Chemical Reactions and Conservation of Mass
- Created by: adelesimpson
- Created on: 08-05-16 10:26
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- Chemical Reactions and Conservation of Mass
- When elements react, their atoms join with others to form compounds
- Involves giving, taking or sharing electrons
- Ionic Bonding
- Between Metals and Non-metals
- Metal atoms lose electrons - become positively charged
- Non-metal atoms gain electrons - become negatively charged
- Oppositely charged ions are then strongly attracted to each other
- Held together by ionic bonds
- Covalent Bonding
- Between Non-metals - consist of molecules
- Share electrons
- Held together by covalent bonds
- Conservation of Mass
- Total mass of products = total mass of reactants
- In a sealed container there is no change in the total mass of the container and its contents
- When elements react, their atoms join with others to form compounds
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