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3 years ago

What are the three major branches of natural science?

Chemistry

2 answers:

Shtirlitz [24]3 years ago

5 0

Physical science , earth science,and life science are the branches of natural science

alisha [4.7K]3 years ago

5 0

Answer:

• Earth and space science, life science, physical science is the correct answer.

Explanation:

natural science is the branch of science that deals with the study of natural events, based on experimental proof from research and experimentation.

The three major branches of natural science are

Earth and space science: is the study of the Earth, oceans, land, solar system and atmosphere. it covers all fields of the natural science that are associated with the Earth planet.

life science:The life sciences include the parts of science that include the scientific understanding of living organisms and life( plants, animals , microbes and human beings).

physical science:it deals with studies of non-livings things.

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When matter is a gass, a lot of the time it is ____?

Zielflug [23.3K]

I’d say most likely air, oxygen, or carbon dioxide

6 0

3 years ago

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What is the molarity of a KF(aq) solution containing 3.0 mol of KF in 2.00L of solution?

sergeinik [125]

Answer : The molarity of $KF$ in the solution is 1.5 M.

Explanation : Given,

Moles of $KF$ = 3.0 mol

Volume of solution = 2.00 L

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Moles of }KF}{\text{Volume of solution (in L)}}$

Now put all the given values in this formula, we get:

$\text{Molarity}=\frac{3.0mol}{2.00L}=1.5mole/L=1.5M$

Therefore, the molarity of $KF$ in the solution is 1.5 M.

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3 years ago

How many joules are required for melting 12.8g of ice at 0 degrees Celsius?

tino4ka555 [31]

Answer:

4,270 Joules

Explanation:

The heat of fusion of water is 334 j/g. So, the equation would be (12.8 g)(334 j/g) which comes to 4,270 joules.

Written out that's just twelve point eight times three hundred and thirty four.

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3 years ago

If there are 50 grams of U-238 on day zero of radioactive decay, how much will there be after 4.5 billion years? A) 0.0 grams B)

Natalija [7]

Answer:

= 25 g

Explanation:

Using the formula;

A = A₀ (1/2)^(t/h)

where A is the final amount,

A₀ is the initial amount of the substance,

t is the time and

h is the half-life of the substance,

In this case; the half life of U-238 h is equal to 4.47 billion years.

A = A₀ (1/2)^(t/h)

A = 50 (1/2)^(4.5 / 4.47)

= 24.88

<u> = 25 g</u>

7 0

3 years ago

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Why does hydrochloric acid have a higher boiling point than diatomic fluorine?Why does hydrochloric acid have a higher boiling p

beks73 [17]

Hydrochloric acid is polar which means it has stronger bonds between it's molecules, unlike diatomic fluorine that is non-polar and has weaker bonds. That's why it has a higher boiling point.

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4 years ago