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jenyasd209 [6]
3 years ago
8

Explain how lubricating the wheels of the skateboard can increase the speed of the girl

Chemistry
2 answers:
weqwewe [10]3 years ago
8 0
Less friction to stop the wheel from turning
ohaa [14]3 years ago
5 0

Answer:

When oil, grease or graphite is applied

between the moving part of a machine,

a thin layer is formed there and moving

surfaces do not directly rub against each

other (Fig. 12.13). Interlocking of

irregularities is avoided to a great extent.

Movement becomes smooth. The

substances which reduce friction are

called lubricants.

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I believe the correct answer would be reactants. When heat is added to the reaction mixture, the formation of reactants would be favored since the reaction is an exothermic reaction. Hope this answers the question. Have a nice day.
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Answer:

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Explanation:

Moles are the standard unit at which you can compare values, and copper has fewer moles than Silver nitrate, so in a reaction, it would be used up first, leaving Silver nitrate in excess.

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