化学反应类型
Types of Chemical Reaction
识别并描述四种化学反应类型：燃烧（在氧气中燃烧）、氧化（获得氧）、热分解（受热分解）和置换（较活泼金属置换较不活泼金属）。
Identify and describe four types of chemical reaction: combustion (burning in oxygen), oxidation (gain of oxygen), thermal decomposition (breaking down by heat), and displacement (more reactive metal replaces less reactive one)
学习证据 / Evidence
- 为每种反应类型写出一个带例子的文字方程式
- 根据给定的文字方程式或描述识别反应类型
- 解释置换反应发生的原因（相对活泼性）
- 区分完全燃烧（CO₂和H₂O）与不完全燃烧（CO和烟尘）
- Writes a word equation for each type of reaction with an example
- Identifies the type of reaction from a given word equation or description
- Explains what makes a displacement reaction happen (relative reactivity)
- Distinguishes complete combustion (CO₂ and H₂O) from incomplete combustion (CO and soot)
评估问题 / Assessment
如果{{name}}看到铁生锈和蜡烛燃烧，他们能否解释每种情况下发生的化学反应类型，并为其中一种写出简单的文字方程式？
If {{name}} saw iron going rusty and a candle burning, could they explain what type of chemical reaction is happening in each case — and write a simple word equation for one of them?