[8th Grade] Week 4 Quiz

A compound has to have 2 or more atoms

化合物必须有 2 个或更多原子, 正确或错误

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Which of these are correct chemical formulas?

哪些是正确的化学式？

Which of these is the smallest unit of an element

Explain why O₂ and O₃ are different compounds

解释为什么 O₂ 和 O₃ 是不同的化合物

Which method is best for separating a homogenous mixture of water and acetone?

哪种方法最适合分离水和丙酮的同质混合物？