elements, compounds, mixtures

Question 1

how are compounds formed?

Answer 1

a substance formed when two or more elements chemically combine. The elements cannot be separated by physical means.

Question 2

what is a mixture?

Answer 2

two or more substances not chemically combined that can be separated by physical means.

Question 3

what is an element?

Answer 3

one type of atom, on its own or joined to another atom of the same type

Question 4

is a compound a pure substance?

Answer 4

yes

Question 5

mixtures vs compounds melting and boiling points

Answer 5

mixtures have a range of boiling and melting points whilst compounds have sharp boiling and melting points

Question 6

do mixtures or compounds have properties of individual elements?

Answer 6

mixtures

Question 7

what is a solvent?

Answer 7

the liquid that a substance dissolves in

Question 8

what is a solute?

Answer 8

the solid that dissolves in a liquid

Question 9

what is a solution?

Answer 9

mixture of solute and solvent

Question 10

what is a particle?

Answer 10

very tiny spheres that everything is made of