Elements, Compounds And Mixtures Flashcards
What is an atom
The smallest part of an element that can exist
What is a molecule
When two or more atoms are chemically bonded together
What is a compound
It’s a pure substance that is made from more than one element, elements can be combined to make thousands of compounds that are chemically bonded together
What in a pure substance
It is an element or compound without any other substances
What is a mixture
It contains different substances that aren’t chemically bonded to each other. They can be separated
How does a pure substance affect the melting point of a substance
A pure substance contains only one substance and so it has a sharp melting point
How does an impure substance affect the melting point of a substance
An impure substance also contains other substances, they don’t have a sharp melting point because each substance has a different melting point.
How are properties affected in a mixture
The properties of individual substances maintain their own properties
How are properties affected in a compound
They will have different properties to the elements that made them
