2. How many calories are needed to raise 50 g of iron from 55°C to 200°C? (c = 0.110 cal/g °C)

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.