Equation Result #1
2Ag | + | H2SO4 | → | H2 | + | Ag2SO4 | |||
silver | sulfuric acid | hydrogen | silver sulfate | ||||||
(rắn) | (dung dịch loãng) | (khí) | (kết tủa) | ||||||
(trắng bạc) | (không màu) | (không màu) | (trắng) | ||||||
2 | 1 | 1 | 1 | Hệ số | |||||
Nguyên - Phân tử khối (g/mol) | |||||||||
Số mol | |||||||||
Khối lượng (g) |
Other Condition: at high temperature
Explanation: The ideal environmental conditions for a reaction, such as temperature, pressure, catalysts, and solvent. Catalysts are substances that speed up the pace (velocity) of a chemical reaction without being consumed or becoming part of the end product. Catalysts have no effect on equilibrium situations.
Place the Ag sample in a test-tube containing the dilute H2SO4 solution, and shake gently.
The reducing potential of silver is higher than hydrogen (in other words, Ag is behind H2 in the metal reactivity series), so Ag does not react with a dilute H2SO4 solution.
Equation Result #2
2Au | + | 3H2SO4 | → | + | 3H2 | ||||
gold | sulfuric acid | hydrogen | |||||||
(rắn) | (dung dịch loãng) | (dung dịch) | (khí) | ||||||
(vàng) | (không màu) | (không màu) | (không màu) | ||||||
2 | 3 | 1 | 3 | Hệ số | |||||
Nguyên - Phân tử khối (g/mol) | |||||||||
Số mol | |||||||||
Khối lượng (g) |
Other Condition: at high temperature
Explanation: The ideal environmental conditions for a reaction, such as temperature, pressure, catalysts, and solvent. Catalysts are substances that speed up the pace (velocity) of a chemical reaction without being consumed or becoming part of the end product. Catalysts have no effect on equilibrium situations.
Place the Au sample in a test-tube containing the dilute H2SO4 solution, and shake gently.
The reducing potential of gold is higher than hydrogen (in other words, Au is behind H2 in the metal reactivity series), so Au does not react with a dilute H2SO4 solution.
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