0.377 moles of nitrogen monoxide
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Answer:

The amount of NO₂ that can be produced 8.533 g

Explanation:

       According to question

                                2 NO(g) + O₂(g) → 2 NO₂(g)

Given

Moles of nitrogen monoxide = 0.377

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'For NO'=\frac{Mole}{Stoichiometry}=\frac{0.377}{2} =0.1855\\'For O_{2} '=\frac{0.278}{1}= 0.278\\

Since 'NO' is the limiting reagent according to this ratio.

According to equation

         2 moles NO reacts to form 2 moles NO₂

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Base on the properties the substances possess the substance change phase from gas to liquid.

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