we looked at some eqamples of when acids and bases neutralize each other
we talked about some supporting evidence that shows us when a chemical reaction has taken place:
- change in colour
- change in smell
- percipitate is formed
remember that changes in state do not always mean chemical reaction has occured, although it may seem like it ( think ice to water to water vapour)
we also saw a demonstration from mr. doktor about magnesium and how when it burns, it gives of a lot of radiant light and thats why its used in fireworks. this video clip uses a lot more magnesium than what we used in class but you get the idea :P
thats pretty much all we did today!
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