Which statement about subatomic particles is not true?
a. protons and neutrons have almost the same mass.
b. protons and electrons have opposite charges.
c. unlike protons and electrons, neutrons have no charge.
d. protons and neutrons have the same charge.

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)

Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)

What are the coefficients to balance the following equation? ba+br2=babr2