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Stells [14]
3 years ago
14

Please Need help asap

Chemistry
1 answer:
ruslelena [56]3 years ago
4 0

Answer:

A

Explanation:

The number of protons and neutrons of an element is the same. the electrons are the only thing that can differ.  The atomic number equal the protons and neutrons.

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What is the work done when a force of 5 N is applied to a ball and it moves 8000 cm?
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Answer:

Explanation:Given;

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time of force application, t = 15 s

Work done is given as the product of force and displacement. Since the car is unable to move, then the displacement is zero and the work done is zero.

Work done = Force x displacement

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Therefore, the work done is zero.

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3 years ago
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A certain amount of hydrogen peroxide was dissolved in 100. ml of water and then titrated with 1.68 m kmno4. what mass of h2o2 w
Aleksandr [31]

The solution for the problem is:

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Applying what I have said earlier:

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8 0
4 years ago
1. What coefficient of H+ balances the atoms in the following half-reaction?
lubasha [3.4K]
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4 0
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timofeeve [1]

Answer:

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Explanation:

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