Models of Matter A.4 The Mole (id: 4a147f223)

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

[单选题]
The elemental composition of :3nbvw-bs gk8compound8sax v 5mg;fljsi0zj24 3rz 7x B is given in the table.

enskipElement	Percentage abundance by mass /%
C	75
H	25

What is the empirical formula of compound B?
Atomic masses (amu) C=12,H=1

A. $C_3H$
B. CH
C. $C_3H_2$
D. $CH_4$


参考答案:  D


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