Elements, Compounds & Mixtures

Is CH₄ (Methane) an Element, Compound or Mixture?

• Element

• Compound

• Mixture

• None of the above

Is O₂ (Oxygen) an Element, Compound, or Mixture?

• Element

• Compound

• Mixture

• None of the above

Is Air an Element, Compound, or Mixture?

• Element

• Compound

• Mixture

• None of the above

What does the diagram show?

• A pure compound

• Mixture of element and compound

• A mixture of two elements

• A mixture of two compounds

What does the diagram show?

• A pure compound

• Mixture of element and compound

• A mixture of two elements

• A mixture of two compounds

What does the diagram show?

• A pure compound

• Mixture of element and compound

• A mixture of two elements

• A mixture of two compounds

Which of the following statements is true about compounds and mixtures?

• A compound is a pure substance made up of two or more elements, while a mixture is a combination of two or more substances that are not chemically combined.

• A mixture is a pure substance made up of two or more elements, while a compound is a combination of two or more substances that are not chemically combined.

• A compound is a combination of two or more substances that are not chemically combined, while a mixture is a pure substance made up of two or more elements

• A mixture and a compound are the same thing

A mixture of sand, salt, and water needs to be separated. How would you go about doing this?