# 1Multiple Choice
칼슘이온과 탄산이온의 수용액을 섞으면 무슨색 앙금이 생기나요?
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1.검은색
2.노란색
3.흰색
4.빨간색



Freestyle

2218이익현

2218이익현

Freestyle

2218이익현

2218이익현
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