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balu736 [363]
3 years ago
15

I NEED HELP ASAP DON'T JUST ANSWER FOR POINTS OR YOU WILL GET REPORTED!

Chemistry
2 answers:
White raven [17]3 years ago
7 0

Answer:

The number of neutrons is entirely dependent on the Mass number of the particular atom. The standard mass for potassium is 39.

Potassium is element number 19, so it has 19 protons and 19 electrons in the neutral atom. It has therefore 39-19 = 20 Neutrons.

Explanation:

Lelu [443]3 years ago
4 0

Answer:

Number of Protons 19

Explanation:

Number of Neutrons 20

Number of Electrons 19

Melting Point 63.65° C

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Alekssandra [29.7K]

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Explanation:

↓↓↓↓↓↓↓

Density is the amount of mass in a given volume. It's a derived unit of measure. It is equal to mass divided by volume. It's measured in units such as grams per cubic centimeter and grams per milliliter. Density is the ratio of mass to volume. Density is a physical property of an object. It is degree of compactness of a substances. Relative density is used to separate solids, liquids, and gases. The gas in the container rises to the top because it has the least density. The liquids separate into individual layers based on their relative densities. The least dense liquid is on top. The most dense liquid is on bottom. The solids sink to the bottom of the container because they have the greatest density.

Hope this helps!

Thank you for posting your question at here on Brainly.

-Charlie

4 0
3 years ago
Can someone please help me and ill mark u as brainlest
kodGreya [7K]

Answer:

Sure i'll help u! :D

Explanation:

for #1 you do A. I'm not so sure on it tho

For #2 it should be C.

If that didn't help, You can look it up on a website. ok?

5 0
3 years ago
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Which one is it ASAP
Gelneren [198K]
4 is D. 5 is C. 6 is D i guess. 7 is D.
6 0
3 years ago
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The temperature of a sample of a substance changes from 10.°C to 20.°C. How many Kelvin does the temperature change?
Vanyuwa [196]

Answer:

10 kelvin

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10 c. =283.15 k.

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7 0
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Marysya12 [62]

Answer:

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A neutralization reaction is a reaction between an acid and a base. Products of this type of reaction is water and a salt. The pH of the salt product would depend on how strong or weak the base and acid would be when they react with each other. Although the characteristics of bases and acids are practically polar opposites, when combined, they cancel each other our producing a neutralized product.

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