Respuesta :
Answer ;
D
Explanation;
As much salt as you can with lots of mixing to make a saturated. Solution. Once again we get tarnished penny and dip it in and there.
Answer:
c.Dip it in vinegar and salt
Explanation:
why we make dully penny shiny again
Cowper oxide dissolves in a mixture of weak acid and table salt-and vinegar is an acid. You could also clean your pennies with salt and lemon juice or orange juice, because those juices are acids, too.