8. Which of the following substances contain calcium carbonate as the main chemical constituent?
(1) limestone
(2) chalk
(3) marble
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3) only
chemistry (rock) --- urgent
2008-05-26 12:35 am
回答 (2)
2008-05-26 12:39 am
✔ 最佳答案
D. (1), (2) and (3) only
2008-05-26 8:50 am
D 1, 2, and 3 only
收錄日期: 2021-04-13 16:24:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080525000051KK01963