2 years ago

Lenses are made to have different focal points. What two properties of a lens

Chemistry

1 answer:

Novay_Z [31]2 years ago

3 0

The correct answer is letter C

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Which of the following is the ground state electrons configuration of the F ion

Vinil7 [7]

Answer:

That leaves us with: 1s2 2s2 2p6 And that is the electron configuration for F- , the Fluoride ion.

Explanation:

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2 years ago

Which of the following best describes the structure of a protein?

Evgen [1.6K]

Answer:

I'm pretty sure its d.

Explanation:

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3 years ago

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Explanation:

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3 years ago

An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?

ludmilkaskok [199]

<h2>Answer: # of neutrons = 9</h2>

<h3>Explanation:</h3>

# of neutrons = mass number - atomic number

= 17 - 8

= 9

<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>

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2 years ago

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My name is Ann [436]

Answer:

The answer is B

Explanation:

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2 years ago

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