The sun's surface temperature is closest to
a. 3,500 k
b. 6,000 k
c. 11,000 k
d. 30,000 k

The answer is b because the sun's surface temperature is 5,778 K.

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips.