Cho 27,6g hỗn hợp Al2O3 và Mg tác dụng vừa đủ với 900ml dung dịch H2SO4 1M loãng thu được dung dịch A. a) Tính thành phần % theo khối lượng của hỗn hợp ban đầu. b) Cho dung dịch A tác dụng với dung dịch NaOH 2M thu được kết tủa tối đa. Tính thể tích dung dịch NaOH đã dùng.
Answers: 1
Chemistry, 21.06.2019 22:30
1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →
Answers: 3
Chemistry, 23.06.2019 06:10
How can liquids be seperated by density a the liquids are absorbed onto a paper b the liquids are turned into seperate vapors c the liquids are collected as they evaporate d the liquids are allowed to seperate into layers
Answers: 1
Chemistry, 23.06.2019 07:20
Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory
Answers: 3
Cho 27,6g hỗn hợp Al2O3 và Mg tác dụng vừa đủ với 900ml dung dịch H2SO4 1M loãng thu được dung dịch...
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