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Vinvika [58]
3 years ago
13

How are plastic containers different from paper containers? How are they the same?

Chemistry
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

Paper is Not Reuseable like plastic.

Explanation:

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What characteristic of the light is affected by the amplitude of the light
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Answer:

I think B but I'm not sure.

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Question 8 of 8> 0 Attempt 2 A chemist needs to determine the concentration of a sulfuric acid solution by titration with a s
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Answer:

12.29 M

Explanation:

  • The reaction that takes place is:

H₂SO₄ + 2NaOH → 2Na⁺ + SO₄⁻² + 2H₂O

  • Now let's calculate the <u>moles of H₂SO₄ that were titrated</u>:

0.1284 M * 0.1915L*\frac{1molAcid}{2molNaOH} = 0.01229 mol H₂SO₄.

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0.01229 mol H₂SO₄ / 0.010 L = 1.229 M

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1.229 M*\frac{250mL}{25mL} = 12.29 M

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3 years ago
How many neutrons does element X have if its atomic number is 30 and its mass number is 70?
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The answer is 40.

We can solve this by finding out the number of protons, and neutrons. Atomic number of an element means the number of protons in that element. So, the atom has 30 protons if the atomic number is 30.

On the other hand, mass number is the total number of protons and neutrons, but not electrons, because they're too light comparing to the other 2. Therefore, we can simply solve the number of neutrons in the atom by subtracting the number of protons from the mass number. 70 - 30 = 40.

Therfore, the number of neutrons is 40.
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The eye can see colors because:
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The answer is A, I think.

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It is important to identify it because the two types of crust are made up of two different types of rock

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Hope i helped you

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