Zusammenfassung der Ressource
CHEMISTRY 8F
- ELEMENTS CAN JOIN TOGETHER TO MAKE COMPOUNDS.
- A COMPOUND CONTAINS 2 OR MORE ELEMENTS JOINED TOGETHER.
- THE NAME OF THE COMPOUND TELLS YOU THE ELEMENT THAT ARE IN IT.
- COMPOUNDS THAT ARE MADE FROM 2 ELEMENTS ALWAYS HAVE A NAME WHICH ENDS IN IDE.
- ELEMENTS ARE SIMPLE SUBSTANCES WHICH CANNOT
BE SPLIT UP BY CHEMICAL REACTIONS.
- ATOMS ARE THE SMALLEST PARTICLES OF AN ELEMENT
- Atoms of an element are all the same.
- Compounds can react chemically by mixing them with other chemicals, or by
using heat or electricity. You can tell that a chemical reaction has occurred if there
is a colour change or when a gas is given off
- Most chemical reactions also involve an energy change. This is usually
in the form of heat, but can also involve light being given off, for
example, in burning (combustion).