Which of the following can be achieved by using a visible-light spectrophotometer?
i. detecting the presence of isolated double bonds.
ii. finding the concentration of a kmno₄ solution.
iii. running a flame test to determine if na+ or k+ is in a solution.
(a ) iii only
(b ) ii only
(c) i only
(d) ii and iii
(e ) i and ii

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate