CHEMISTRY HIGH SCHOOL

A hot air balloon is filled with of an ideal gas on a cool morning ( The air is heated to What is the volume of the air in the balloon after it is heated? Assume that none of the gas escapes from the balloon.

Answers

Answer 1
Answer:

Answer:

Charles's law states that V1 / T1 = V2 / T2. However, you must make sure that T is in Kelvin, not C.

1.19E6 / (11 + 273) = V2 / (113 + 273)

V2 = 1.62E6

Explanation:

Gases expand when heated if the container they are in is flexible. When the gas is heated its molecules move faster and faster. The collisions of the gas particles with the flexible container wall expand.

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While driving your rental car on your trip to Europe, you find that you are getting 9.7 kilometers per liter of gasoline. What does this correspond to in miles per gallon?

Answers

The given value is 9.7 km/L

Since, 1 km = 0.62 mile so:

9.7 km = 9.7 km * 0.62 miles/km = 6.014 miles

Since, 1 L = 0.2199 galon so:

9.7 km/L = (6.014 miles)/(0.2199 galon)

27.35 miles/ galon

Hence, 9.7 kilometers per liter of gasoline is 27.35 miles/ galon.
While driving your rental car on your trip to Europe, you find that you are getting 9.7 kilometers per liter of gasoline. We know that 1 mile is equal to 1.609 kilometers. So divide 9.7 kilometers by 1.609 kilometrs/mile and you will get 6.03 miles per gasoline

What type of fault usually occurs because of tension?a.
folded
c.
strike-slip
b.
normal
d.
reverse

Answers

Answer:

NOT C

Explanation:

got it wrong
C i think , im not sure

Which statement about the density of warm water is most likely correct?Warm water is more dense than cold water.
Warm water is less dense than cold water.
The density is the same for warm and cold water.
The density will sometimes be higher for warm water and other times higher for cold water.

Answers

option b. warm water is less dense than cold water.

It is due to the the effect of heat on water molecules that's why warm water tend to rise above cold ones. The molecules of the water are excited by the energy. They begin moving faster, so when they bump into one another, they bounce further away. The increase space between the fast-moving molecules decreases the density.

Is elemental phosphorus dull or high luster?

Answers

The exception is the element hydrogen. ... solid at room temperature (with the exception of mercury); usually shiny; high melting point; good conductor of ... could be dull or shiny; conducts heat and electricity, but not as well as metals ... allotropes–Phosphorus, Selenium and Carbon (in the form of graphite.) ...

Gas A effuses 0.68 times faster than gas B. If the molar mass of gas B is 17 grams, what is the mass of gas A?

Answers

So gas A must be heavier than B since it effuses slower 
17 g/mole / (0.68)^2 = 36.8 g/mole

Which of the following is true about the structure of an atom?A. Electrons, neutrons, and protons are made up of even smaller constituents, such as quarks and gluons.

B. An atom is not composed of smaller parts and cannot be broken down into smaller constituents.

C. Atoms are composed of tiny cells that make up all forms of matter.

Answers

The correct answer should be A. Atoms can be broken up into protons, neutrons, and electrons. Protons and neutrons can be broken up into even smaller particles but I am not sure if it has been proven that electrons can be broken up into smaller particles. I hope this helps. Let me know if anything is unclear.
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