Science & Mathematics » Chemistry » Write equations to represent.........?

# Write equations to represent.........?

Write equations to represent the formation of the zincate ion, the aluminate ion and chromite ion when hydroxide solution is added to solutions of zinc nitrate, aluminum nitrate and chromium(3) nitrate.

Represent the Zn^2+(aq) ion as Zn(H20)6^2+, the Al(aq) ion as Al(H20)6^3+ and the Cr^3+(aq) ion as Cr(H2O)6^3+

• effective i had to verify this for my examination tomorow. besides a) y=mx+b (plumber A) y=25x+35 (plumber B) y=30x+25 b... (u could wanna get a peice of clean paper and write this down.)identity draw out a graph btw. y axis u could have (up and down axis) identity positioned... 10 (finished) ticks and a million tick is 30 x axis (left and precise axis) u can positioned 5 (finished) ticks and for a million tick is 5 then. u can positioned like something u desire interior the x axis and y axis then have a chart besides interior the chart positioned on the left 0 a million 2 3 4 then use the equation. plumber A could start up off as 0 35 so positioned 35 on the superb of 0 then nxt answer (a million) positioned beside it 60 and now u understand that the adaptation between 35 and 60 is 25 precise thats referred to as your fee of replace so only upload 25 to each and all of the different solutions then graph that on ur graph then plumber b start up off with 25 and shop going up via 30. then graph it while they intercept then beside the tip of any line positioned plumber A and positioned it beside the line u graphed for plumber A then positioned on the different line plumber B so then with that in spite of line is decrease then the factor of interception the place they meet. then meaning that plumber is extra decrease priced over the cost or w/e while they meet ik im not very sturdy detailing im very srry yet examine it heavily. wish i helped yea :P
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• Write equations to represent the formation of the zincate ion, the aluminate ion and chromite ion when hydroxide solution is added to solutions of zinc nitrate, aluminum nitrate and chromium(3) nitrate.

Represent the Zn^2+(aq) ion as Zn(H20)6^2+, the Al(aq) ion as Al(H20)6^3+ and the Cr^3+(aq) ion as Cr(H2O)6^3+

Zn(NO3)2 + 6 H2O → Zn(H2O)6^+2 + 2 NO3-1

Zn(H2O)6^+2 + 2 NO3-1 + 4NaOH → [Zn(H2O)2(OH)4]2- + 4 H2O + 2NO3^-2 + 4 Na+1

Al(NO3)3 + 6 H2O → Al(H2O)6^+3 + 3 NO3-1

Al(H2O)6^+3 + 3 NO3-1 + 4 NaOH → Al(H2O)2(OH)4^-1 + 3 NO3-1 + 4 Na^+1 + 2 H2O

Cr(NO3)3 + 6 H2O → Cr(H2O)6^+3 + 3 NO3-1

Cr(H2O)6^+3 + 3 NO3-1 + 4 NaOH → Cr H2O)2(OH)4^-1 + 3 NO3-1 + 4 Na^+1 + 2 H2O
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