NCEA Chemistry Level 1 Chemical Reactions: Combination Observations and Equations

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Пікірлер: 7

  • @blake_1146
    @blake_1146 Жыл бұрын

    how are you supposed to know what the colour is of the product formed (Iron Sulfide) 8:58

  • @EMERALDCOBRA

    @EMERALDCOBRA

    Жыл бұрын

    I think you get like a sheet in the test that gives you all the colours of the solutions

  • @floydbotica3228

    @floydbotica3228

    Жыл бұрын

    you pretty much just have to know them. The best thing to do is watch a bunch of videos like this to get a solid grasp on it.

  • @asmc1492

    @asmc1492

    Жыл бұрын

    Resource sheet.

  • @blake_1146
    @blake_1146 Жыл бұрын

    5:38 how come the Mg isn't Mg2+

  • @EMERALDCOBRA

    @EMERALDCOBRA

    Жыл бұрын

    Because there also has to be two oxygen atom and instead of writing it Mg2O2 you can just have the two at the fron and have 2MgO

  • @blaeshun5414

    @blaeshun5414

    Жыл бұрын

    because its an atom not an ion