2 years ago

Use the changes in oxidation numbers to identify which atoms are oxidized and which are reduced in each reaction.

1 answer:

5 0

You didn't include much information as to what you were referring too, however I answered a similar question recently to a friend so I'm hoping this is the same question in complete as to yours, if not I apologize.

a.) 2Na(s) + Cl2(g) -----> 2NaCl(s)
Na --> Na+1 is oxidized
Cl2 --> Cl- is reduced

b.) 2HNO3(aq) + 6HI(aq) ----> 2NO(g) + 3I2(s) + 4H2O(l)
N+5 --> N+2 is reduced
I-1 --> I2 is oxidized

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dlinn [17]

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2 years ago

A substance with a density of 2.70 g/mL occupies a volume of 21.3 mL. What is the mass of the sample? Report your answer in unit

katen-ka-za [31]

We know the formula of the density:
ρ = $\frac{m}{V}$ ;
So the mass will be equal to:
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3 years ago

Convert 10mg x cm/s^2 to Newtons (kg x m/s^2)

AlexFokin [52]

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