Which of the following correctly shows the relationship, in terms of number of particles, of the three substances? A. 1 mole of water < 1 mole of helium < 1 mole of aluminum

B. 1 mole of aluminum = 1 mole of helium = 1 mole of water

C. 1 mole of aluminum < 1 mole of helium < 1 mole of water

D. 1 mole of helium < 1 mole of aluminum < 1 mole of water

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

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)

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above