IMG_5950.jpeg

# Physical Properties and Chemical Reactions ## Matching Physical/Chemical Properties | Statement | Property | |---|---| | A dull surface cannot be used as a mirror. | Clarity | | Copper and aluminum are easily drawn out into wires. | Ductility | | A piece of glass is difficult to scratch | Hardne...

# Physical Properties and Chemical Reactions ## Matching Physical/Chemical Properties | Statement | Property | |---|---| | A dull surface cannot be used as a mirror. | Clarity | | Copper and aluminum are easily drawn out into wires. | Ductility | | A piece of glass is difficult to scratch | Hardness | | You cannot see light passing through milk | Clarity | | Magnesium is placed in acid and starts to bubble vigorously | Reactive | | Gold can be hammered into sheets as thin as tissue paper. | Malleability | | Magnesium metal is held over a Bunsen burner and catches on fire | Flammable | | Candle wax can be scented in different flavours | Odour | | Honey pours very slowly | Viscosity | | Bleach is spilled on your hand and it starts to burn | Corrosive | ## Element Properties Table | Element | # of Valence electrons | # of electrons gained or lost | Ion | |---|---|---|---| | Phosphorus | 5 | 3 | $P^{3-}$ | | Barium | 2 | 2 | $Ba^{2+}$ | ## Lewis Dot Diagram for Sulphur ```. S. ``` ## Reactivity of Group 1 Elements Group 1 elements are very reactive because they have one valence electron. This makes them eager to lose this electron and achieve a stable electron configuration. ## Identifying Water and Vinegar To distinguish between water and vinegar, consider the following physical properties: * **Odour:** Vinegar has a distinct odour, while water does not. * **Clarity:** Water is transparent, while vinegar may have a slightly cloudy appearance depending on impurities. * **Colour:** Water is colourless, while vinegar typically has a slightly yellowish tint. * **Viscosity:** Water has a lower viscosity compared to vinegar.