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disa [49]
2 years ago
13

What changes occur at the molecular level when ice cream melts and forms a liquid?

Chemistry
2 answers:
elena-s [515]2 years ago
7 0

Explanation:

It is known that before melting ice cream is present in a solid state so, its molecules are much closer due to which it has retained its shape.

But as its molecules absorb energy from the surroundings the they tend to gain kinetic energy. Due to this there will be increase in collision between its particles and they will move apart from each other. As a result, ice cream will start to melt.

Therefore, when ice cream melts and forms a liquid then molecules move away from each other at the molecular level.

Gemiola [76]2 years ago
3 0
When ice cream melts from solid to liquid, the motion of the molecules increases. This is because as the phase change moves from solid to liquid to gas, entropy increases which increases the probability of the molecules to collide and move in the system. This increase may be because of the increase in temp, probable cause of the melting of icecream.
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2 Chemistry Questions. Help?
Sliva [168]
<span>C-C and C-H bonds are relatively stable because 

they have low bond dissociation energy 


13. Dispersion forces are caused by the __________, 

motion of electrons 

Hope this answers the question. Have a nice day.</span>
3 0
2 years ago
A 75.0 mL sample of sulfuric acid (H2SO4) is neutralized by 25.0 mL of 0.150 M NaOH. Calculate the molarity of the sulfuric acid
Juli2301 [7.4K]

Answer:

THE MOLARITY OF SULFURIC ACID SOLUTION IS 0.05 L

Explanation:

Ca Va = Cb Vb

Ca = ?

Va = 75.0mL = 0.075 L

Cb = 0.150 M

Vb = 25.0 mL = 0.025 L

Ca = CbVb/ Va

Ca = 0.150 * 0.025 / 0.075

Ca = 0.00375 / 0.075

Ca = 0.05 M

The molarity is 0.05 L

6 0
2 years ago
6) A 14.5 g sample of sodium chloride reacts with excess fluorine gas according to
Ann [662]

The mass of  chlorine gas produced by 14.5 grams of sodium chloride is 10.42 g.

The mass of  chlorine gas produced by 14.5 grams of sodium chloride is 8.81 g.

The given parameters;

  • <em>mass of the sodium chloride, = 14.5 g</em>
  • <em>2NaCl(s) + F2(g) → 2NaF(s) + Cl2(g)</em>

<em />

In the reaction above, we can deduce the following;

molecular mass of 2Nacl = 2(58.44) = 116.88 g

molecular mass of 2NaF = 2(42) = 84 g

molecular mass of  Cl2 = 71 g

The mass of sodium fluoride produced by 14.5 grams of sodium chloride is calculated as follows;

116.88 g of NaCl --------------- 84 g of NaF

14.5 g of NaCl -------------------  ?

= \frac{84 \times 14.5}{116.88} \\\\= 10.42 \ g

The mass of  chlorine gas produced by 14.5 grams of sodium chloride is calculated as follows;

116.88 g of NaCl --------------- 71 g of Cl2

14.5 g of NaCl ------------------- ?

= \frac{14.5 \times 71}{116.88} \\\\= 8.81 \ g

Learn more here:brainly.com/question/8470145

8 0
2 years ago
Describe the buffer capacity of the acetic acid buffer solution in relation to the addition of both concentrated and dilute acid
frosja888 [35]

Answer:

The more concentrated acetic acid buffer has a better buffer capacity because requires more moles of acid or base to change the pH than a more diluted acetic acid buffer.

Explanation:

Buffer capacity is defined as the moles of an acid or base that are needed to change the pH of a buffer in 1 unit.

A more concentrated solution of acetic buffer contains more moles of the acid per liter of solution. A solution that contains more moles of the acetic ion or the acetic acid requires more moles of base or acid to change the pH, that means:

The more concentrated acetic acid buffer has a better buffer capacity because requires more moles of acid or base to change the pH than a more diluted acetic acid buffer.

5 0
2 years ago
“What is the group number for the elements that have a stable number of electrons in their outer energy level?”
Studentka2010 [4]

Answer:

A. 18

Explanation:

Sulfur number sixteen forms a negative

|ω・)

3 0
2 years ago
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