大家好，又是我兼職芒果，今日繼續分享化學東西 1234 copyright protection168ＰＥＮＡＮＡ6n4ytXW230 尼

K, Na, Ca reacts with reacts with water 1234 copyright protection168ＰＥＮＡＮＡRMuiA5Kd1y 尼

their reaction and observation are as follows 1234 copyright protection168ＰＥＮＡＮＡVWNcs41hA0 尼

Potassium reacts with water to give potassium hydroxide and hydrogen gas 1234 copyright protection168ＰＥＮＡＮＡ5ojDG7PJSI 尼

observation:1234 copyright protection168ＰＥＮＡＮＡ1kFxdkfNNf 尼

hissing sound is heard 1234 copyright protection168ＰＥＮＡＮＡM28AZO292f 尼

colourless gas bubbles are evolved 1234 copyright protection168ＰＥＮＡＮＡAXyrUIbelH 尼

potassium dissolve in water to give a colourless solution 1234 copyright protection168ＰＥＮＡＮＡ9JkPldNwY6 尼

potassium burns with a lilac flame 1234 copyright protection168ＰＥＮＡＮＡq06h8pMtIz 尼

potassium melts into a silvery ball 1234 copyright protection168ＰＥＮＡＮＡi7RemLTnov 尼

Sodium 1234 copyright protection168ＰＥＮＡＮＡorvI78NAxd 尼

Sodium reacts with water to give sodium hydroxide and hydrogen gas 1234 copyright protection168ＰＥＮＡＮＡKixEHxdeAH 尼

observation:1234 copyright protection168ＰＥＮＡＮＡoCMmmfeE6J 尼

hissing sound is heard 1234 copyright protection168ＰＥＮＡＮＡI62mSqf9dr 尼

colourless gas bubbles are evolved 1234 copyright protection168ＰＥＮＡＮＡCR3KjzE4KP 尼

sodium dissolves in water give a colourless solution 1234 copyright protection168ＰＥＮＡＮＡI5qbfYtLyx 尼

sodium burns with a golden yellow flame 1234 copyright protection168ＰＥＮＡＮＡpuRRbI734v 尼

sodium melts into a silvery ball 1234 copyright protection168ＰＥＮＡＮＡ7kXJDRYJnr 尼

calcium 1234 copyright protection168ＰＥＮＡＮＡ502iPkNPuC 尼

calcium reacts with water to give calcium hydroxide and hydrogen gas 1234 copyright protection168ＰＥＮＡＮＡ7nODOlLPlP 尼

observation:1234 copyright protection168ＰＥＮＡＮＡ96A7vB1oAw 尼

colourless gas bubbles are evolved1234 copyright protection168ＰＥＮＡＮＡdfA0jxV5z9 尼

calcium dissolves to give a milky / cloudy solution 1234 copyright protection168ＰＥＮＡＮＡkaEKjOVldt 尼

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