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vaieri [72.5K]
3 years ago
12

A car travelling

Chemistry
1 answer:
Jet001 [13]3 years ago
8 0

Answer:

816.33 kg

Explanation:

To solve this problem we'll need to keep in mind the <em>formula for the kinetic energy of an object</em>:

  • E = 0.5 * m * v²

Where E is the kinetic energy, m is the object's mass and v its velocity.

We<u> input the data given by the problem</u>:

  • 500000 J = 0.5 * m * (35 m/s)²

And <u>solve for m</u>:

  • m = 816.33 kg
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Ivenika [448]

Answer:

The reaction rate of the both questions remain unchanged.

Explanation:

      For question 1:  The reaction 1-iodo -2- methylbutane with cyanide ion is an SN2 reaction because the Alkyl halide is a primary alkyl halide. The rate of reaction is dependent on concentration of the nucleophile and the alkyl halide at the same. For the rate of reaction to be affected (increased or decreased), the concentration of nucleophile and the alkyl halide have to be altered.

      For question 2: The reaction of 2-iodo -2- methylbutane with ethanol is an SN1 reaction because the Alkyl halide is a tertiary alkyl halide. There are two-step reaction mechanism in this reaction. The first step is the rate determining step which determines the extent of the reaction and hence the rate of reaction. For the rate of reaction to be affected (increased or decreased), the concentration of the Alkyl halide alone will be altered. The rate of reaction is independent of the concentration of the nucleophile.

6 0
3 years ago
hi, help me please with both number 4 and 5, please be sure of your answer, first to answer gets brainliest!​
Evgesh-ka [11]

Answer:

4. mutualism

5. commensalism

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5. commensalism (the whale is unaffected)

8 0
3 years ago
A compound with the empirical formula ch2 has a molar mass of 98 g/mol what is the molecular formula for this compound ?
madam [21]
Approximate molecular masses:
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Molecular mass of H = 1

Let n = moles required for CH₂.
Then
nCH₂ = 98
n(12 + 2*1) = 98
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Answer: The molecular formula is 7CH₂

7 0
3 years ago
Which of these data points is the most reliable?
Sonja [21]

Answer:

third point

Explanation:

omniscient because it gives info about every character instead of one  

hope this helps

5 0
2 years ago
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siniylev [52]
That is not a question/problem and makes no sense whatsoever
4 0
3 years ago
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