C15 - Using our Resources Flashcards
1
Q
What is the word equation for rusting?
A
iron + oxygen + water -> hydrated iron3+ oxide
2
Q
What is an alloy?
A
A mixture of metals, that is harder than a pure metal due to irregular layering caused by different sized atoms.
3
Q
What is a steel?
A
An alloy comprised of iron, and other elements, usually carbon.
4
Q
What are the characteristics of high-carbon steels?
A
Very hard, but brittle.
5
Q
What are the characteristics of low-carbon steels?
A
Soft, and easily shaped.
6
Q
What are the characteristics of stainless steels?
A
Resistant to corrosion.
7
Q
What is the difference between thermosoftening and thermosetting polymers?
A
Thermosoftening polymers melt easily when heated, thermosetting polymers will not melt, but char if heated to extreme degrees.
