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andreyandreev [35.5K]
3 years ago
11

In which situation are the individual molecules moving the fastest? A) in a bowl of hot soup B) in a glass of iced tea C) in a g

lass of tap water D) in a cup of boiling water\
Chemistry
2 answers:
Airida [17]3 years ago
5 0
<h2>Answer : Option D) In a cup of boiling water</h2><h3>Explanation :</h3>

The individual molecules of water while boiling will move fastest amongst the given choices. As the boiling of water will cause the liquid molecules to increase the intermolecular forces of attraction between molecules and get escaped into vapors. Here, there is a transformation of state that is about to occur from liquid to gaseous. Compared to other examples, where there are no change of state occurring.

tresset_1 [31]3 years ago
5 0

D) in a cup of boiling water

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An increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often.
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2 years ago
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A student was comparing two samples with an equal number of carbon atoms. One sample contained only Carbon-12 atoms. One sample
Diano4ka-milaya [45]

Answer:

3.14

Explanation:

A student was comparing two samples with an equal number of carbon atoms. One sample contained only Carbon-12 atoms. One sample contained only Carbon-14 atoms, which contain two more neutrons than Carbon-12 atoms. The student measured the mass of each sample and testing the reactivity of each sample.

Required:

What would best describe the results of the investigation?

3 0
2 years ago
Calculate: A. Mercury has a specific Heat Capacity of 0.14 J/goC. How much heat is needed to raise the thermometer temperature 1
kari74 [83]

Answer:

\boxed {\boxed {\sf 56 \ Joules}}

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

q=mc \Delta T

The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.

  • ΔT= final temperature - initial temperature
  • ΔT= 95°C - 15°C = 80°C

We know the variables and can substitute them into the formula.

m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C

q= (5 \ g )( 0.14 \ J/ g \ \textdegree C ) ( 80 \ \textdegree C)

Multiply the first numbers. The grams will cancel.

q= 0.7 \ J/ \textdegree C(80 \ \textdegree C )

Multiply again. This time the degrees Celsius cancel.

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4 0
3 years ago
What mass of F2 is needed to produce 180 g of PF3 if the reaction has a 78.1% yield?
nexus9112 [7]

Answer:

91.26 g

Explanation:

Given data:

Mass of PF₃ = 180 g

Mass of F₂ required = ?

Solution:

Chemical equation:

P₄ + 6F₂   → 4PF₃

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Number of moles = mass/ molar mass

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Number of moles = 2.05 mol

Now we will compare the moles of PF₃ with F₂.

                        PF₃            :           F₂

                          4               :           6

                          2.05         :           6/4×2.05 = 3.075

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Mass of F₂ = moles × molar mass

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Mass of F₂ =  116.85 g

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6 0
3 years ago
The atomic mass of oxygen is 16 and the atomic mass of hydrogen is 1. How do the current atomic masses of oxygen and hydrogen co
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- By determining the relative mass we will be able to determine for example that one element has twice the mass of a second element.
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