2023-24 Physical Science Chapter 2D "Changes in Matter"

physical property

• anything about a substance that can be observed or measured without altering the substance's chemical composition

• any change in the appearance of a substance where the composition of the substance is not altered

• changes in matter that alter the chemical composition of subtances

• how a substance changes in the presence of another substance or under certain conditions

• the degree to which a substance will react with other substances

physical change

• anything about a substance that can be observed or measured without altering the substance's chemical composition

• any change in the appearance of a substance where the composition of the substance is not altered

• changes in matter that alter the chemical composition of subtances

• how a substance changes in the presence of another substance or under certain conditions

• the degree to which a substance will react with other substances

chemical change

• anything about a substance that can be observed or measured without altering the substance's chemical composition

• any change in the appearance of a substance where the composition of the substance is not altered

• changes in matter that alter the chemical composition of subtances

• how a substance changes in the presence of another substance or under certain conditions

• the degree to which a substance will react with other substances

chemical property

• anything about a substance that can be observed or measured without altering the substance's chemical composition

• any change in the appearance of a substance where the composition of the substance is not altered

• changes in matter that alter the chemical composition of subtances

• how a substance changes in the presence of another substance or under certain conditions

• the degree to which a substance will react with other substances

reactivity

• anything about a substance that can be observed or measured without altering the substance's chemical composition

• any change in the appearance of a substance where the composition of the substance is not altered

• changes in matter that alter the chemical composition of subtances

• how a substance changes in the presence of another substance or under certain conditions

• the degree to which a substance will react with other substances

What are the TWO chemical properties which are emphasized in this chapter of the textbook?

• reactivity

• flammability (aka combustion reactions)

• radio active decay

• malleability

Ductility

• the ability of a solid material to be pulled into a wire

• the ability of some materials to be hammered or pressed into sheets

• the ease with which a material allows the transfer of either electrical or thermal energy

• the quality of how a material reflects light

malleability

• the ability of a solid material to be pulled into a wire

• the ability of some materials to be hammered or pressed into sheets

• the ease with which a material allows the transfer of either electrical or thermal energy

• the quality of how a material reflects light

conductivity

• the ability of a solid material to be pulled into a wire

• the ability of some materials to be hammered or pressed into sheets

• the ease with which a material allows the transfer of either electrical or thermal energy

• the quality of how a material reflects light

luster

• the ability of a solid material to be pulled into a wire

• the ability of some materials to be hammered or pressed into sheets

• the ease with which a material allows the transfer of either electrical or thermal energy

• the quality of how a material reflects light