Compounds Quiz

What happens when different atoms combine?

• They form compounds with very different properties.

• They form identical elements.

• They remain unchanged.

• They become gases.

Which element is a shiny metal?

• Sodium

• Chlorine

• Oxygen

• Carbon

Which element is a green gas?

• Chlorine

• Sodium

• Hydrogen

• Nitrogen

What is a compound?

• A substance made of two or more different elements

• A single type of atom

• A mixture of gases

• A type of metal

What does the term "molecule" refer to?

• A group of atoms bonded together

• A single atom

• A type of cell

• A type of rock

What is the chemical formula for water?

• H2O

• CO2

• O2

• NaCl

What is the chemical symbol for oxygen?

• O

• Ox

• Oy

• Om

What does the diagram represent: element or compound?

• Element

• Compound

• Mixture

• Solution

Which of the following is a compound?

• Sodium

• Chlorine

• Sodium chloride

• Oxygen

What are the two elements in copper oxide?

• Copper and chlorine

• Copper and oxygen

• Magnesium and chlorine

• Magnesium and oxygen