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wel
2 years ago
9

11) When salt and water are mixed, they form a solution like in the ocean. When sand and water are mixed, they form a mixture wh

ere the sand does not dissolve. Which statement might summarize this observation? A) Mixtures and solutions are the same. B) All substances mixed with water are solutions. C) In mixtures, you cannot see the separate substances. D) In solutions you cannot see the separate substances.
Chemistry
1 answer:
mihalych1998 [28]2 years ago
5 0

Answer: D

Explanation:

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An allylic carbocation is an example of a(n) _____ system. (select all that apply.)
DerKrebs [107]

An allylic carbocation is an example of a system that is:

  • delocalized
  • conjugated.

<h3>What is allylic carbocation?</h3>

An allylic carbocation is a resonance-stabilized carbocation with a formal charge of +1 on an allylic carbon in each of the two resonance forms.

Thus, it is correct to state that:

An allylic carbocation is an example of a system that is:

  • delocalized
  • conjugated.

Learn more about allylic carbocation:
brainly.com/question/16258022
#SPJ4

Full Question:

An allylic carbocation is an example of a(n) _______ system. (Select all that apply.)

- localized

- isolated

- delocalized

- conjugated

6 0
1 year ago
Consider the chemical equilibrium of a soap that is present in its aqueous solution. C17H35COONa(aq) mc017-1.jpg C17H35COO–(aq)
MAVERICK [17]

Answer : Option B) The equilibrium will shift to the left to such an extent that it leads to the precipitation of solid soap.

Explanation : The equilibrium will tend to shift to left because addition of sodium chloride salt will lead to precipitate the soap as a product. The volume increase in the sodium ions because of sodium chloride addition will generate the more amount of solid soap.

5 0
3 years ago
Read 2 more answers
How does ice float on water?<br><br> Why does solid ice float on liquid water?
kifflom [539]

Answer:

Because there is trapped air inside the cube of ice

Explanation:

when water freezes it has water molecules and air molecules and as it freezes they move slower and slower until it freezes and they become stuck

4 0
3 years ago
Zinc will displace copper from a solution of copper sulfate, and magnesium will displace zinc from a solution of zinc sulfate. W
Anna [14]

Answer:

The displacement reactions are regarded as redox reactions because they involve the formal transfer of electrons from one chemical specie to the other

2) The series of reactivity of the metals in the order of increasing reactivity are;

  • Copper

           ↓

  • Zinc

           ↓

  • Magnesium

Explanation:

1) Redox (oxidation-reduction) reaction is a chemical reaction involving the loss and gain of electrons from one chemical species to another, where the chemical species that undergoes oxidation, loses electrons and is termed the reducing agent, while the other chemical species that undergoes reduction, gains electrons, and is termed the oxidizing agent

2) The redox reaction can being based on the affinity for electrons depends on the positions of the reactants in the electrochemical series as well as the chemical reactivity of the metals with zinc being a stronger reducing agent and more chemically reactive than copper and magnesium being a stronger reducing agent and more chemically reactive than zinc

Least  reactive (Cu)  <     (Zn)        < Mg Most reactive

Copper                     <      Zinc       < Magnesium.

4 0
2 years ago
Which of the following expressions best represents a second order rate law?
Ksivusya [100]
I think the correct answer would be C. The expression that would best represent a second order rate law would be r =k[X][Y]. Reaction with this rate law are those that depend on the concentration of two first order reactants or a second order reactant.
8 0
3 years ago
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