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sveta [45]
3 years ago
13

To describe the length of a classroom, a student should use

Chemistry
2 answers:
Kamila [148]3 years ago
8 0
The answer is D).....
steposvetlana [31]3 years ago
7 0

The answer is d because you are measuring a classroom

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How will the following changes affect the mole fraction of chlorine gas, χcl2, in the equilibrium mixture.?
sammy [17]
If the reaction is represented by:
PCl₃ + Cl₂ <-> PCl₅ (exothermic)

the mole fraction of chlorine in the equilibrium mixture will change according to the following:
Decrease the volume: decrease
Increase the temperature: increase
Increase the volume: increase
Decrease the temperature: decrease
4 0
3 years ago
KOH and LiOH are examples of<br><br> bases<br><br> neutral compounds<br><br> acids<br><br> salts
vampirchik [111]
It is an example of bases
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HELP HELP HELP!! Explain the various factors that impact the solubility of substances in water.
Agata [3.3K]

Explanation:

There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases.

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A student uses a dye to change the colour of his tee-shirt. he fills a metal bucket with water. When the bucket is heated, what
Tanya [424]

Answer:

The particles begin to vibrate faster and more.

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8 0
3 years ago
The molar mass of a solid carboxylic acid is determined by titrating a known mass of the acid with a standardized solution of Na
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The answer is: II.The endpoint is recorded when the solution is dark red in color rather than light pink.

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If the the acid is spilled before titration, that does not make endpoint wrong and molar mass can be calculated.

In this example we can take acetic acid as carboxylic acid; basic salt sodium acetate CH₃COONa is formed from the reaction between weak acid (in this example acetic acid CH₃COOH) and strong base (in this example sodium acetate NaOH).  

Balanced chemical reaction of acetic acid and sodium hydroxide:  

CH₃COOH(aq) + NaOH(aq) → CH₃COONa(aq) + H₂O(l).  

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8 0
3 years ago
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