Chemistry Semester Final Review

Many metal hydroxides decompose when heated to yield metal oxides and

• metal hydrides

• water

• carbon dioxide

• an acid

The reaction Cl₂(g)+2KBr(aq)==>2KCl(aq)+Br₂(l) is a

• synthesis reaction

• ionic reaction

• single-replacement reaction

• combustion reaction

When a metal chlorate is heated, it decomposes to yield a metal chloride and

• a metal oxide

• a metal hydroxide

• hydrogen

• oxygen

Oxides of active metals, such as CaO, react with water to produce

• metal carbonates

• metal hydrides

• acids

• metal hydroxides

Magnesium bromide + chlorine yield

• Mg and BrCl

• MgCl and Br₂

• MgBrCl

• Mg(Cl)₂ and Br₂

Standard pressure is exactly

• 1 atm

• 760 atm

• 101.325 atm

• 101 atm

Salt in water is an example of which solute-solvent combination?

• gas-liquid

• liquid-liquid

• solid-liquid

• liquid-solid

Which of the following will dissolve most rapidly?

• sugar cubes in cold water

• sugar cubes in hot water

• powdered sugar in cold water

• powdered sugar in hot water

When heated, a metal carbonate decomposes into a metal oxide and

• carbon

• carbon dioxide

• oxygen

• hydrogen

Which reactant controls the amount of product formed in a chemical reaction?

• excess reactant

• mole ratio

• composition reactant

• limiting reactant