Topic 7 Worksheet - Part 2: Double Replacement Reactions

Flashcards covering key concepts related to double replacement reactions, solubility rules, electrolytes, and ionic equations.

A __ reaction occurs when two solutions are mixed together and one of the products is a solid, called a precipitate.

Precipitation

The solubility rules state that compounds containing Li+, Na+, K+, and NH4+ are __.

generally soluble

The phrase 'like dissolves like' refers to molecules dissolving in molecules.

polar, polar

Water (H2O) is considered a __ molecule due to its bent shape and net dipole moment.

polar

A solution is made when you dissolve a (smaller amount) into a (larger amount).

solute, solvent

Compounds containing Cl-, Br-, and I- are soluble except when paired with __, __, or __.

Ag+, Hg2 2+, Pb2+

When __ pairs with Ca2+, Sr2+, or Ba2+, the resulting compound is slightly soluble.

OH-

A __ solution does not break up into ions in water.

nonelectrolyte

A __ is a substance that completely dissociates into ions in solution.

strong electrolyte

When __ pairs with Li+, Na+, K+, or NH4+, the resulting compounds are soluble.

CO3 2- and PO4 3-

The balanced molecular equation is represented as + → + for double replacement reactions.

Reactants, Products

The complete ionic equation lists all the species present, whereas the __ equation includes only the species that change during the reaction.

net ionic

The active ions in a complete ionic equation are called ions, while ions that do not participate in the reaction are called ions.

speciation, spectator

In predicting products for double replacement reactions, the cation and anion partners must be switched to form __ compounds.

neutral

A strong acid in solution is classified as a __ electrolyte because it fully dissociates into ions.

strong