Physical Properties

Which of the following involves a change in the physical properties of original substance? 1) Sublimation of camphor 2) Clotting of blood 3) Formation of dew

1) Sublimation of camphor & 3) Formation of dew

What is matter?

Anything that has mass and takes up space

What is hydrogen gas?

Can be colorless, odorless, highly combustible diatomic gas. Hydrogen(the chemical element), Gas (the compound). A mixture of the element & compound.

Kim is given a sample of unknown liquid to test in the laboratory. She thinks that the liquid is water. Which of the following would be most helpful for Kim to test in order to determine whether or not the liquid is water? 1) mass of the liquid 2) volume of the liquid 3) boiling point of the liquid

3) boiling point of the liquid The liquid freezes at 32°C.

What is mass?

A measure of the amount of matter in an object (the weight)

What is a physical property?

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance.

Put in order of whats higher in density to lowest. Water, Honey, & Oil

Honey, water, then oil

Is flammability a physical property of matter?

No

What is density?

The degree of COMPACTNESS of a substance.

True or False? Some elements do have distinctive colors: sulfur and chlorine are yellow, copper is copper-colored, and elemental bromine is red?

True

True or False? For the elements, color does not vary much from one element to the next?

True Metal can be colorless, silver, or gray.

Is a water pipe freezes and cracks on a cold night an example of a physical change, but not a chemical change?

Yes

Chemical properties can be observed only when matter undergoes a __________________ change.

chemical

Density can be a very useful parameter for identifying an _____________.

element

Is titanium harder or softer than gold?

harder

Gold has a very _______ density, as does platinum.

high

Sodium (Na) metal reacts with water (H20) to give off ___________________ __________.

hydrogen gas

The ability to react chemically with other substances (is/isn't) a physical property of matter?

isn't

Color and shape both are examples of _______________ properties.

physical

True or False? Physical property of matter includes melting point, boiling point, color, density, magnetism, crystalline shapes, malleability, ductility, lustre, & refractive index the physical property of matter can be observed without any change in the matters chemical composition.

true

Salt is dull and brittle and conducts electricity when it has been dissolved into __________.

water (H20)