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defon
3 years ago
14

you are a scientist working on increasing the effeciciency of appliances to waste less electricity.Yoy are running experiments m

easuring the input,output and waste energy from devices.What type of diagram can you use to best display your results? A.Energy level diagram,B.Thermometer scale C.Pie Chart,D.Dankey diagram ?
Chemistry
1 answer:
JulsSmile [24]3 years ago
6 0
I'm pretty sure its Sankey Diagram.
(Edit: Turned Dankey to Sankey which is the proper name for the diagram)
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Some common substances and their chemical formulas are listed in the chart.
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Answer:

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Explanation:

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2 years ago
What is the law of multiple proportions
dmitriy555 [2]
When two element combine to form more than one compound i hope this helps you with work have a nice day :)
7 0
3 years ago
Alcano con 1 carbono?
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5 0
2 years ago
How many moles of electrons are transferred when 2.0 moles of aluminum metal react with excess copper(II) nitrate in aqueous sol
mojhsa [17]

Moles of electrons:

The moles of electrons that are transferred are 12F

A balanced equation:

2 moles of Aluminium metal react with excess copper(II) nitrate.

2Al + 3Cu{(NO_3)}_2  \rightarrow 2Al{(NO_3)}_3 +3 Cu

Given:

Moles of Aluminium = 2

As Aluminium goes from 0 to +3 oxidation state

Al \rightarrow Al^{3+} + 3e^-

And copper goes from +2 to 0

Cu^{2+} + 2e^-\rightarrow Cu

On balancing the number of electrons we get:

For 1 mole of Al 6e^- is required.

Therefore for 2 moles of Al,

Total (2\times6)F mole of electrons

Where F= Faraday's constant= 96500 C

So, 12F moles of electrons are transferred.

Learn more about Faraday's Law here,

brainly.com/question/27985929

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4 0
1 year ago
What is one of the primary unanswered questions about the origin of the universe? What type of elements formed first? Approximat
torisob [31]

Answer: last option, what came before the big bang?

Explanation:

The big bang theory states that the universe started as a dense nucleus of matter: a huge amount of matter concentrated in a tiny spot.

This is the conclusion of equations and evidences that prove that the universe has been and continuous to expand: since it has been expanding, there was a moment when it was as small and dense as it is possible.

So, the expansion is the result of violent explosion.

The time during which the expansion has been happening (this is how long ago the big bang occured) has been estimated thanks the the observation of the speed of recesion of the galaxies, but nothing can be told about what came before the bing bang occured.


7 0
3 years ago
Read 2 more answers
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