Consider these equations: 2S (s) + 3O2 (g)→2SO3 (g), ΔH = −792
kJ 2S (s) + 2O2 (g)→2SO2 (g), ΔH =?
2SO2 (g) + O2 (g)→2SO3 (g), ΔH = −198 kJ
What is the missing ΔH?
−594 kJ
−198 kJ
+198 kJ
+792 kJ

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

What is the subscript for oxygen in its molecular formula

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.