Equation balance:
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
2Al(OH)3+3H2SO4
H=12
SO4=3
O=6
Al=2
Al2(SO4)3+6H2O
H=12
SO4=3
O=6
Al=2
Carbon electrodes are changed frequently in electrolysis as the carbon in the carbon electrodes burns to give out Carbon-di-oxide.
Carbon electrodes are used in electrolysis to facilitate the transfer of electrons between the anode and the cathode. The carbon electrode is usually in the form of a rod or plate and is electrically connected to the anode.
The carbon electrode may also be used to help reduce the overall resistance of the electrolytic cell.
Carbon electrodes are used in electrolysis because they are chemically inert and have a high electrical conductivity.
However, carbon electrodes must be changed frequently because they become corroded and lose their electrical conductivity over time.
This is because carbon burns out in the Carbon electrodes to give out Carbon-di-oxide. That is why the carbon anodes should be changed frequently.
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Answer:
b covalent . A covalent bond holds atoms that share valence electrons
Answer:
1
Explanation:
ionic is transfer of electrons from metal to non metal while covalent is sharing electrons between two non metals
You may find the dot diagram for kripton (Kr) in the attached picture.
Explanation:
Kripton (Kr) is a noble gas found in the 18th group of the periodic table. In the electron dot diagram we show the electrons in the last electronic shell. Kripton have 8 electrons in the last electronic shell.
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electron dot diagram
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