在化学变化中，一种物质变成另一种完全不同的物质。
During a chemical change, one kind of matter changes into another completely different kind of matter.
化学变化是一种改变粒子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particles is changed and a new substance is formed.
化学变化是改变分子结构、化学变化是改变分子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particles is changed and a new substance is formed.
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