Physical vs. Chemical

Front

What is a physical property?

Back

A property that can be seen or measured without changing a substance into something else.

Front

What is a chemical property?

Back

A property that tells how the substance can form new substances when it reacts with something else.

Front

What happens during a physical change?

Back

A physical change happens when the form and appearance changes but it is still the same substance.

Front

What happens during a chemical change?

Back

A chemical change happens when a substance becomes a new substance with new properties.

Front

List some common physical properties.

Back

Color, shape, texture, luster, mass, weight, volume, density, state (phase) of matter, magnetism, conductor of heat or electricity, malleability, ductility, solubility.

Front

List 3 common chemical properties.

Back

Flammability, reactivity, and the ability of a substance to rust.

Front

Is burning a piece of looseleaf a physical or chemical change?

Back

Burning is a chemical change because new substances are made and it cannot be changed back.

Front

What are the phase changes for H2O?

Back

Melting: H2O (s) --> H2O (l)

Freezing: H2O (l) --> H2O (s)

Boiling: H2O (l) --> H2O (g)

Condensation: H2O (g) --> H2O (l).

All are physical changes.

Front

What do you know about malleability, ductility, and solubility?

Back

Malleability is the ability to hammer a substance into thin sheets.

Ductility is the ability to pull or stretch a substance into a thin wire.

Solubility is the ability of a substance to dissolve.

All 3 are physical properties.

Front

What is a chemical change?

Back

Two or more substances interact to produce 1 or more new substances.