Models of Matter A.4 The Mole (id: 7ef4694c8)

admin · 发表于 2024-2-6 07:28:10

本题目来源于试卷: Models of Matter A.4 The Mole，类别为 IB化学

[单选题]
What is the percentage by mass of S in the compound sulfur dioxide $SO_2$

A. 25%
B. 50%
C. 75%
D. 100%

参考答案: B

本题详细解析:
data/attachment/exam/2312/20/2312200615881898.jpg

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