Science Source General Science

EN_90286235_0237

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caption

Sodium reacting with water. Flames during a chemical reaction caused by water being dripped onto sodium from a burette (at upper centre). Water molecules (H20) are made of hydrogen (H) and oxygen (O) atoms. The sodium (Na) metal is more reactive than hydrogen and replaces one of them in the water molecules to make sodium hydroxide or caustic soda (NaOH). Each hydrogen atom combines with another to form hydrogen gas (H2). The equation for this reaction is: 2Na + 2H20 ----- 2NaOH + H2. Sodium hydroxide is a strongly alkaline substance used to manufacture other chemicals, paper, rayon, aluminium, detergents, petrochemicals and textiles.

headline Science Source General Science

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Charles D. Winters

original transmission reference 2s2004

weight 0,87MB

size 19cm x 29cm by 300dpi

keywords - Show

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