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swat32
3 years ago
5

A supersaturated solution can be prepared by dissolving solute in solvent while adding ______. A supersaturated solution contain

s more ______ than can ordinarily be dissolved in the solvent at room temperature. A solution may remain supersaturated until _______ is initiated, often by adding solid to the solution or by allowing solvent to evaporate.
Chemistry
1 answer:
Delicious77 [7]3 years ago
4 0

Answer:

Heat, solutes and high temperature.

Explanation:

A supersaturated solution can be formed by dissolving solute more solute in solvent by increasing temperature of the solution. A supersaturated solution contains more quantity of solutes than can be dissolved in the solvent at room temperature. A solution may remain supersaturated until the solution has high temperature and when the temperature started lower, the extra dissolve solutes begin undissolved and remain suspended in the solution.

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Round to 3 significant figures.<br> 1.235
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3 SigFigs = 1.24

1.24 x 10^{0}

Explanation:

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Determine the percent ionization of a 0.230 m solution of benzoic acid.
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A cup of hot tea _____.
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whats the answer choices

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Which statements are true? The oxidation number for Cu(s) is +2. An oxidizing agent gains electrons. Na+ is formed from the redu
just olya [345]

<u>Answer:</u> The correct statements are:

An oxidizing agent gains electrons and Zn^{2+} is formed from the oxidation of Zn(s).

<u>Explanation:</u>

For the given options:

  • <u>Statement 1</u>: The oxidation number for Cu(s) is +2

Copper is the 29th element of the periodic table having electronic configuration of [Ar]3d^{10}4s^1

This element can show +1 or +2 oxidation states. Thus, this statement is false.

  • <u>Statement 2:</u> An oxidizing agent gains electrons.

Oxidizing agents are defined as the agents which oxidize other substance and itself gets reduced. These agents undergoes reduction reactions and reduction reaction is the reaction in which an atom gains electrons.

Thus, this statement is True.

  • <u>Statement 3:</u>  Na^+ is formed from the reduction of Na(s)

Oxidation reaction is defined as the reaction in which an atom looses its electrons. Here, oxidation state of the atom increases.

X\rightarrow X^{n+}+ne^-

Sodium is the 11th element and it will loose electrons to form sodium ion.

Na\rightarrow Na^++e^-

Hence, this statement is false.

  • <u>Statement 4:</u> The oxidation number for Hg(l) is 0.

Mercury is the 80th element of the periodic tale having electronic configuration of [Xe]4f^{14}5d^{10}6s^2

This element can show +1 or +2 oxidation states. Thus, this statement is false.

  • <u>Statement 5:</u> A reducing agent gains electrons.

Reducing agents are defined as the agents which reduces the other substance and itself gets oxidized. These agents undergoes oxidation reactions and oxidation reaction is defined as the reaction in which an atom looses its electrons.

Thus, this statement is false.

  • <u>Statement 6:</u>  Zn^{2+} is formed from the oxidation of Zn(s)

Oxidation reaction is defined as the reaction in which an atom looses its electrons. Here, oxidation state of the atom increases.

X\rightarrow X^{n+}+ne^-

Zinc is the 30th element and it will loose electrons to form zinc ion.

Zn\rightarrow Zn^{2+}+2e^-

Thus, this statement is True.

Hence, the correct statements are:

An oxidizing agent gains electrons and Zn^{2+} is formed from the oxidation of Zn(s).

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Why do scientists look for patterns in the world​
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Answer:

to do day-to day activities easily and make surrounding comfortable for man

Explanation:

as an example , binary numbers help to work computers ,calculators.they help us lot .

scientific methods also need to write large and small numbers in short ways .so, scientists find various patterns .

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