chemistry

1 what's the Tyndall Effect and whats one example of this effect?

2) Given an unknown mixture consisting of two or more substances, how could we determine whether that mixture is a true solution, a colloid, or a suspension?
3) why is a suspension considered a heterogenous mixture?

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  1. Smoke is another colloid with the Tyndall effect.
    http://silver-lightning.com/tyndall/

    Here is something on suspensions.
    http://en.wikipedia.org/wiki/Suspension_(chemistry)

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