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g100num [7]
4 years ago
12

Will give brainliest

Chemistry
1 answer:
11Alexandr11 [23.1K]4 years ago
7 0
Octane just prevents the air-fuel mixture from igniting before the spark plug does it. Firing the air-fuel mixture at the proper time gives you the maximum power your engine was designed to get. Using higher-octane gasoline than your engine is designed to utilize is only wasting your money.
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How does a chemist count the number of particles in a given number of moles of a substance?
jolli1 [7]
The chemist the count the number of particles (Atoms, Molecules or Formula Unit) in a given number of moles of a substance by using following relationship.

                              Moles  =  # of Particles / 6.022 × 10²³

Or,

                              # of Particles  =  Moles × 6.022 × 10²³

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What is the H+ concentration when pH is 2, 6, 7, 8, and 12?
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See below.

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