Properties of matter- Unit 2 Quiz

Which part of the illustration below shows the particles in a heterogeneous mixture

a

If a mixture is uniform in composition, it is said to be a. homogeneous b. chemically bonded c. heterogeneous d. a compound

a. homogeneous

Under ordinary condition of temperature and pressure, the particles in a gas are a. closely packed b. very far from one another c. held in fixed positions d. unevenly distributed

b. very far from one another

Which of the following is a clue of a chemical change? a. iron changes color when heated b. gas bubbles form in boiling water c. balls of wax form when melted wax is poured into ice water d. a gas forms when vinegar and baking soda are mixed

d. a gas forms when vinegar and baking soda are mixed

Which of the following is a physical change a. sawing a piece of wood in half b. burning a piece of wood c. rust forming on an iron fence d. a copper roof changing color from red to green

a. sawing a piece of wood in half

An atom is a. the smallest unit of matter that maintains its chemical identity b. the smallest unit of a compound c. always made of carbon d. smaller than an electron

a. the smallest unit of matter that maintains its chemical identity

A compound is a. a pure substance that cannot be broken down into simpler, stable substances b. a substance, made of two or more atoms that are chemically bonded, that can be broken down c. the smallest unit of matter that maintains its chemical identity d. any substance, whether it is chemically bonded or not

b. a substance, made of two or more atoms that are chemically bonded, that can be broken down

If a mixture is not uniform throughout, it is called a. homogeneous b. heterogeneous c. chemically bonded d. a solution

b. heterogeneous

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

b. light

A state of matter in which a material has no definite shape but has a definite volume a. gas b. liquid c. plasma d. solid

b. liquid

Which of the following is an example of a homogeneous mixture a. air b. orange juice c. raw milk d. marble

b. orange juice

The two most important properties of matter are a. the ability to carry and electric current well and to hold electric charge b. taking up space and having mass c. being brittle and hard d. being malleable and ductile

b. taking up space and having mass

A mixture is a. a combination of pure substances bonded chemically b. any substance with a uniform composition c. a blend of any two or more kinds of matter, as long as each maintains its own unique properties d. any group of elements that are chemically bonded to one another

c. a blend of any two or more kinds of matter, as long as each maintains its own unique properties

A homogeneous mixture is also called a. chemically bonded b. a compound c. a solution d. a solute

c. a solution

A solid substance is a. always frozen regardless of its container b. always a crystal regardless of its container c. always the same shape regardless of its container d. always losing particles regardless of its container

c. always the same shape regardless of its container

Which of the following is an example of a heterogeneous mixture a. a gold ring b. seawater c. granite d. sucrose

c. granite

Flammability is a material's ability to burn in the presence of a. hydrogen b. nitrogen c. oxygen d. carbon dioxide

c. oxygen

The only pure substance listed below is a. bread dough b. vinegar (5% acetic acid) c. vitamin C (ascorbic acid) d. seawater

c. vitamin C (ascorbic acid)

Which of the following is an extensive property of matter? a. melting point b. boiling point c. volume d. density

c. volume

Which of the following is NOT a clue that a chemical change has occurred a. change in color b. production of a gas c. formation of a precipitate d. change in shape

d. change in shape

When a physical change in a sample occurs, which of the following does NOT change a. shape b. temperature c. volume d. composition

d. composition

A physical change occurs when a a. peach spoils b. silver bowl tarnishes c. bracelet turns your wrist green d. glue gun melts a glue stick

d. glue gun melts a glue stick

The liquid state of matter can be described as a. having definite shape and definite volume b. having neither definite shape nor a definite volume c. having lost electrons owing to energy content d. having a definite volume but not a definite shape

d. having a definite volume but not a definite shape

Which of the following is a mixture a. carbon dioxide b. silicon c. silicon dioxide d. sand

d. sand

Filtration can be used to separate mixtures based on a. their boiling points b. their densities c. their melting points d. the size of their particles

d. the size of their particles