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nitrogen and hydrogen reacted over an iron catalyst
Yes coal is a raw material. Raw materials are materials as they are found, and unchanged by a process. Coal is mined, but is used in the same form as it is dug up. Nothing needs to be done to the coal to make it useful, other than transporting it.
wood
which material used in mattress
ammonia and oxygen
Pigment provides the raw color in a crayon. When mixed with the wax and binder materials the temperature then determines the exact color of a crayon once it is molded or pressed into a cylinder.
Aluminium is used.
silicon
you dont make it out of materials you use wood&glass.
Actually there are really no raw ingredients in yogurt
Rubber
you use water to make a car
Just iron, since it is a raw material already.
Carbon, Hydrogen, and Oxygen
carbon and coke
plastic
Raw materials are the materials used to make a finished product. One example would be that mud, water and straw can be combined to make a house. The mud, water and straw are the raw materials, the house is the finished product.