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Iodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution containing sodium iodide. 2 Nal(aq) + Cl₂(g) → 1₂ (s) + 2 NaCl(aq) How many grams of sodium iodide, Nal, must be used to produce 94.8 g of iodine, I₂? mass: g Nal
The combustion of propane may be described by the chemical equation C₂H, (g) + 5O₂(g) → 3 CO₂(g) + 4H₂O(g) How many grams of O₂(g) are needed to completely burn 17.5 g C₂H₂(g)? mass 0₂: g 0₂
Insert the missing coefficients to completely balance each chemical equation. equation 1: S + 6HNO3 equation 2: 3Cu + 8HNO3 · H₂SO4 + NO₂ + H₂O Cu(NO3)2+NO + H₂O