7.1 - 2 Physical and Chemical Properties

Matter

• Large quantities

• Has mass and takes up space and occurs as elements, compounds, and mixtures

• Characteristics that can only be observed or measured when atoms of matter rearrange during a chemical change

• A single substance, either an element or a compound, with definite composition and properties

Chemical reaction

• Has mass and takes up space and occurs as elements, compounds, and mixtures

• Characteristics that can be observed or measured without changing the substance, such as color, melting point, or conductivity

• Large quantities

• The process by which one or more substances change to produce one or more different substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following are pure substances?

• Mixtures and compounds

• Solutions and compounds

• Elements and mixtures

• Elements and compounds

Pure substance

• Characteristics that can be observed or measured without changing the substance, such as color, melting point, or conductivity

• Has mass and takes up space and occurs as elements, compounds, and mixtures

• A single substance, either an element or a compound, with definite composition and properties

• Large quantities

Oil and water separating into layers is an example of –

• The physical property of volume

• The chemical property of volume

• The physical property of density

• The chemical property of density

Which of the following is NOT a chemical property?

• Solubility

• Reactivity

• The ability to rust

• Flammability

Which of the following is a chemical property?

• State of matter

• Color

• Density

• Flammability

Which of the following shows evidence of a chemical reaction?

• Water turns red when mixed with Kool-Aid.

• An iron nail turns red in the presence of oxygen.

• An ice cube turns to a liquid in the presence of heat.

• Paper changes its shape when cut.

Tags

NGSS.MS-PS1-2

Chemical properties

• Characteristics that can be observed or measured without changing the substance, such as color, melting point, or conductivity

• Has mass and takes up space and occurs as elements, compounds, and mixtures

• Characteristics that can only be observed or measured when atoms of matter rearrange during a chemical change

• Large quantities

Tags

NGSS.MS-PS1-2

Large quantities

• Pure substance

• Bulk quantities

• Physical properties

• Chemical reaction