Is the reddish-brown metal a physical or chemical change?

Answer 1

Neither. Hash Brown refers to a style of cooking potatoes in which the potatoes are shredded raw, flattened into about a 1/2" thickness and then browned on both sides by pan frying either on a griddle or in a frying pan using a small amount of fat.

When the potatoes are first peeled and sliced however, they can start to turn brown if exposed to oxygen and not cooked due to enzymatic browning (a chemical reaction). When the hash browns are fried, the exterior will turn brown through a chemical process known as the "Maillard Reaction."

Answer 2

colour of any metal is a physical property, not chemical

Answer 3

chemical

Answer 4

physical