. 10. Look at the given picture and answer the following questions. a) What is being depicted here? b) Write the word equation for the change that occurred. c) What factors are responsible for this change to occur? d) Write any one preventive measure to protect things made of iron.
Answers
Answer:
Inertia- It is the inability of the body to change by itself its state of rest or uniform motion or direction. Types of Inertia- It is of three types-(1)Inertia of rest (2) Inertia of motion(3) Inertia of direction. (1) Inertia of rest - It is the inability of the body to change by itself its state if rest.
Answer:
rusting of iron
The formation of rust requires iron, water and oxygen. Although it's a complex process, the chemical equation is simply 4Fe + 3O2 + 6H2O → 4Fe(OH)3
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.
Coat it with Oil - Use of oil or grease significantly reduces the chances of developing rust in iron. Basically, oil or grease form a protective layer over iron just as paint does and therefore prevent rust formation.