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Virty [35]
4 years ago
12

Your classmate Manuel missed class yesterday. To help him catch up, explain in at least one complete sentence the effect of free

zing water into an ice cube on mass.
Chemistry
1 answer:
crimeas [40]4 years ago
3 0

Answer:

Explanation:

In freezing water into ice cubes, the mass remains the same but the volume increases. The increase in volume confers a reduction in density between ice and water.

Like most chemical reactions, in phase changes, mass is always conserved. This applies to the freezing of water. When water is frozen, it mass stays the same. Freezing water in turn causes a spike in volume which leads a decrease in density. This is why ice floats on ocean water, an anomalous behavior.

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A .332 mold sample of gas at a constant pressure and temperature has a volume of 150.0mL. If the volume of the gas is decreased
Vikentia [17]

Answer:

0.111 mol

Explanation:

We can solve this problem by using<em> Avogadro's law</em>, which states that at constant pressure and temperature:

  • V₁n₂=V₂n₁

Where in this case:

  • V₁ = 150.0 mL
  • n₂ = ?
  • V₂ = 50.0 mL
  • n₁ = 0.332 mol

We <u>input the data given by the problem</u>:

  • 150.0 mL * n₂ = 50.0 mL * 0.332 mol

And <u>solve for n₂</u>:

  • n₂ = 0.111 mol
6 0
3 years ago
IS ANYONE GOOD AT CHEMISTRY?! like frr. <br> I need help
wariber [46]
Yeah, what do you need help with?
8 0
3 years ago
Design a synthesis of acetophenone from benzene or toluene. 1275q Part 1 out of 5 Choose the best option for the nucleophile pre
Trava [24]

Answer:

A Fridiel craft catalyst will convert benzene to acetophenone.

Permanganate catalyst can be used to convert toluene to acetophenone.

Explanation:

Benzene can be reduced to acetophenone by the addition of anhydrous aluminium chloride, AlCl₃

The mechanism is as follows:

Benzene + Acetyl choloride → acetophenone

To convert toluene to acetophenone, the following steps are necessary:

  • Oxidation of Toluene to Benzoic acid.

     This is done by refluxing toluene with alkaline potassium permanganate         (KMnO₄+ Na₂CO₃).

  • Benzoic acid is converted to Benzoyl chloride by treating with thioyl chloride and heating at about 80 ⁰C.
  • Benzoyl chloride is treated with methyl lithium to form Acetophenone.
5 0
3 years ago
Which of the following is not a result when a change to an equilibrium system is applied? (2 points)
gogolik [260]
<span>2) Increasing the rate of the reverse reaction will cause a shift to the left.
Hopefully, If it is wrong my full apologies.</span><span />
7 0
3 years ago
Which of the following is not a function?
EastWind [94]

Answer:

A student's name paired with the sport that they play.​

Explanation:

8 0
3 years ago
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