Fechar
What are Elements?
What are the smallest particles of an element that can exist?
What does each element have?
Where are all the symbols and names for all the known elements are shown?
What does a compound contain?
Some elements have their atoms joined to each other in small groups called...?
What does the chemical formula of a compound tell you?
The properties of a compound are...
How can chemicals be made to react?
What are the 2 ways you can tell that a chemical reaction has occurred?
Most chemical reactions also involve an _______ ______. This is usually in the form of ____, for example in burning (combustion).
What is always formed in a chemical reaction? And are they easily reversible?
How do some chemical reactions take place?
What do other chemical reactions need to start off?
