Balance the following equation. Enter just the number (no sp…

Balance the following equation. Enter just the number (no spaces or any other characters.). If the coefficient is 1 (one) enter the number 1 otherwise Canvas will mark it unanswered and you will lose the points. [a] HClO4   + [b]  P4O10 (g)  →  [c] H3PO4(g)  +  [d] Cl2O7

A coffee-cup calorimeter contains 100.0 mL of 1.000 M HCl (e…

A coffee-cup calorimeter contains 100.0 mL of 1.000 M HCl (excess) at 20.3 °C. When 1.82 g Zn(s) is added, the temperature rises to 30.5 °C. What is the heat of reaction per mol Zn? Assume that the heat of solution is that of water, and the density of the HCl is 1.000 g/mL.  Zn(s)  + 2 HCl(aq)  → ZnCl2(aq)  + H2(g)   

Balance the following equation. Enter just the number (no sp…

Balance the following equation. Enter just the number (no spaces or any other characters.). If the coefficient is 1 (one) enter the number 1 otherwise Canvas will mark it unanswered and you will lose the points. [a] B2O3(s) (aq)   + [b]  HF(aq)  →  [c] BF3(aq)  +  [d] H2O(l)

Balance the following equation. Enter just the number (no sp…

Balance the following equation. Enter just the number (no spaces or any other characters.). If the coefficient is 1 (one) enter the number 1 otherwise Canvas will mark it unanswered and you will lose the points. [a] C7H9   + [b]  HNO3  →  [c] C7H6(NO2 ) 3  +  [d] H2O(g)

When 4.00 g of iron (MM = 55.845 g/mol) is reacted with 4.00…

When 4.00 g of iron (MM = 55.845 g/mol) is reacted with 4.00 g of water (MM = 18.02 g/mol) according to the chemical equation shown below: What is the limiting reactant? What mass of Fe3O4(s) (MM = 231.53 g/mol) is produced? How many grams of the excess reactant are left? If 4.75 g of Fe3O4(s) were obtained, what is the percent yield? Must show your work on scratch paper to receive credit. 3 Fe(s) + 4 H2O(l) → Fe3O4(s) + 4 H2(g)