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Consider the reaction of iron (ll) sulßde with oxygen gas to form iron (II) oxid

ID: 1089727 • Letter: C

Question

Consider the reaction of iron (ll) sulßde with oxygen gas to form iron (II) oxide and Let's begin by balancing the equation Dan't sobee it xotl Rather, go th rough a predict, solve, assess oycle in order to practice becoming better at problem solving (1pt) PREDICT: Let's make some balancing predictions. Don't do any solving yet, just make a) What coefficient do you think should go in front of the Fes(s)? based on inspecting the equation given above WHY? b) What coefficient do you think should go in front of the SOalR)7 WHY? SOLVE: Now solve the problem by balancing the equation. ASSESS: Does your result make sense? How do you know?

Explanation / Answer

4FeS + 7O2 ==>>2Fe2O3 + 4SO2

Hence the coefficient of FeS is 4

Coefficient of O2 is 7

Both these values are calculated while balancing the chemical reaction keeping in mind the mole ratio