You should have given us a table, but I think my table shouldn't be too different.
Let's put oxidation numbers first.
You would have to know that Mg(s) is a reducing agent and Br2(l) is an oxidizing agent. But it is pretty common knowledge that the halogens will tend to take the electrons and alkali and alkaline earth metals will tend to give up electrons.
Mg is oxidized because it gives up electrons; Br2(l) is reduced because it gains electrons. Since the reaction conforms to what we would expect to <em>naturally</em> (thermodynamically favored) occur, it can take place given that the activation energy is supplied.
Answer:
First iron fillings are separated by using a magnet. magnet attracts iron fillings, thus iron fillings get separated. then dissolve aluminium powder and sugar in water as aluminium is insoluble in water it will become a filtrate.
Explanation:
Answer:
it gains 2 electrons
Explanation:
atoms want to be more stable, for oxygen it's number is 8, 2 less than the stable ring of 10. and hydrogen has a single electron, 1 less than the stable ring of 2. so oxygen takes 2 electrons 2 make it stable and hydrogen becomes attatched to the oxygen atom to form a covalent bond
Answer:
Option c.
Explanation:
This is the equation:
HF + H₂O ⇄ H₃O⁺ + F⁻ Ka: 3.5×10⁻⁴
So the HF is the weak acid which donates the proton to water, so the water becomes a base cause accepted it.
The hydronium will release the proton, then. It is the conjugate acid, from water and the F⁻ which would accept a proton to form the HF, it is the conjugate strong base.
In conclussion, HF is an acid, and F– is its conjugate base
