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IceJOKER [234]
3 years ago
12

Best light to make a rainbow

Chemistry
1 answer:
-BARSIC- [3]3 years ago
4 0
The best light to make a rainbow is the sun light 
hope it helps
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What’s a physical change in the movie theader
kirill [66]
A physical change that may happen in a movie theater is:

You accidentally step on a piece of popcorn.

That piece of popcorn is still made up of the same things but LOOKS different. Therefore, the piece of popcorn went through a physical change.

I hope this helps!
6 0
3 years ago
Which describes the amplitude of a wave when it carries more energy?
MrMuchimi

Answer:

It is higher.

Explanation:

The amplitude of a wave that carries more energy is usually higher.

The energy carried by a wave is related to the amplitude in such a manner that it is proportional to the square amplitude.

Amplitude is the maximum vertical displacement of a wave moving along its path.

  • Energy of wave and its amplitude are directly proportional to one another.
  • If the energy of wave is doubled, the amplitude is quadrupled.
  • So, the higher the energy of a wave, the more its amplitude.

7 0
2 years ago
Read 2 more answers
Fe3O4(s) + 4H2(g)3Fe(s) + 4H2O(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings w
alexandr402 [8]

Answer:

dS= 1.79*169.504

j/k = 303.41 j/k

Explanation:

Fe3O4(s) + 4H2(g) --> 3Fe (s)+ 4H2O(g)

dS(Fe3O4) =146.4 j/k

dS(H2) =130.684

dS(Fe) =27.78

dS(H2O) =188.825

dSrxn = dS[product]-dS[reactants]

= 3*dS(Fe)+ 4*dS(H2O)-[1*dS(Fe3O4)+ 4dS(H2)]

= [3*27.78 +4*188.825-146.4 -4*130.684] j/k = 169.504 j/k

This is the dS for 1mole Fe3O4

for 1.79 mols Fe3O4

dS= 1.79*169.504 j/k = 303.41 j/k

7 0
3 years ago
How does an atom behave if it has a full octet of valence electrons?
erastova [34]

Answer:

A) Very stable.

Explanation:

A valence electron ring takes up to 8 valence electrons. If it has full rings, it is stable.

6 0
3 years ago
Read 2 more answers
What major component of water affects most its properties?
Alona [7]

Answer:

C. polarity

Explanation:

Water is polar that is why it is a universal solvent.

8 0
3 years ago
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