化學
【化學】 ppt 沉澱物表 20分
ppt 沉澱物表,最精簡易明易記,記熟可以入考場,未記熟唔好入考場。每年最少出20分
Anion | ✓ | ✘ | |
NO3- | All | ||
HCO3- | |||
OH- | Ba2+ | Group I NH4+ | |
O2- | |||
CO32- | |||
SO42- | Pb2+, Ca2+, Ba2+ | ||
X- (halogen) | Ag+, Pb2+ |
小練習
判斷以下哪個物質是可溶於水 (答案在最下)
Which of the following substances are soluble in water?
1. CaCl2 PbSO4
2. MgCO3 K2O
3. (NH4)2CO3 BaO
4. ZnO Fe(NO3)3
5. KHCO3 CuSO4
答案 answer
1. CaCl2 ✓ PbSO4
2. MgCO3 K2O ✓
3. (NH4)2CO3 ✓ BaO
4. ZnO Fe(NO3)3 ✓
5. KHCO3 ✓ CuSO4 ✓
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2 Comments
Is BaO soluble or not? thanks
ReplyDeletesoluble
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