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bilalimam124

what is a substance?

A SUBSTANCE IS A SINGLE KIND OF MATTER THAT IS PURE-MEANING IT ALWAYS HAS A SPECIFIC COMPOSITION AND SET OF PROPERTIES. AN EXAMPLE IS TABLE SALT-NO MATTER WHERE IT COMES FROM, IT HAS THE SAME...
00:54 Wed 08th Dec 20106 answers, last by rithak15 07:36 Thu 09th Dec 2010