Chem 2D

Question 0

A solid combination of atoms of two or more metals

Answer 0

Alloy

Question 1

The allotrope of carbon which is the hardest substance known

Answer 1

Diamond

Question 2

A layer that is physically attached to a product to protect, add color, or enhance its performance

Answer 2

Coating

Question 3

An alloy of zinc and copper

Answer 3

Brass

Question 4

Plastics are made from this substance

Answer 4

Petroleum

Question 5

The hardness of pencil lead is controlled by the amount of this substance mixed in with the graphite

Answer 5

Clay

Question 6

A solid substance with electrical conductivity between that of conductors and nonconductors

Answer 6

Semiconductor

Question 7

An allotrope of carbon composed of flat sheets of carbon atoms that can slip by one another easily

Answer 7

Graphite

Question 8

Elements that make up most semiconductors

Answer 8

Metalloids

Question 9

In electroplating, the power source provides these needed particles

Answer 9

Electrons

Question 10

Very thing glass tubes that carry voice or electronic messages, they are being used to replace copper wires

Answer 10

Fiber optics or optical fibers

Question 11

A very thin layer of atoms or molecules deposited in a substance

Answer 11

Film

Question 12

A substance composed of very small balls of carbon not linked to each other, appearing like a powder

Answer 12

Fullerene

Question 13

These engineered substances have high melting points and are strong at high temperatures which makes them food replacement for steel in turbine engines

Answer 13

Engineered ceramics

Question 14

A material that can conduct electric current without any electrical resistance

Answer 14

Superconductors

Question 15

The process of adding impurities to an element to improve its properties

Answer 15

Dopping

Question 16

The deposit of a thin layer of metal on the surface of an abject by a process involving oxidation reduction reactions

Answer 16

Electroplating

Question 17

Different forms of an element that each have distinctly different chemical or physical properties

Answer 17

Allotropes

Question 18

In electroplating the electrode at which reduction occurs

Answer 18

Cathode

Question 19

This engineered substance, a metal replacement for many uses is composed of carbon atom chains or rings with hydrogen and other atoms attached

Answer 19

Plastic

Question 20

Which nonmetal is a component of both steel and stainless steel

Answer 20

Carbon