1. Molten iron and carbon monoxide are produced in a blast furnace by the re-
action of iron(III) oxide and coke (carbon). If 25.0 kg of pure Fe2O3 are used,
how many moles of iron can be produced?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.