Classification of Matter: Substances vs. Mixtures

What is matter defined as?

• Anything that is solid

• Anything that is liquid

• Anything that can be seen and touched

• Anything that has mass and takes up space

Which of the following is an element?

• Sugar (C6H12O6)

• Water (H2O)

• Oxygen (O2)

• Salt (NaCl)

What distinguishes a compound from an element?

• Compounds have the same properties as their elements

• Compounds can be broken down physically

• Compounds are made of two or more elements chemically combined

• Compounds can be found on the periodic table

Which of the following is a homogeneous mixture?

• Vinegar

• Salad

• Pizza

• Soil and water

What is the Tyndall effect used to distinguish?

• Physical changes from chemical changes

• Solutions from colloids and suspensions

• Homogeneous mixtures from heterogeneous mixtures

• Elements from compounds

Which method uses boiling points to separate mixtures?

• Filtration

• Distillation

• Centrifugation

• Decantation

Which of the following is an example of a colloid?

• Oil and vinegar

• Sand and water

• Milk

• Salt water

What is the main difference between a solution and a suspension?

• Suspensions are homogeneous

• Suspensions do not settle

• Solutions have larger particles

• Solutions do not settle

What does a chemical symbol with two capital letters indicate?

• A compound

• A mixture

• A phase

• An element

Tags

NGSS.MS-PS1-1

What does the subscript in a chemical formula represent?

• The number of molecules

• The number of atoms of each element

• The type of bond

• The phase of the substance