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Yuri [45]
2 years ago
15

Pls helps asap plsssssss

Chemistry
2 answers:
nata0808 [166]2 years ago
6 0

Answer:

D. An ion that is not directly involved in the reaction.

Explanation:

Spectator ions are ions that are not directly involved in a chemical reaction. They are commonly seen in complete ionic equations and are often taken out to make a net ionic equation because the ions aren't involved in forming the precipitate.

  • Complete ionic equation: Gives all the ions participated in the chemical reaction, even spectator ions.
  • Net ionic equation: Leaves out spectator ions so the equation only shows the ions that formed the precipitate.

For example, this is very useful when dealing with redox reactions because are complicated enough without spectator ions being in the way, so they help focus on those ions that actually form the precipitate.

Lisa [10]2 years ago
4 0

Answer:

A spectator ion refers to a charged atom in a chemical reaction that does not undergo a chemical change.

Hope this helps!!!

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Answer: Option (D) is the correct answer.

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  • A pure substance is defined as the substance that is made up of only one type of atom or only one type of molecule.

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Also, substances that contain two or more different element which are chemically combined in a fixed ratio by mass are known as compounds. They are also pure substances.

A pure substance can only be separated by a chemical method and not by any physical method.

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For example, mud dissolved in water.

It is not necessary that two or more substance present in a heterogeneous mixture should be of same phase.

Also, it is not necessary that combination of a liquid and a solid always results in a heterogeneous mixture.

If the solid is able to dissolve completely into the liquid then it will result in a homogeneous mixture.

  • Whereas a homogeneous mixture is defined as the mixture which contains uniform distribution of solute particles into the solvent.

For example, salt dissolved in water is a homogeneous mixture.

Thus, we can conclude that the statement composition is uniform throughout a homogeneous mixture, is correct.

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