Answer:
3.10g
Explanation:
Please see the attached picture for the full solution.
6.8x10^5? Scientific notation
<span>Use the sequence E (NaCl, Na2SO4, then Na2S). Silver is insoluble as a chloride, so it would be removed first, the others (Pb and Ni) are soluble as chlorides(Note; lead chloride is soluble as a hot solution but will ppt when cold), next, PbSO4 is insoluble but NiSO4 is soluble so use Na2SO4 to separate lead from nickel. Lastly, nickel sulfide is insoluble and can be separated and collected.
Hope I helped :)</span>
Answer:
C
Explanation:
an impure substance made through chemical process
Strong acids have a higher PH while weaker acids have a lower PH
I'm other words, acidic bases have a higher PH whilst less acidic bases have lower PH
