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It is most important for a chemist to be able to write correctly balanced equations and to interpret equations written by others. It is also very helpful if he/she knows how to predict the products of certain specific types of reactions.
The Activity Series of the metals is an invaluable aid to predicting the products of replacement reactions.
Balancing Chemical Equations
This is the classic version of Chembalancer that teaches you how to balance equations for the first time. To play it, just press the "Start Game" button above.
Before You Begin:
Before You Begin:
Naming Compounds - General Chemistry
Intermolecular forces are the forces of attractions that exist between molecules in a compound. These cause the compound to exist in a certain state of matter: solid, liquid, or gas; and affect the melting and boiling points of compounds as well as the solubilities of one substance in another. Solid: A state of matter in which the matter is not compressible nor does it flow.
Key Concepts A metal is a lattice of positive metal 'ions' in a 'sea' of delocalised electrons.
Key Concepts A pure substance: cannot be separated into 2 or more substances by physical or mechanical means is homogeneous, ie, has uniform composition throughout the whole sample its properties are constant throughout the whole sample its properties do not depend on how it is prepared or purified has constant chemical composition A mixture:
Mixtures and Pure Substances Return to Matter Menu A Classification Scheme for Matter
A Discussion of Units
Dimensional analysis (also known as the factor-label method or unit-factor method) is by far the most useful math trick you'll ever learn. Maybe you've learned some algebra, but will you use it?