A balloon is filled with oxygen gas with a volume of 8.70 mL and a temperature of 318.2 K. If the temperature increases to 337.8 K, what would the new volume be?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)

Who discovered a pattern to the elements in 1869?