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Svetradugi [14.3K]
3 years ago
7

Would you expect the water or sugar solution to have the most supercooling? WHY? PLEASE HELP

Chemistry
2 answers:
g100num [7]3 years ago
6 0

Answer:

The water solution

Explanation:

Super freezing occurs when energy is quickly withdrawn from a liquid and it cools below the solidification temperature. This phenomenon occurs due to the fact that the cooling is very fast and does not occur the formation of an initial "point" or crystal, which is generally formed to start the freezing. A small crystal formed will attract the molecules nearby, forming a large crystal, that is, the frozen liquid.

The sugar solution should be distilled so that Super Cooling occurs more efficiently than the water solution because the presence of the sugar would create nucleation points and allow the formation of ice crystals. The super cooled water solution turns very quickly into ice, much faster than the sugar solution. It is also possible to supercooled the water after the homogeneous nucleation point, in which case it eventually solidifies into a type of glass.

il63 [147K]3 years ago
3 0
Supercooled water can be prompted to trun into ice by tends to make it more difficult to achieve low nucleation Trehalose and other sugar solutions at low.
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Differentiate between acids and bases on the basis of their pH values. Give an example of each type.
Andrews [41]

Bases are the chemical opposite of acids. Acids are defined as compounds that donate a hydrogen ion (H+) to another compound.

Definition of Acids - An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water. Bronstead Lowry

Definition of Base - A base is an aqueous substance that can accept hydrogen ions. Bronstead Lowry Definition: A base is any substance which accepts a proton.

Physical Characteristics of Acids - Depending on the temperature, acids can occur in solid, liquid or gaseous form. Taste sour.

Physical Characteristics of Base - Bases feel slippery because of the reaction of the base with the oils of your hand. Frequently solids except ammonia which is a gas. Taste bitter.

Properties of Acids - Electrolytes, conduct electricity (because electrolytes), react with many metals.

Properties of Base - Electrolytes, conduct electricity, ranges from insoluble to so soluble that they can react with water vapor.

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Here are some differences! Hope this helps, sorry I couldn't think of anything else. ;(

5 0
3 years ago
2. force → the rate at which an object changes position; distance divided by time
yaroslaw [1]

Answer:

2. True

3. True

4. False

Explanation:

4 0
3 years ago
In which reaction does the oxidation number of oxygen increase? in which reaction does the oxidation number of oxygen increase?
Ipatiy [6.2K]

The answer is :

2H₂O (l) ------>2H₂ (g) + O₂ (g)  

That is ,

Oxidation number of oxygen increases in reaction :

2H₂O (l) ------>2H₂ (g) + O₂ (g)  

In H₂O, oxidation number of oxygen is -2 but in O₂ molecule it is 0.

So, oxidation number of oxygen increases in this reaction that is from -2 to 0.

So in the reaction that is 2H₂O (l) ------>2H₂ (g) + O₂ (g) ,  oxidation number of oxygen increases .


7 0
3 years ago
What is the molairity of a solution that consiste of 4.5 mols of a soluter in a 500 ml solution? Show your work.
RideAnS [48]

Answer:

0.9 mol/L.

Explanation:

  • Molarity is defined as <em>the number of moles of solute in a 1.0 L of the solution.</em>
  • It can be expressed as: <em>M = n / V(L)</em>

M is the molarity of the solution <em>(mol/L)</em>,

n is the number of moles of solute <em>(n = 4.5 moles)</em>,

V is the volume of the solution <em>(V = 500 ml = 0.5 L)</em>.

  • ∴ The molarity of the solution (M) = n / V = (4.5 mol) / (0.5 L) = 0.9 mol/L.
3 0
3 years ago
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Answer: because they take a lot of tie to form  

4 0
4 years ago
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