Answer:
The purpose of cryolite during electrolysis is that the mixture of cryolite and aluminium oxide has a lower melting point than pure aluminium oxide. Molten cryolite serves as a solvent for the molten aluminium oxide and increases the conductivity of the solution.
Number 3. c.
Number 4. a.
Number 5. d.
False
explanation
All of the elements with atomic numbers 1 to 92 can be found in nature, have stable or very long half-life isotopes, and are created as common products of the decay of uranium and thorium.
Answer:
Explanation:
From the question we are told that:
pKa for Acetic Acid 
Therefore
For Equal Concentration of acetic acid and acetatic ion
Generally the Henderson's equation for pH value is mathematically given by
Answer:
Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules)
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