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Nimfa-mama [501]
3 years ago
14

The absorption spectrum of helium has a black vertical line at a wavelength of 502 nm. What can you conclude about atoms of heli

um?
A. They emit photons with a wavelength of 502 nm.
B. They do not emit photons with a wavelength of 502 nm.
C. They emit photons with a wavelength that is shifted slightly above 502 nm.
D. They emit photons with a wavelength that is shifted below 502nm.​
Chemistry
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

The answer is A

Explanation:

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Helppp nowwww plsss!!!
Fiesta28 [93]

Answer:

it is D

Explanation:

A tree for one is a renewable resource, but. It said "farmed trees" therefore the best way to farm trees it well, to farm them. But to sustainably farm them you would need to replace what you destroyed to be able to keep farming in the future.

3 0
3 years ago
Read 2 more answers
N sub 2 +3H sub 2 rightwards arrow 2NH sub If 6 liters of hydrogen gas are used, how many liters of nitrogen gas will be needed
astraxan [27]

Answer:

2L of nitrogen gas will be needed

Explanation:

Based on the following reaction:

N₂ + 3H₂ → 2NH₃

<em>1 mole of nitrogen reacts with 3 moles of hydrogen to produce 2 moles of ammonia.</em>

<em />

If 6L of hydrogen (In a gas, the volume is directly proportional to the moles, Avogadro's law) react, the volume of nitrogen gas required will be:

6L H₂ * (1mol N₂ / 3 moles H₂) =

<h3>2L of nitrogen gas will be needed</h3>
7 0
3 years ago
A solution has a [Ag+(aq)] of 0.01 M. The chloride concentration in solution is 1 x 10-5 M. Based on the following reaction, ans
earnstyle [38]
 The value  of current  solubility  product  is calculated as  below

K =  (Ag+)( Cl-)

 Ag+  =  0.01 M
Cl-= 1 x10^-5M

K is therefore = 1 x10^-5 x 0.01 = 1 x10  ^ -7 M

The K obtained is greater  than  Ksp

that is    K>  KSp
 1x10^-7 >  1.7 x10 ^-10


will  precipitation  of AgCl form?

yes  the precipitation  of AgCl  will  be formed   since   K> KSP


7 0
4 years ago
What number should be placed in front of Fe to balance this chemical
andrew-mc [135]

the answer is B. 2

because there is 2 iron on the right side so you need another two on the left side to balance it out

6 0
3 years ago
Name an atom that loses one electron when it reacts to another atom
Hitman42 [59]
Lithium, Sodium, Potassium; any of the Alkali Metals, which are farthest left on the periodic table. This is because they only have one electron in their outermost shell, so they would rather lose an electron rather than try to gain 7 to achieve that full outer shell.
4 0
3 years ago
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