explain the following:-
1) Reactions of metallic oxide and non metallic oxide
2)pH scale
3) importance of pH in everyday life
4) sodium hydroxide
5) bleaching powder
6)baking soda
7) washing soda
8) plaster of Paris
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1. Acid+metallic oxide=Salt+H2O
Base+non metallic oxide=Salt+H2O
2. pH scale says the strength if the acid or base.
3. *Our body works within the pH range of 7.0 to 7.8
*Tooth decay starts when the pH of the mouth is lower than 5.5.
*When honeybee stinks, it leaves an acid. Use a mild base like baking soda on the stung area to give relief
Base+non metallic oxide=Salt+H2O
2. pH scale says the strength if the acid or base.
3. *Our body works within the pH range of 7.0 to 7.8
*Tooth decay starts when the pH of the mouth is lower than 5.5.
*When honeybee stinks, it leaves an acid. Use a mild base like baking soda on the stung area to give relief
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