问题描述:
一个简单的化学题(in english)
Which mass of oxygen combines with 12g of magnesium?
A 4g
B 8g
C 16g
D 32g
说明原因.
C
Which mass of oxygen combines with 12g of magnesium?
A 4g
B 8g
C 16g
D 32g
说明原因.
C
问题解答:
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