Classifying Matter

Choose all of the following that are physical properties.

• shape

• color

• combustibility

• density

• solubility

T/F melting point and boiling point are physical properties.

• True

• False

Which of the following is NOT a chemical property?

• oxidation

• density

• combustion

A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance. Which of the following can be inferred?

• A solid boiled when the acid was added.

• A gas was given off indicating a chemical change.

• A physical change produced a gas mixture.

• A reaction occurred that produced heat.

A scientist observed a number of different changes in matter. Which of the following observations provides evidence of a physical change?

• using heat to burn a log in a fireplace

• using light to produce sugar in plants

• a cake baked from many ingredients

• a bottle that was broken into many small pieces

Can a phase change (state of matter) produce new compounds? For example, would ice melting change the substance completely?

• No, this is an example of a physical change.

• No, this is an example of a chemical change.

• Yes, because atoms can bond together to form new substances.

Which type of matter has properties that are similar to its components or parts?

• atom

• element

• compound

• mixture

Which of the following is a compound?

• hydrogen (H)

• iron (Fe)

• water (H₂0)

• Neon (Ne)

If substances are combined in a way in which they can be separated by physical means, they are a

• compound.

• element

• atom

• mixture

The smallest part of a compound that still retains the characteristics of that compound

• atom

• molecule

• mixture

• solution