How many grams of iron (III) oxide are produced by the reaction of 44.8 dm3 of oxygen and iron? (hint: iron is XS) at 215 K and 2.00 atm? 4Fe + 3O2 → 2Fe2O3
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Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by