问题描述:
写出下列化学符号代表的意义
Mg
_______;______;_______.
H2O2
_______;______;_______.
2H2+O2=2H2O
_______;______.
Mg
_______;______;_______.
H2O2
_______;______;_______.
2H2+O2=2H2O
_______;______.
问题解答:
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