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Readme [11.4K]
2 years ago
13

What are 1a 3b and 7a explains on the periodic cable

Chemistry
1 answer:
Korvikt [17]2 years ago
5 0

Answer:

Explanation:

1a=group 1 elements(H,Li,Na,K....)

3b=group 3 elements (Sc,Y,La....)

7a=group 17 elements (F,Cl,Br,I....)

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Which is the electron configuration for bromine?
r-ruslan [8.4K]

Answer:

bromine atomic number =35

1s²2s²2p^6 3s² 3p^6 4s² 3d^10 4p^5.

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3 years ago
Which of the following systems has potential energy only?
DIA [1.3K]

Answer:

a bird sitting on a branch

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3 years ago
What is difference between ∆H and ∆H°
Elena-2011 [213]

If it is shown as ∆H , then it means that a specific chemical reaction is undergoing heat in Kelvin(K). If it is shown as ∆H° , then it means that a specific chemical reaction is undergoing heat in Celsius(C⁰).

Hope this is the answer you are looking for mate!

If it is correct then please mark my answer as the brailiest! :)

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3 years ago
What is the scientific term for rocks made in lava?
Elden [556K]

The answer is d. extrusive.


The other term for it is <em>igneous rock</em>. Igneous rock is made in lava, and another term for igneous rock is extrusive rock.


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5 0
3 years ago
Read 2 more answers
You unknowingly run over a small nail while driving and it punctures your tire. When you are getting in your car the next mornin
Norma-Jean [14]

The nails can puncture the tires of the vehicles making them deflated after a while. The process of tire deflation due to a puncture is due to the process called an effusion. Thus, option c is correct.

<h3>What is effusion?</h3>

Effusion is the process that defines the escape of the fluids or gases from a system through an outlet with a small diameter compared to the mean free path of the molecules.

When a tire is punctured then the gas from the tire starts to move out through the hole through effusion. This leads to deflation of the tire after some time as all the gas present inside had moved out completely.

Therefore, option c. a punctured tire deflates due to effusion.

Learn more about effusion here:

brainly.com/question/2823560

#SPJ1

7 0
2 years ago
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