Elements, Compounds, and Mixtures

What is an element?

• A pure substance made up of two or more elements chemically combined

• A pure substance that cannot be broken down into simpler substances

• A mixture of two or more substances that are not chemically combined

• A particle of a compound

What is a compound?

• A pure substance made up of two or more elements chemically combined

• A pure substance that cannot be broken down into simpler substances

• A mixture of two or more substances that are not chemically combined

• A particle of an element

What is the ratio of hydrogen to oxygen in water?

• 1:1

• 2:1

• 1:2

• 3:1

What is a heterogeneous mixture?

• A mixture in which the composition is uniform throughout

• A mixture in which you can visually see the different parts

• A pure substance that cannot be broken down into simpler substances

• A particle of a compound

What is a homogeneous mixture?

• A mixture in which the composition is uniform throughout

• A mixture in which you can visually see the different parts

• A pure substance that cannot be broken down into simpler substances

• A particle of an element

What is an example of a homogeneous mixture?

• Sand

• Salt Water

• Salad

• Granola