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