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Murrr4er [49]
2 years ago
7

How many protons and neutrons are there in an atom of 3.K?

Chemistry
1 answer:
pickupchik [31]2 years ago
3 0

Answer:

A: 11 protons and 21 neutrons

Explanation:

Hopefully this helps!

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How does wavelength affect the pitch of a sound?
boyakko [2]

Answer:

D

Explanation:

because the higher the wavelength the shorter the pitch and the shorter the wavelength the higher the pitch

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What observation do you expect if you react an acid and a base?
aniked [119]

"They react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water."

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Calculate the extinction coefficient where the concentration is in mg/ml and the path length is 1 cm. What dilutions of the stoc
Airida [17]

Complete Question

The complete question is show on the first uploaded image

Answer:

This is shown on the second,third , fourth and fifth image

Explanation:

This is shown on the second,third , fourth and fifth image

4 0
3 years ago
Which of these elements is this group?
sergey [27]

Answer:

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Explanation:

In the periodic table, an element with two (2) valence electrons is found on group 2. Group 2 is a group of the periodic table that harbors element called ALKALINE EARTH METALS. As the name implies, they are metals that possess shiny and solid characteristics at room temperature.

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3 0
2 years ago
Which of these compounds is not a molecule?<br><br> A) MgO<br><br> B)SO2<br><br> C)CO<br><br> D) CS2
DerKrebs [107]
A) MgO
Hope that helps
5 0
2 years ago
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