The formation of rust or the iron oxide, is by the chemical reaction between iron and atmospheric oxygen. Hence, it is a chemical change involving the formation of new product.
A chemical change is accompanied by the making or breaking or chemical bonds and the formation of new products. Whereas, a physical change does not involve the change in chemical bond. Phase transitions, change in size,shape etc. are physical changes.
The rust formed in the iron material is iron oxide or Fe₂O₃. This process of forming rust by the action of air or water is called corrosion. Iron reacts with atmospheric oxygen or oxygen from water forms the rust.
The formation of rust makes the material destroy and to prevent this process some anticorrosive materials have to be applied. Hence, formation of rust is a chemical change.
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B. You build a tall sand castle at the beach. After wave washes it over, the sand castle turns into a big pile of sand
C. Boiling water turns a raw egg into a hard boiled egg
D. Max divided cookie dough into small pieces on a cookie sheet.
E. A loaf of freshly baked bread tastes better and looks much different than a lump of bread dough
F. A glass of water is left in the Sun. In the time, the water evaporates leaving the glass empty.
Answer: The answer is C
Explanation: I just tried it
Answer:
c
Explanation:
Answer:
kinetic energy
Explanation: