A - Zn + 2HCl > ZnCl2 + H2
B - 2NH3 +H2SO4 > (NH4)2SO4
C - Na2CO3 + 2CH3COOH > 2CH3COONa + CO2 + H2O
D - CuO + 2HNO3 > Cu(NO3)2 + H2O
which equation does not represent a neutralisation reaction?
2020-06-22 8:27 pm
回答 (3)
2020-06-22 10:18 pm
Neutralization reaction is:
base + acid → salt + water
For option D:
CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O
(base) (acid) (salt) (water)
The answer: D - CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O
base + acid → salt + water
For option D:
CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O
(base) (acid) (salt) (water)
The answer: D - CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O
2020-06-23 12:02 am
The only of these that is not an acid-base neutralization reaction is:
A - Zn + 2HCl > ZnCl2 + H2
This is a redox reaction where Zn is being oxidized and H+ is being reduced.
In all three of the other cases, you have an acid and a base reacting with each other. While we often teach "acid + base gives salt + water", that is not always the case.
A - Zn + 2HCl > ZnCl2 + H2
This is a redox reaction where Zn is being oxidized and H+ is being reduced.
In all three of the other cases, you have an acid and a base reacting with each other. While we often teach "acid + base gives salt + water", that is not always the case.
2020-06-22 8:37 pm
I guess C. Because you have CO2, which can yield H2CO3 (carbonic acid) in water.
收錄日期: 2021-04-18 18:32:02
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