Elements, Compounds, and Mixtures-Sheet

What is a characteristic of elements as described in the passage?

• They are pure substances.

• They can be broken down chemically.

• They are not found on the Periodic Table.

• They are composed of two or more elements.

Which of the following is an example of a homogeneous mixture?

• Coffee

• Salad

• Water and oil

• Sand and iron filings

What distinguishes compounds from elements according to the passage?

• Compounds can be broken down chemically.

• Compounds are pure substances.

• Compounds are found on the Periodic Table.

• Compounds are represented by a 1 or 2 letter chemical symbol.

How are mixtures different from compounds based on the passage?

• Mixtures can be separated physically.

• Mixtures are pure substances.

• Mixtures undergo chemical changes when formed.

• Mixtures are represented by chemical formulas.

Which of the following is NOT a property of elements?

• They can be broken down chemically.

• They are pure substances.

• They are represented by a chemical symbol.

• They are found on the Periodic Table.

What is a key feature of homogeneous mixtures?

• They have a uniform composition.

• They can be separated chemically.

• They are composed of two or more elements.

• They are not pure substances.

According to the passage, what is true about compounds?

• They contain different properties than the elements that make them up.

• They are not able to be broken down chemically.

• They are composed of a single element.

• They are not represented by a chemical formula.