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Chromium iii sulfide2/28/2024 Sometimes there may be multiple compounds with that element on one side, so you'll need to use your best judgement and be prepared to go back and try the other options. Chromium(III) oxide reacts with hydrogen sulfide (HS) gas to form chromium(III) sulfide and water: CrO(s) + 3HS(g) CrS(s) + 3HO(l) To produce 421 g of CrS, how many (b) grams of CrO are required verified. Step 2: Multiply coefficients for compounds to balance out each elementįor each element that is not equal, try to balance it by adding more of it to the side with less. ![]() Step 1: Count the number of each element on the left and right hand sides Out-of-date nomenclature used the suffixes ic and ous to designate metals with higher and lower charges, respectively: Iron (III) chloride, FeCl 3, was previously called ferric chloride, and iron (II) chloride, FeCl 2, was known as ferrous chloride. When using the inspection method (also known as the trial-and-error method), this principle is used to balance one element at a time until both sides are equal and the chemical equation is balanced. Other examples are provided in Table 2.7.4 2.7. To be balanced, every element in Na2S + CrI3 = NaI + Cr2S3 must have the same number of atoms on each side of the equation. ![]() Figure 3 presents the thermogravigram of oxidation of sintered chromium (II) sulfide. The law of conservation of mass states that matter cannot be created or destroyed, which means there must be the same number atoms at the end of a chemical reaction as at the beginning. The only solid product at these temperatures is chromium (III) oxide.
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