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4 years ago

Almost all of the oxygen on the planet Earth is found in the atmosphere. Is this true or false?

Chemistry

2 answers:

irakobra [83]4 years ago

4 0

False..................

solong [7]4 years ago

3 0

<span>False. Almost all of the oxygen on Earth is found in the oceans.</span>

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What volume would a 23.8 g sample of sulfur dioxide take up if it were stored at STP7

IceJOKER [234]

Answer:

Explanation:

4 0

3 years ago

What is state symbols

Ganezh [65]

Answer:

Explanation:

State symbols are used in chemical equations to delineate the state of matter in which the reaction is taking place.

They give a good perspective of the state of the reactants and products obtainable.

There are basically four states of matter in every chemical reaction:

Solids are symbolized by small letter (s)
Liquids are represented by (l)
Gases are shown by (g)
Aqueous solutions having water as the medium by (aq)

These symbols appear as subscript in front of the chemical species.

5 0

3 years ago

If I initially have a gas at a pressure of 12 atm, volume of 23 liters, and temperature of 200 K, and then I raise the pressure

CaHeK987 [17]

Answer : The volume of gas will be 29.6 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 12 atm

$P_2$ = final pressure of gas = 14 atm

$V_1$ = initial volume of gas = 23 L

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = 200K

$T_2$ = final temperature of gas = 300K

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{12atm\times 23L}{200K}=\frac{14\times V_2}{300K}$

$V_2=29.6L$

Therefore, the new volume of gas will be 29.6 L

5 0

3 years ago

Read 2 more answers

Question 13 of 32

jarptica [38.1K]

Answer:

Explanation:

this should be obvious if you read it haha

3 0

3 years ago

A complex absorbs photons with an energy of 4.10×10^−19 J. What is the wavelength of these photons? If this is the only place in

MaRussiya [10]

Answer:

483 nm corresponds to blue light hence the complex will appear orange.

Explanation:

Using the formula;

E= hc/λ

Where;

E = energy of the photon

h = Plank's constant (6.6*10^-34Js)

c = Speed of light (3*10^8 ms-1)

λ = wavelength

λ = hc/E

λ = 6.6*10^-34 * 3*10^8/4.10×10^−19

λ = 4.83 * 10^-7 or 483 nm

483 nm corresponds to blue light

Using the colour wheel approach, if a complex absorbs blue light, then it will appear orange.

6 0

3 years ago