Question

求大神、学霸帮忙做几道题!!悬赏50!! 1. Give three examples o

求大神、学霸帮忙做几道题!!悬赏50!!
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

Answer 1

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

Answer 2

额