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Gelneren [198K]
3 years ago
11

Boiling is an example of a physical property. How do the particles of gas compare to the particles as a liquid?

Chemistry
2 answers:
Serggg [28]3 years ago
8 0

Answer: A

Explanation:

Stolb23 [73]3 years ago
7 0
Particles of gas are more scarcely placed  as compared to that of liquid.

the intermolecular forces will be less in gaseous state and hence is less stable
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What is the frequency of electromagnetic radiation with a wavelength of 6.34 x 10^8 m?
Svetllana [295]
<h2>Answer: 4.72 × 10⁷  s⁻¹ or Hz</h2><h3>  Explanation: </h3>

frequency = speed of light ÷ wavelength

frequency = (2.99 × 10⁸  m/s)  ÷  (6.34 × 10⁸  m)

                  =  4.72 × 10⁷  s⁻¹ or Hz

8 0
3 years ago
The questions are attached​
Sladkaya [172]

Answer:

Explanation:

a) Balanced chemical equation:

C₃H₈ + 5O₂      →        3CO₂ + 4H₂O

b) Mass of oxygen gas needed = ?

Mass of propane = 25 g

Solution:

Number of moles of propane = mass/molar mass

Number of moles = 25 g/  44.1 g/mol

Number of moles = 0.57 mol

now we will compare the moles of oxygen and propane:

                            C₃H₈        :          O₂        

                                1           :            5

                             0.57        :         5/1×0.57 =  2.85 mol

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 2.85 mol × 32 g/mol

Mass = 91.2 g    

c) water vapors produced = ?

Mass of propane = 25 g

Solution:

Number of moles of propane = mass/molar mass

Number of moles = 25 g/  44.1 g/mol

Number of moles = 0.57 mol

now we will compare the moles of water and propane:

                            C₃H₈        :          H₂O        

                                1           :            4

                             0.57        :         4/1×0.57 =  2.28 mol

Mass of water vapors:

Mass = moles × molar mass

Mass = 2.28 mol × 18 g/mol

Mass = 41.0 g

d)

mass of water vapors produced = 1.5 kg (1500 g)

Mass of propane reacted = ?

Solution:

Number of moles of water vapors:

Number of moles = mass/molar mass

Number of moles = 1500 g/ 18 g/mol

Number of moles = 83.33 mol

now we will compare the moles of water and propane.

         

                            H₂O          :            C₃H₈    

                               4            :              1

                             83.3         :         1/4×83.3 =  20.8 mol

Mass of propane:

Mass = number of moles ×molar mass

Mass = 20.8 mol × 44.1 g/mol

Mass = 917 g

3 0
2 years ago
Mr. Holmes is busy making a paper mache volcano that he is sure is going to win the national science fair contest. He only has r
AnnyKZ [126]

Answer:

Bottle 2 shows the vinegar has a molarity of 2M acetic acid

Explanation:

2M of acetic acid has higher concentration of acetic acid as compared to other vinegar. In 2M of acetic acid is equals to 120 gram of acetic acid in 500 ml of water which is quiet higher than other concentration of acetic acid in vinegar which is 4%. So Mr. Holmes has to use 2M of acetic acid which will produced high intense eruption in the volcano and win the national science fair contest.

7 0
3 years ago
Which statement describes particles of an ideal gas, based on the kinetic molecular theory?
Basile [38]

Answer:

The answer is C. Gas particles have no attractive forces between them.

Explanation:

4 0
3 years ago
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Which of these scenarios involve a reaction that is at equilibrium
Tasya [4]
Reaction is producing more reactants than products
3 0
3 years ago
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