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Ierofanga [76]
3 years ago
5

What is an emission spectra and how would you view one?

Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

The emission spectrum is formed when the electrons of a particular atom absorb energy and are excited (in this case by heating), reaching higher energy levels.  

You can see it for example with an experiment where we light alcohol mixed with banana chips (it has potassium). The burning alcohol emits heat that makes potassium atoms excite and these in turn emit something red, orange light. If we add for example boric acid you see a green light.

Explanation:

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The field lines around one end of a bar magnet are shown below.
Vladimir [108]

Answer:

<em>The correct option here would be the third one because it is true. </em>

Explanation:

The diagram shows a bar magnet that has lines that are parallel to each other and are pointing towards one side of the rectangle.

The side of rectangle is South Pole because the arrows that are shown in the diagram are nothing but field lines and these lines tend to start from North Pole and the arrow shows moving inside that point hence that point it would be South Pole showing field lines ending at it.

6 0
4 years ago
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Masja [62]
Did u mean mass of potassium nitrate or the mass of nitrogen in potassium nitrate

6 0
3 years ago
Temperature and kinetic energy have, what type of relationship
VladimirAG [237]

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7 0
3 years ago
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A reaction mixture at 175 k initially contains 522 torr of no and 421 torr of o2. at equilibrium, the total pressure in the reac
zzz [600]
The chemical equation would be:

2NO(g) + O2(g) --> 2NO2 (g) 

<span>At equilibrium state, the partial pressure of the gases would be as follows : </span>

<span>NO = 522 - 2x </span>

<span>O2 = 421 - x </span>

<span>NO2 = 2x </span>
<span>- - - - - - - - - - - - -</span>
<span>943 - x = 748 </span>

<span>x = 195</span>

Calculating for Kp,

<span>Kp = (NO2)^2/ ((NO)^2 * (O2)) </span>

<span>Kp = (2 * 195)^2/ ((522 - 2 * 195)^2 * (421 - 195)) </span>

<span>Kp = 0.0386 </span>
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4 years ago
What does the Atomic Number tell you? the amounr of electronstprorons
tankabanditka [31]

Answer

Atomic number or proton number tells us the number of protons found in the nucleus of every atom of that element

Explanation:

6 0
3 years ago
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