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olga2289 [7]
2 years ago
9

Its Accelerated Science 8th grade​

Chemistry
1 answer:
skelet666 [1.2K]2 years ago
8 0

In my opinion I believe it would be motion because depending on how fast the person is going it would determine the outcome of the race

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EXPLAIN how to identify the reducing agent in a reaction of magnesium with oxygen
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Explanation:

Mg+O>MgO

Here the mg loses it electron and is oxidised and oxygen gains and is reduced.

Mg(2+)and O(2-)

Mg is a reducing agent it makes oxygen to be reduced while itself being oxidised and vice versa.

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How many ml of 2.50 M NaOH solution are required to make a 525 mL of 0.150 M?
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Answer:

31.5 mL of a 2.50M NaOH solution

Explanation:

Molarity (M) is an unit of concentration defined as moles of solute (In this case, NaOH), per liter of solvent. That is:

Molarity = moles solute / Liter solvent

If you want to make 525mL (0.525L) of a 0.150M of NaOH, you need:

0.525L × (0.150mol / L) = <em>0.07875 moles of NaOH</em>

<em />

If you want to obtain these moles from a 2.50M NaOH solution:

0.07875mol NaOH × (1L / 2.50M) = 0.0315L = <em>31.5 mL of a 2.50M NaOH solution</em>

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