Answers

2015-10-24T12:04:13+08:00
Element-ex aluminum

compound-ex.baking soda
0
2015-10-24T16:16:51+08:00

Matter can be classified according to its phase (soli, liquid and gas), or according to its chemical composition; under this are pure substances- with constant composition like elements and compounds. there is also mixture whose composition is variable, under this are homogenous mixture and heterogenous mixture
0