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3 years ago

8

Can anyone please help me

1 answer:

mixas84 [53]3 years ago

4 0

Q1. Chemical, Physical, Physical, Physical
(l am not 100% sure about the 4th answer)

Q2. All of the above

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Which of the following statements is accurate

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B. If an objects velocity changes, it is either experiencing acceleration or deceleration
C. If an object is said to be decelerating, its velocity must be decreasing.
D. If an objects velocity remains constant, its acceleration is zero.

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Explanation:

The reaction equation will be as follows.

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Hence, moles of Na = moles of electron used

Therefore, calculate the number of moles of sodium as follows.

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Relation between electrical energy and Q is as follows.

E = $Q \times V$

Hence, putting the given values into the above formula and then calculate the value of electricity as follows.

E = $Q \times V$

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Hence, $\frac{9.4 \times 10^{7}}{2.77 \times 10^{-7}}$ kWh

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