Question

Which one of the following is an example of a redox reaction?

A. Using baking soda and vinegar in a cookie recipe
B. Rust on a bicycle
C. Mixing sodium hydroxide with hydrochloric acid to form table salt and water
D. Deposits of solid magnesium and calcium oxides in pipes

Answer 1

I think D

Answer 2

(╯°□°）╯︵ ┻━┻)

Answer 3

it is d

Answer 4

thanks