A pure element or compound contains only one substance, with no other substances mixed in. Impure materials may be mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.
Does this show an element, a mixture or a compound?
Is water an element, compound or mixture?
What is the name of the process that occurs when salt is added to water and then stirred until the solid is no longer visible?
Is air an element, compound or mixture?
In what type of substance does diffusion take place most quickly?
In a solution of copper sulfate, what is the solvent?
The copper sulfate
What name is given to a substance that contains two types of atom that are not chemically joined together?
In a salt solution, what is the solute?
The salty water
What process allows you to smell freshly baked bread in a supermarket, even when you are far from the bakery aisle?
What happens to the boiling point of water when salt is added to it?
It no longer boils at exactly 100 degrees Celsius
It boils at exactly 100 degrees Celsius
It will never boil