Science Source General Science

EN_90286236_0124

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caption

Potassium Reacting with Water. Potassium Burning in Water. Potassium (symbol K) is a highly reactive metallic element of group one of the periodic table. It reacts with water to produce soluble potassium hydroxide (KOH) and hydrogen gas (H2). The reaction produces enough heat to ignite the hydrogen, which burns with a pink flame due to the presence of the potassium. The equation for the reaction is: 2K + 2H2O --- 2KOH + H2 The heat of the reaction also melts the potassium metal, which forms a molten ball that floats on the water's surface.

headline Science Source General Science

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Charles D. Winters

original transmission reference bj4015

weight 0,83MB

size 20cm x 31cm by 300dpi

keywords - Show

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