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enyata [817]
3 years ago
7

A theory is a ___.

Chemistry
1 answer:
Dimas [21]3 years ago
7 0

The answer is either A or C. Sorry I'm not much help :)

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a gas occupies 600.0 ml at 20.00 degrees C and 70.00kPa what will be the pressure at 40.00 degrees C and 150.0mL?
Zina [86]

Answer:

P₂ = 299.11 KPa

Explanation:

Given data:

Initial volume = 600 mL

Initial pressure = 70.00 KPa

Initial temperature = 20 °C (20 +273 = 293 K)

Final temperature = 40°C (40+273 = 313 K)

Final volume = 150.0 mL

Final pressure = ?

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₂ = P₁V₁ T₂/ T₁ V₂  

P₂ =  70 KPa × 600 mL × 313 K / 293K ×150 mL  

P₂ = 13146000 KPa .mL. K /43950 K.mL

P₂ = 299.11 KPa

4 0
3 years ago
In the reaction, CH4 + 2O2 --> CO2 + 2H2O, 890 kilojoules of heat are released. Using Einstein's equation, calculate the mass
Nat2105 [25]
The answer is B on this one
8 0
3 years ago
PLZ HELP ILL GIVE BRAINLIST!
Schach [20]

Answer:

The energy of a wave is inversely proportional to the wavelength of the wave.

As wavelength increases, the energy of the wave decreases.

As wavelength decreases, the energy of the wave increases.

Explanation:

The energy of a wave is directly proportional to the wave's frequency. As frequency increases, so does the energy of the wave.

E\propto f (energy E is proportional to frequency f)

<u>How is this related to wavelength?</u>

Frequency is inversely proportional to wavelength. That means that as frequency increases, wavelength decreases and as frequency decreases, wavelength increases.

f\propto \frac{1}{\lambda} (frequency f is inversely proportional to wavelength \lambda)

Therefore, as wavelength increases, the energy of a wave decreases and as wavelength decreases, the energy of a wave increases.

E\propto f\propto \frac{1}{\lambda}

6 0
3 years ago
Propane burns in air to produce carbon dioxide and water?
Elan Coil [88]
Hey there!
Great question=)

Yes, this statement is true! Propane burns in air and it produces carbon dioxide and water.

I hope this helps;)
6 0
3 years ago
Which sample of argon contains a total of 3.01 x 10^23 molecules at STP?
soldi70 [24.7K]

Answer:option d

Explanation:

7 0
3 years ago
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