Question

Which of these changes is an example of a physical change?

A. sodium and chlorine form table salt
B. polishing a gemstone
C. bread molds
D. Batter is baked into a cake​​

Answer 1

a

Step-by-step explanation:

because sodium and chlorine are in a solid form

Answer 2

B. polishing a gemstone

Step-by-step explanation:

the chemical makeup of the gemstone remains the same, whether polished or not. no reactions occured during that course of action, so it would definitely be considered a physical change.

hope this helped, good luck!