Question

When iron and oxygen combine to form rust, what is/are the products?
A. Iron
B. Oxygen
C. Iron and oxygen
D. Rust

Answer 1

Rust

Answer 2

now that ur here hers my utter question

Answer 3

Which is the only physical change?
A. the souring of milk
B. the burning of oil
C. the melting of ice
D. the rusting of iron

Answer 4

C) the melting of ice
all the other choices are processes that produce additional chemicals not present in the beginning of the reactions.

in the melting of ice, no new substances or chemicals are formed. water is present in the beginning and still present in the end. it's just in the liquid form instead of the solid form.