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gladu [14]
3 years ago
14

How does coffee keep you awake?

Chemistry
2 answers:
MrRa [10]3 years ago
7 0

Answer:

Caffeine

Explanation:

Caffeine is packed with protein that provides energy

ivanzaharov [21]3 years ago
4 0

Coffee keeps you awake due to the caffeine in it. Caffeine is considered a psychoactive drug which energizes people by releasing a chemical in the body.

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Which half-reaction is most easily oxidized?
netineya [11]
From the ones that you are showing me <span>the more positive the potential the more likely: </span>

<span>Fe+3 + e- ---> Fe+2
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7 0
3 years ago
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Anouk does 150 J of work using a hammer to pull a nail out of a piece of wood, and the hammer does 105 J of work on the nail. Wh
astraxan [27]
The efficiency of any machine is given by:

efficiency = output obtained / input given

Substituting the values,
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Converting this to a percentage, the efficiency of the hammer is 70%.
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3 years ago
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CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google


Hopefully this was clear and you understood!

3 0
3 years ago
4. Which atomic particles are found inside the nucleus of an atom?
grin007 [14]

Answer:

the atomic particles in the necluse are called ions which are positive and negive charged atoms

Explanation:

6 0
3 years ago
A salt forms in the reaction of barium with chlorine what is the most likely formula unit of this salt
Mashcka [7]
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glucose 

BeF2 

last question answer 3 strong electrostatic requires a lot of energy
does this help though??</span>
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2 years ago
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