Elements, mixtures and compounds (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is an atom?
What is an atom?
The smallest part of an element
How must chemical symbols always start?
How must chemical symbols always start?
With a capital letter
Approximately how many different elements are there?
Approximately how many different elements are there?
100
What is an element?
What is an element?
A substance made of one type of atom
How do compounds form?
How do compounds form?
Atoms of different elements join in a reaction
What do compounds have that is shown in their chemical formula?
What do compounds have that is shown in their chemical formula?
Fixed proportions
How many hydrogen atoms are in one water molecule ()?
How many hydrogen atoms are in one water molecule ()?
2
What is a mixture?
What is a mixture?
Substances not chemically bonded
What happens to the properties of components in a mixture?
What happens to the properties of components in a mixture?
They keep their original properties
What happens to iron in an iron and sulfur mixture?
What happens to iron in an iron and sulfur mixture?
The iron stays magnetic