Test 1.2: Matter and change

A mixture is

A blend of any 2 or more kinds of matter, as long as each maintains its own unique properties

It is easy to determine whether a substance is a metal if the substance is

A good electrical and heat conductor

A compound is

A substance, made of 2 or more atoms that are chemically bonded, that can be broken down into simpler, stable substances

Which of the following is an example of a homogeneous mixture? A. air B. orange juice C. raw milk D. marble

Air

A solid substance is

Always the same shape regardless of its container

A nonmetal is usually a. brittle b. malleable c. a good conductor d. used to make jewelry

Brittle

Which of the following is not a physical change A. grinding B. cutting C. boiling D. burning

Burning

Which of the following is an intensive property of matter? A. amount of energy B. density C. volume D. sucrose

Density

A physical change occurs when a

Glue gun melts a glue stick

Which of the following is an example of a heterogenous mixture A. a gold ring B. seawater C. granite D. sucrose

Granite

The vertical columns on the periodic table are called

Groups

The liquid state of matter can be described as

Having a definite volume but not a definite shape

If a mixture is not uniform throughout, it is called

Heterogeneous

If a mixture is uniform in composition, it is said to be

Homogeneous

What happens to the energy in a substance when it changes state?

It changes form, but is neither destroyed nor increased

Know what a homogeneous mixture is. (The question is "which part of the illustration below shows the particles in a homogeneous mixture?")

It's the one with the circles and squares evenly blended

Matter includes all of the following except a. air b. light c. smoke d. water vapor

Light

A state of matter in which a material has no definite shape but a definite volume is the ___ state

Liquid

Which of the following is not a chemical change? A. rusting B. igniting C. melting D. burning

Melting

All known chemical elements are organized into groups based on similar chemical properties in the

Periodic table

The horizontal rows on the periodic table are called

Periods

Nitrogen monoxide and oxygen, both colorless gases, form a red brown gas when mixed. Nitrogen monoxide and oxygen are called the

Reactants

Metalloids are often

Semiconductors

The two most important properties of all matter are

Taking up space and having mass

A student recorded the following while completing an experiment: Color of substance: yellow, shiny powder Effect of magnet: shiny powder was attracted The student should classify the substance as a

mixture

A chemical change occurs when

A leaf changes color in the fall

A homogeneous mixture is also called

A solution

A measure of the quanitiy of matter is

Mass

An atom is

The smallest unit of matter that maintains its chemical identity

Noble gases are in group 18, and are best known because they are

Unreactive

Under ordinary conditions of temperature and pressure, the particles in a gas are

Very far from one another

The only pure substance listed below is A. bread dough B. vinegar (5% acetic acid) C. vitamin C (ascorbic acid) D. seawater

Vitamin c

Which of the following is an extensive property of matter? A. melting point B. boiling point C. volume D. density

Volume