THE EXTRACTION OF METALS FROM THEIR RESPECTIVE ORES IS KNOWN AS METALLURGY.
THE DIFFERENT PROCESS ARE :- ROASTING, CALCINATION, FROTH FLOTATION AND MGNETIC SEPARATION.
Answer:
2 K3(PO4) aq + 3NiBr2 aq -------- 6 KBr aq + Ni3(PO4)2 s
Explanation:
The components of a mixture maintain their original properties. True. That is because a mixture is not combined chemically.
Answer:
HNO₃.
Explanation:
- It is known that acids decrease the pH of the solution, while bases increase the pH of the solution.
So, HF and HNO₃ decrease the pH of the solution as they produce H⁺ in the solution.
<em>While, KOH and NH₃ increase the pH of the solution as they produce OH⁻ in the solution.</em>
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HNO₃ will decrease the pH of the solution greater than HF.
- Because HNO₃ is strong acid that decomposes completely to produce H⁺ more than the same concentration of HF that is a weak acid which does not decomposed completely to produce H⁺.
