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3 years ago

The exhaust from car engines spreads throughout our atmosphere and adds to pollution. What is this an example of?

2 answers:

Rudiy273 years ago

7 0

Answer: When exhaust from car engines spreads throughout our atmosphere and adds to pollution then it is an example of increase in entropy.

Explanation:

A degree of randomness in the molecules of a substance is called entropy.

When exhaust from car engines spreads throughout our atmosphere then it means the molecules are moving at a faster speed due to which they spread into the atmosphere rapidly.

This means that the entropy of exhaust is increasing.

Thus, we can conclude that when exhaust from car engines spreads throughout our atmosphere and adds to pollution then it is an example of increase in entropy.

kykrilka [37]3 years ago

4 0

An increase in entropy

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Calculate the mass in grams of each sample.<br> 4.88x10^20 H2O2 molecules

AleksAgata [21]

4.88x10^20 H2O2 molecules

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4 years ago

true or false: for genetic engineering the specific traits of a given organism are located on the DNA sequence of the chromosome

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True, moving genes from a chromosome of one organism to a chromosome of a different organism.

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3 years ago

Air is made up of different gases, such as oxygen, nitrogen, and car

tia_tia [17]

The correct option would be that oxygen, nitrogen, and carbon dioxide cannot react with one another.

<h3>Why air components cannot react</h3>

The components of atmospheric air, nitrogen, oxygen, carbon dioxide, etc., cannot react with one another because there is not enough energy in the atmosphere to set the reaction rolling.

For a reaction to take place, there must be enough energy to break the bonds in each air component. This is why the air components will not spontaneously react with one another, except during special events such as lightning and thunder.

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3 years ago

Which reactions are oxidation-reduction reactions? Check all that apply

tia_tia [17]

2 Na + Cl₂ → 2 NaCl

Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

CH₄ + 2 O₂ → CO₂ + 2 H₂O

are oxidation-reduction reactions

Explanation:

In the oxidation-reduction reaction there is a component which accept electrons and it is reduced and another component which donates electrons and it is oxidized.

Now in the case of the reaction of copper (Cu) with silver nitrate (AgNO₃):

Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

Cu⁰ with a oxidation number 0 donates 2 electrons⁻ and is transformed in Cu⁺² with the oxidation number 2+.

Ag⁺ with a oxidation number 1+ accepts 1 electron⁻ and is transformed in Ag with the oxidation number 0.

In the case of CH₄ + 2 O₂ → CO₂ + 2 H₂O reaction we have:

C⁴⁻ with a oxidation number +4 donates 8 electrons⁻ and is transformed in C⁴⁺ with the oxidation number 4+.

O⁰ with a oxidation number 0 accepts 2 electrons⁻ and is transformed in O²⁻ with the oxidation number 2-.

And in the case of 2 Na + Cl₂ → 2 NaCl reaction we have:

Na⁰ with a oxidation number 0 donates 1 electron⁻ and is transformed in Na⁺ with the oxidation number 1+.

Cl⁰ with a oxidation number 0 accepts 1 electron⁻ and is transformed in Clwith the oxidation number 1-.

Learn more about:

oxidation-reduction reactions

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3 years ago

explain why iron can displace copper from copper II nitrate solution, but copper cannot displace iron from iron III nitrate solu

mihalych1998 [28]

Answer:

Iron metal is more reactive than copper.

Explanation:

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3 years ago