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Thursday, April 8, 2010
acids~

hello!
this is what we have learnt many things for science.
acids are one of them.
lai, let me tell you more about them ^^

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these are labels that you usually see in science laboratories ;





















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acids ; properties

> tastes sour example. lemon and lime.
> turns blue litmus paper red
> reacts with some metals & give off hydrogen.
> when dilute sulfuric or hydrochloric acid is added to a test tube containing
pieces of magnesium, a lot of bubbles are given off.
this is called effervescene (bubbles). the bubbles produced contain
hydrogen gas. we can also test it by using a burning splint.
if it is inserted into the gas, the splint extinguishes with a ‘pop’ sound.

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important equations ;

Acid + Metal = Salt +Hydrogen

Acid + Carbonate = Salt + Water + Carbon Dioxide

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uses of acids ;

Hydrochloric Acid : remove rust on iron & steel

Sulfuric Acid : used in car batteries

Nitric Acid : manufacture fertilisers

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done by : [collaboration of information by] qihui & julia :D
edited by : syak :D

P.S. information about alkalines are in the next post. click it! :D

~ { 2:41 AM }
DOMO-KUN is <3