Chemical Reactions

Aluminum and copper (II) chloride react to form copper and aluminum chloride. Which list correctly identifies the reactants and products of this reaction?

• Al, CuCI2, Cu, and AICI3 are all ionic solids

• Al and Cu are metals, CuCI2, and AICI3 are ionic solids

• AI and CuCl2 are ions, Cu and AICl3 are ionic solids

• Al and Cu are ions, CuCl2 and AlCl3 are metals

In aqueous solution, sodium chloride (NaCl) shows that it is made of sodium ions (Na+) and chloride ions (Cl-). Which statement explains the formation of ions when sodium chloride is formed from sodium and chlorine?

• The sodium atoms each lose an electron and the chlorine atoms each gain an electron.

• The sodium atoms each gain an electron and the chlorine atoms each lose an electron.

• Both the sodium atoms and the chlorine atoms gain one electron each.

• Both the sodium atoms and the chlorine atoms lose one electron each.

Chemical reaction in which two substances exchange parts with one another and form two different substances.

• Combination Reactions

• Double-Replacement Reaction

• Single-Replacement Reaction

• Oxidation-Reduction Reactions

Identify the type of reaction:

2 KClO₃ -----------> 2 KCl + 3 O₂

• Combustion

• Decomposition

• Double-displacement

• Single-displacement

• Synthesis

Which of these is a product?

• A

• B

• C

• D

The diagram shows the oxidation numbers of certain groups in the periodic table. According to the diagram, which group is LEAST likely to combine with other elements to form compounds?

• Group 1

• Group 14

• Group 17

• Group 18

Insoluble solids formed from such a reaction.

• Oxidation

• Sugar

• Precipitates

• Reduction

A coefficient in the formula is _________.

• F

• G

• H

• J

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

• Decomposition

• Synthesis

• Combustion

• Single Replacement

The right side of the equation below is called the

• products

• reactants