well yah .... homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions.
while on the other hand ...A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.
there are many differences between these two .... but fr a basic info .... i guess what i said would help .....
Answer:
the iron alone was dark brown and rectangular, whereas the iron-sulfur combination was a dark gray powder.
Answer:
NH₄⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq) + NH₃(aq)
The solution is acid.
Explanation:
Ammonium bromide → NH₄Br
This is a salt that can dissociates like this:
NH₄Br(aq) → NH₄⁺(aq) + Br⁻(aq)
NH₄⁺ cation comes from a weak base, the ammonia. So the cation is the conjugate strong acid.
Br⁻ anion comes from a strong acid (HBr), so the anion is the conjugate weak base and in water, it does not make hydrolisis. It does not react.
So the NH₄⁺ is the one that can react to water, realeasing one proton as this equation shows:
NH₄⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq) + NH₃(aq)
As we give hyrdronium in the medium, the solution is acid.
