Balancing chemical equations
Atom conservation, then unknown coefficients, then solve the system.
Definition
配平的本质是让反应前后每种元素的原子个数相等。常用方法:观察法、(奇数配偶法)、化合价升降法、代数法(设未知系数解方程)。
Key formulas
- 守恒
Common mistakes
- 改了化学式本身(不能改下标)
- 忘记配平单质
- 离子方程式电荷不守恒
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