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11Alexandr11 [23.1K]
2 years ago
14

Science there’s a picture

Chemistry
1 answer:
melomori [17]2 years ago
4 0

Answer:

D)

Explanation:

seems like the most logical option out of all listed.

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The combined gas law states that
seropon [69]

Answer:

Option B. PV = nRT.

Explanation:

From the above,

C = PV / T. (1)

But, C is directly proportional to n, where R is the gas constant i.e

C & n

C = nR

Substituting the value of C into equation (1), we have:

C = PV / T

nR = PV / T

Cross multiply to express in linear form

nRT = PV

Therefore,

PV = nRT

8 0
2 years ago
The original amount of radioactive substance is 10 grams. After several years, 2.5 gtams of the substance is remaining. How many
nirvana33 [79]
10/2=5 (one half life)
5/2=2.5(two half lives)
8 0
3 years ago
Which represents the empirical formula for a3B9
Viktor [21]
A3B9 represents a molecular formula. The representation of the empirical formula for this compound is AB3. This is so because the empirical formula is the simplest ratio of the atoms present in the molecule. You get AB3 when you divide the subscripts of A3B9, this is 3 and 9, by the greatest common factor, which is 3. 3/3 = 1 and 9/3 = 3, so the subscripts for the empirical formula are 1 and 3, which is what AB3 represents. <span>Answer: AB3.</span>
3 0
3 years ago
How can a hydrogen atom, which has only one electron, have so many spectral lines?
kow [346]

Answer:

The hydrogen atom has just one electron, but many spectral lines. However it contains many shells and the movement of that electron from one shell to another causes the release of energy and also an emission of photons.

A spectral line are dark or bright lines formed within a specific frequency range which differ from other frequencies.Because of the difference of energy for the various shells, it produces different wavelengths and this is the reason for the many spectral line for hydrogen.

6 0
3 years ago
A gas effuses 4.0 times faster than oxygen (o2). what is the molecular mass of the gas? 1.0 g/mol 1.0 g/mol 2.0 g/mol 2.0 g/mol
Anastaziya [24]

Answer:

32(molecular mass has no unit )

Explanation:

(16)(o2)

16×2

=32

5 0
2 years ago
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