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Alecsey [184]
3 years ago
9

HELP PLEASEEEE The speed of a motorcycle increases from 10 m/s to 50 m/s in 9 seconds. What is its acceleration? *

Chemistry
1 answer:
lyudmila [28]3 years ago
3 0

Answer:

4.444... m/s

Explanation:

Because it increases by 40 m/s in 9 seconds so 40/9= 4.444... m/s

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Determine the number of moles in 4.21 x 10^23 molecules of CaCI2?????
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Explanation:

Given parameters:

Number of molecules = 4.21 x 10²³ molecules

Unknown parameters:

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A mole can be defined as the amount of a substance that contains the avogadro's number of particles i.e 6.02 x 10²³

  To find the number of moles:

          Number of moles = \frac{number of molecules }{[tex]6.02 x 10^{23}}[/tex]

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Number of moles of CaCl₂ = 0.699moles

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mole calculation brainly.com/question/13064292

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