21. A copper wire can conduct electricity whether the wire is very thin or very thick. Is electrical conductivity an extensive property or an intensive property? Why?

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

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explanation:

the marks go by 4s