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1.Give three examples o

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1.Give three examples o
1.Give three examples of a pure substance
2.Use the particle theory to explain why water changes from solid to a liquid when it is heated
3.Identify each of the following as a mechanical mixture or solution:
a) a pane of clear glass
b) chocolate chip ice cream
c) clear apple juice
d) a pizza
e) garbage in a garbage can
4.Lead is not often used in solder anymore.explain why not
1.给一个纯粹的种三例.使用粒子理论来解释为什么水从固体到液体时,heated3.确定下列各为一种机械的混合物或溶液:A)一块透明玻璃B)巧克力冰苹果清汁creamc))一pizzae)在一个垃圾can4垃圾.铅是不经常使用的焊锡了