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Likurg_2 [28]
3 years ago
14

What transition energy corresponds to an absorption line at 460 nm?

Chemistry
2 answers:
kykrilka [37]3 years ago
8 0
The answer is b I think I hope it right
galben [10]3 years ago
8 0

Answer:

B. 4.32 x 10-19 J is correct via a p e x

Explanation:

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Can anybody do this?
Alenkinab [10]

Answer:this should be c

Explanation:

4 0
2 years ago
Which scenario suggests that the results of an experiment are reliable?
BigorU [14]
The answer is B.

Hope this helps.
4 0
3 years ago
Read 2 more answers
(Giving Brainiest)<br><br> I nep help with this assessment!
kotykmax [81]

Answer:Could you give a more detailed explanation like what exactly do you need/want?

Explanation:

5 0
2 years ago
Read 2 more answers
Information-
tekilochka [14]

Answer:

So first thing to do in these types of problems is write out your chemical reaction and balance it:

Mg + O2 --> MgO

Then you need to start thinking about moles of Magnesium for moles of Magnesium Oxide. Based on the above equation 1 mole of Magnesium is needed to make one mole of Magnesium Oxide.

To get moles of magnesium you need to take the grams you started with (.418) and convert to moles by dividing by molecular weight of Mg (24.305), this gives you .0172 moles of Mg.

The theoretical yield would be the assumption that 100% of the magnesium will be converted into Magnesium Oxide, so you would get, based on the first equation, .0172 mol of MgO. Multiplying this by the molecular weight of MgO (24.305+16) gives us .693 g of MgO.

The percent yield is what you actually got in the experiment, and for this you subtract off the total mass from the crucible mass, or 27.374 - 26.687, which gives .66 g of MgO obtained.

Percent yield is acutal/theoretical, .66/.693, or 95.24%.

I'll let you do the same for the second trial, and average percent yield is just an average of the two trials percent yield.

Hope this helps.

6 0
3 years ago
I need an explanation
Rina8888 [55]
<span>The Kelvin scale is an absolute temperature scale, while the Celsius scale is not. When you convert a temperature from Celsius to Kelvin, you add 273 degrees to the temperature. However, when you calculate a temperature change, you get the same number, whether you use the Celsius or the Kelvin scale.</span>
8 0
3 years ago
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