Iron bending is just a physical change because the iron has only changed shape but there is no new substance. Iron rusting is a chemical change because there is a new substance which is rust.
Answer:
B.
Explanation: hope this helps
Benzene
Answer:
thats cool mate
Explanation:
hope ya have a good day, im answering just for the points tbh
A straight line on a distance va time graph represents constant speed
Answer:
it has made the study of chemistry systematic and easy. it acts as an aid to memory
