2 years ago

Some pls help to give 20 points

1 answer:

4 0

Answer:

Neon= -10+10= 0 on no change

oxide=-10+8=-2

copper=-27 +29 = 2

tin= -50 +50 = 0 or no change

Step-by-step explanation:

Its basically subtraction ( i pretty sure thats right)

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Maksim231197 [3]

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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mars1129 [50]

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