Unit 1 Topic 2: Properties and structure of materials

Question 1

The definition of an element is a…

Answer 1

The definition of an element is a substance that cannot be broken down into other substances during a chemical reaction. Elements are only made of singular atoms that all have the same number of protons.

Question 2

A compound is…

Answer 2

A compound is something that forms when one or more atoms of an element chemically bond together. Compounds are pure substances

Question 3

Heterogeneous mixture are…

Answer 3

A Heterogeneous mixture are mixtures that have a non-uniform composition which means each component of the mixture is easily identifiable

Question 4

Homogeneous mixture are…

Answer 4

Homogeneous mixture are mixtures that have a uniform composition. Individual components cannot be identified.

Question 5

Ionic compounds are…

Answer 5

Ionic compounds are compounds that are formed between a metal and a nonmetal.

Question 6

Pure substances are…

Answer 6

Pure substances are substances that have a definite and constant composition. They are made out of a singular element or compound.

Question 7

Malleability describes…

Answer 7

Malleability describes the ability of a metal to be shaped or flattened by the use of a hammer or rollers.

Question 8

Melting point is the…

Answer 8

Melting point is the temperature in which a material turns from solid to liquid form.

Question 9

What compounds can conduct electricity?

Answer 9

Ionic compounds (in liquid form) and metallic compounds can conduct electricity.