2 years ago

Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?

Chemistry

2 answers:

nadya68 [22]2 years ago

7 0

Answer:

c the energy in her arm decrease

Mashutka [201]2 years ago

6 0

Answer:

it's either C or D try C

srry if im wrong

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What compound is formed when methyloxirane (1,2-epoxypropane) is reacted with ethylmagnesium bromide followed by treatment with

Pavlova-9 [17]

Answer:

Pentan-2-ol

Explanation:

On this reaction, we have a Grignard reagent (ethylmagnesium bromide), therefore we will have the production of a carbanion (step 1). Then this carbanion can attack the least substituted carbon in the epoxide in this case carbon 1 (step 2). In this step, the epoxide is open and a negative charge is generated in the oxygen. The next step, is the treatment with aqueous acid, when we add acid the hydronium ion ( $H^+$ ) would be produced, so in the reaction mechanism, we can put the hydronium ion. This ion would be attacked by the negative charge produced in the second step to produce the final molecule: "Pentan-2-ol".