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sertanlavr [38]
3 years ago
14

Which metal is the most reactive with water? A. AI B. Cu C. Fe D. K

Chemistry
1 answer:
Zolol [24]3 years ago
4 0

the answer would be d!! hope this helps

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How many moles are in 2.31*10^21 atoms of lead
Anon25 [30]
Hey there!:

Molar mass Lead  ( Pb ) = 207.2 g/mol

Therefore:

1 mole Pb --------------------- 6.02*10²³ atoms
? moles Pb -------------------- 2.31*10²¹ atoms

moles Pb = ( 2.31*10²¹ ) * 1 / ( 6.02*10²³ ) = 

moles Pb = ( 2.31*10²¹ ) / ( 6.02*10²³ ) = 

=> 0.00383 moles of Pb

Hope this helps ! 
6 0
3 years ago
Plz help..<br> How to name alcohols...
earnstyle [38]

Answer:

Alcohols are usually named by the first procedure and are designated by an -ol suffix, as in ethanol, CH3CH2OH (note that a locator number is unnecessary on a two-carbon chain). On longer chains the location of the hydroxyl group determines chain numbering. For example: (CH3)2C=CHCH(OH)CH3 is 4-methyl-3-penten-2-ol.10  

Explanation:

3 0
2 years ago
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Jshsbdbfbbbfffbbdvdvsgssggdhdh
11Alexandr11 [23.1K]
Very nice english.......
8 0
2 years ago
He then takes a powerful magnet and positions it below the table and the keys. He finds that he is able to drag the keys along t
Mamont248 [21]

C. magnetic forces act at a distance

Explanation:

Since he was able to drag the keys along the table by moving the magnet, it shows that magnetic forces acts a distance.

Magnetism is a property exhibited by a wide range of materials.

Around a bar magnet, there are field forces in which the forces of the magnets are felt.

  • Magnetic forces are non- contact forces. They don't need to be together to exert their force.
  • This is why magnetic forces act at a distance.

learn more:

Electromagnet brainly.com/question/2191993

#learnwithBrainly

7 0
3 years ago
How are starch cells in plants and fat cells in animals similar and different
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I can not answer your question because i am a  person who is not smart
 and will never become smart
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3 years ago
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