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mylen [45]
3 years ago
10

How does the photoelectric effect show that light has some properties of a stream of particles.

Chemistry
2 answers:
Oliga [24]3 years ago
8 0
The photoelectric effect supports a particle theory of light in that it behaves like an elastic collision (one that conserves mechanical energy) between two particles, the photon of light and the electron of the metal.
BaLLatris [955]3 years ago
6 0
The photoelectric effect is the ability to knock electrons off of the atoms on the surface of a solid by shining a light at it. For some colors of light, it doesn’t matter how bright and intense the light is, no electrons separate from the solid. For other colors of light, it doesn’t matter how dim and weak the light is, electrons do separate from the solid. The dividing line between the colors that do and the colors that don’t is a certain wavelength of light, the one where each particle of light has at least enough energy to rio an electron away from an atom. If each particle of light has less energy than that, then no matter how many particles there are, they can’t separate electrons from their atoms. If each particle of light has more energy than that, than it doesn’t matter how few of them there are. A single particle can rip and electron away from the electron as it comes flying away from the surface.
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the concept of __________ is required for certain molecules because the localized electron model assumes electrons are located b
seropon [69]
The concept of resonance is required for certain molecules because the localized electron model assumes electrons are located between a given pair of atoms in a molecule.
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2 years ago
One and a half gallons of paint are used on refrigeration units which are then baked dry in a 275F oven for 2 hours. If the pain
brilliants [131]

Answer:

Hence the evaporation rate in pints per minute is 0.001583.

Explanation:

Now,

1.5 gallons of paint are used.

It has 5% solid, so total 95% of 1.5 gallon can evaporate(only the solvent part will evaporate).

95% of 1.5 gallon=(95/100)*1.5 = 1.425 gallons.

1gallon = 8 pints.

So 1.425 gallons=8*1.425 pints

=11.4 pints.

Evaporation requires 2 hours. That is 3600*2 seconds = 7200 seconds.

So evaporation rate= 11.4 pints/7200 seconds.

=0.001583 pints per second

4 0
3 years ago
Which moon phase does a solar eclipse occur in?
VARVARA [1.3K]

Answer:

full moon, i think

Explanation:

6 0
3 years ago
Read 2 more answers
I need help on 3 and 4 please I'm very confused and can not answer these questions I'm in sixth grade and it's hard
OverLord2011 [107]
D. Wind will always move from areas of high pressure to low pressure. It's the reason we have weather, or one of them. Temperature is another factor.

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4 0
3 years ago
how many molecule of carbon dioxide are needed to react with excess iron oxide to produce 11.6 g of iron
lesya692 [45]

Answer:

0.16 moles of Carbon

Explanation:

The balanced reaction equation:

2Fe_{2}O_{3} + 3C → 4Fe + 3CO_{2}↑

The mole ratio of Carbon to Iron is 3 : 4 (since Fe2O3 is in excess)

i.e 3 moles of C produces 4 moles of Fe.

If 1 mole of Fe - 55.8g of Fe

? moles - 11.6g of Fe

= \frac{11.6}{55.8} = 0.208 moles

But 3 moles of C - 4 moles of Fe

? moles of C - 0.208 moles of Fe

= \frac{3 *0.208}{4} = 0.16 moles of carbon.

I hope this explanation was clear and useful.

5 0
3 years ago
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