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Ôn tập HKII KHTN8
Game Code: 2268000
Vietnamese
8
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KHTN8
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hongnguyet_94
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Trong các chất sau: NaCl, CaO, HCl, CO2, N2O, MgO, CuO có bao nhiêu oxide ?
5
10
Trong các oxide sau, CaO, SO2, FeO, CO, CO2, MgO, Na2O, có bao nhiêu oxide base?
4
15
Cho sơ đồ phản ứng sau: K2SO4 + ? 2KCl + BaSO4 Chất thích hợp để điền vào vị trí dấu hỏi (?) là
BaCl2
15
Chất nào sau đây thuộc loại muối? Ca(OH)2, Al2O3, H2SO4, MgCl2
MgCl2
15
Phân đạm cung cấp nguyên tố dinh dưỡng nào cho cây?
nguyên tố nitrogen (N)
15
Phân lân cung cấp nguyên tố dinh dưỡng nào cho cây?
Nguyên tố photphorus
15
Phân kali cung cấp nguyên tố dinh dưỡng nào cho cây?
Nguyên tố K
10
Hoàn thành phương trình CuSO4+Fe
Cu+FeSO4
15
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