Write a balanced equation: K2S2O3 + I2 -------> K2S4O6 + KI

A 20.0 mL sample of whiskey was diluted to 500.0 mL. A 2.00 mL aliquot of the diluted sample was removed and the ethanol, C₂H₂OH, was distilled into 50.00 mL of 0.02100 M K₂Cr₂O, and oxidized to acetic acid. 3 C₂H₂OH+2Cr₂O +16 H4 Cr³+ + 3 CH₂COOH + 11 H₂O The excess Cr₂O² was then back titrated with 13.4 mL of 0.1395 M Fe²+, producing Cr³+ and Fe³+, Calculate the weight per volume percent (% w/v) of ethanol in the original whiskey sample. ethanol: % w/v

How many grams of I2 is produced if you start with 67.9g of CuCl2? 2CuCl2 + 4KI -> 2CuI + 4KCl + I2

Balance the following equations. Show all coefficients including "1". (a) Mn₂O3+ (b) Cu + (c) (d) Fe₂O3+ (e) (f) HNO3+ (8) (h) N₂+ MnO₂+ Cu₂O+ CO C3H5(NO3)3 → H₂O+ CO₂ FeS+ NO₂+ Cu(NO3)2 →>> SO₂ NO₂+ Fe + NO HCN + CO₂+ N₂+ 0₂ CO-> C4 0₂+ H₂O → S→ 0₂ → H₂O CO₂+ CuO+ 0₂ Fe₂S3