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Saturday, September 18, 2010

acid,bases,salts
Acid +metal:salt +hydrogen
Acid +carbonate:salt+carbon dioxide+water
Acid+base/alkali:salt +water
Acid is sour,hazardous and turn blue litmus turn red.base is oxides or a hydroxide.sodium hydroxide,aquaeous ammonia,and calcium hydroxide are alkalis..alkali are substance that have hydroxide ions oh-,in water.indicator is a substance with colours for the acidity,or alkaline solution.ph from 1 -6 is an acid.7 is neutral.more than 7 is a alkaline..alkali is slippery,hazardous,tur red litmus blue,react with acid in nuetralisation and react with ammonia compounds.

Still waiting @
8:10 PM


1:59PM

I'M 16,i'm Alicia Ng Sze Hwei 黄 诗 惠,CHONG BOON SEC :D

Waiting for you

1. Your wants
2. PHONE :D
3. Nichkhun
4. MONEY

Scream

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