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Mademuasel [1]
3 years ago
5

Which of the following statements is false?​

Chemistry
1 answer:
Artist 52 [7]3 years ago
7 0
The correct answer in 81
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Who taught us how planets move?
alexdok [17]

Answer:

It is <u>KEPLER</u>

Explanation:

Kepler defined the sun's orbit.

okay.

6 0
3 years ago
Consider the reaction of gaseous hydrogen with gaseous oxygen to produce gaseous water. Given that the first picture represents
Bogdan [553]

The question is incomplete. There's missing the image, which is shown below.

Answer:

Volume of O₂ = 6 L, volume of mixture: 18 L, volume of H₂O = 12 L, molecule volume of H₂O = 0.667 molecule/L

Explanation:

The reaction between hydrogen gas and oxygen gas to form water is:

2H₂(g) + O₂(g) → 2H₂O(g)

So, for 1 mol of O₂ is necessary 2 moles of H₂ form 2 moles of H₂O. As the images below there's 8 molecules of H₂, 4 molecules of O₂, 12 molecules in the mixture, and 8 molecules of H₂O. Thus, there are stoichiometric values.

All the images are at the same temperature and pressure, so, by the ideal gas law:

PV= nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

The number of moles and molecules are related, so let's substitute it in the equation. For the H₂:

P*12 = 8*RT

RT/P = 12/8 = 1.5

Thus, for O₂:

PV= nRT

V = n*(RT/P)

V = 4*1.5 = 6 L

For the mixture:

V = 12*1.5 = 18 L

For H₂O:

V = 8*1.5 = 12 L

The molecule volume is the number of molecules divided by the volume they occupy, thus for water: 8/12 = 0.667 molecules/L

6 0
3 years ago
What are the two processes underlying this image that turn peat into coal
Travka [436]

Answer:

Peatification and coalification

Explanation:

https://energyeducation.ca/encyclopedia/Coal_formation

8 0
3 years ago
Read 2 more answers
(Only answer if you’re for certain) Which type of molecule is shown below?
polet [3.4K]

i believe B is the answer

4 0
3 years ago
Read 2 more answers
If a substance has ph of 3.2 what is the poh
Oxana [17]
It is a base? i believe
7 0
3 years ago
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