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Vesna [10]
3 years ago
8

What happens to water particles at boiling point

Chemistry
2 answers:
Scilla [17]3 years ago
6 0
When water particles are heated to their boiling point, they begin to change form into a gas.
Anestetic [448]3 years ago
6 0
At boiling point, water particles separate forming a gas called steam.
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Many portable gas heaters and grills use propane, C3H8(g). Using enthalpies of formation, calculate the quantity of heat produce
Elodia [21]

Answer:  600 kJ

-

Explanation:

                        C₃H₈ (g)  + 5 O₂ (g) =============== 3 CO₂ (g)  +  4 H₂O (l)

Δ⁰Hf   kJ/mol       -104             0                                       -393.5         -285.8

Δ⁰Hcomb C₃H₈ = 3(-393.5) + 4 (-285.80) - (-104)  kJ/mol

Δ⁰Hcomb = 2219.70 kJ/mol

n= m /MW   MW c₃H₈ = 44.1 g/mol

n= 12 g/44.1 g/mol = 0.27 mol

then for 12 g the heat released will be

0.27 mol x 2219.70 kJ/mol =  600 KJ

4 0
2 years ago
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a chemist wishes to mix some pure acid with some water to produce 16L of a solution that is 30% acid how much pure acid and how
Aloiza [94]

<u>Answer:</u> The volume of acid and water that must be mixed will be 4.8 L and 11.2 L

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Volume of acid in the mixture = 4.8 L

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3 years ago
Which phrase describes a plateau?
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Answer:

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when you draw a bow across a violin string which kind of wave is created in the air surrounding the string
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When the string on a violin vibrates, waves move in both directions along the string, interfering with each other. These waves are standing waves.

Explanation:

What are Standing Waves?

The Standing Waves are waves generated due to the vibrational frequency that produces reflected waves capable of interfering with the incident waves. 

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1 year ago
Which best compares a molecule that has a trigonal planar shape with one that has a trigonal pyramidal shape?
Juli2301 [7.4K]

Answer:

B. They both contain three atoms around the central atom.

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Do the unit test on edg20 and got it right!

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