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以这个作为内容写出过程 还有 实验现象

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以这个作为内容写出过程 还有 实验现象
Put a piece of chalk in water for 24 hours.What happens?why
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以这个作为内容写出过程 还有 实验现象
关于这个问题本人来回答,你的标题用英语看来你懂的一些.那本人就用英语解释给你听吧!Invests the chalk in the water 24 hours.What has?Invests the chalk in the water after 24 hours,the volunteer fire brigade dissolves that chalk,in dissolution before can partly have the air bubble,probably uses to do the lime block to place in the water the same truth.Afterwards the volunteer fire brigade changes the pollution,you put any color the chalk it to turn any type the color.