A substance that cannot be A substance that cannot be broken down into simpler broken down into simpler

substances is substances is

An elementAn element

The science of matter and The science of matter and how it changeshow it changes

ChemistryChemistry

The smallest unit of a The smallest unit of a substance that behaves like substance that behaves like

the substance is the substance is

An atomAn atom

Which of the following is a Which of the following is a gas-liquid mixture?gas-liquid mixture?

The air we breatheThe air we breatheA carbonated drinkA carbonated drink

SoapsudsSoapsudsIce cubesIce cubes

Carbonated DrinkCarbonated Drink

A material that can be A material that can be represented by a chemical represented by a chemical

formula is aformula is a

Pure substancePure substance

You put 1 gram of salt into 1 You put 1 gram of salt into 1 liter of water and stir. The liter of water and stir. The

resulting liquid is an example resulting liquid is an example ofof

A pure substanceA pure substanceHeterogeneous mixtureHeterogeneous mixtureA homogeneous mixtureA homogeneous mixtureAn immiscible mixtureAn immiscible mixture

A homogeneous mixtureA homogeneous mixture

Smoke is an example of aSmoke is an example of aSubstanceSubstance

SolutionSolutionColloidColloid

SuspensionSuspension

ColloidColloid

Another name for a liquid Another name for a liquid homogeneous mixturehomogeneous mixture

SuspensionSuspensionSubstanceSubstance

SolutionSolutionLiquidLiquid

SolutionSolution

Matter is defined as anything Matter is defined as anything that that

Has mass and takes up spaceHas mass and takes up space

A heterogeneous mixture A heterogeneous mixture containing a liquid in which containing a liquid in which

visible particles settle is visible particles settle is called a?called a?

SuspensionSuspension

A mixture that contains two or A mixture that contains two or more substances blended more substances blended

evenly throughout is called a ?evenly throughout is called a ?

Homogeneous MixtureHomogeneous Mixture

A substance in which all atoms A substance in which all atoms are alike is called?are alike is called?

An elementAn element

The scattering of light by The scattering of light by colloidal particles is called the?colloidal particles is called the?

Tyndall EffectTyndall Effect

WaterWater

element element compoundcompound

mixturemixture

compoundcompound

SulfurSulfur

element element compoundcompound

mixturemixture

elementelement

PepperPepper

element element compoundcompound

mixturemixture

MixtureMixture

VinegarVinegar

homogeneoushomogeneousheterogeneousheterogeneous

homogeneoushomogeneous

Italian Salad DressingItalian Salad Dressing

homogeneoushomogeneousheterogeneousheterogeneous

heterogeneousheterogeneous

TeaTea

suspensionsuspensioncolloidcolloid

solutionsolution

solutionsolution

Orange juice with pulpOrange juice with pulp

suspensionsuspensioncolloidcolloid

solutionsolution

suspensionsuspension

FogFog

suspensionsuspensioncolloidcolloid

solutionsolution

colloidcolloid

A molecule of water (H2O) is made from _____ combining two hydrogen atoms and one oxygen atom.a. physicallyb. ionicallyc. thermallyd. chemically

chemically

The chemical formula for water, H2O, means that each water molecule contains

a.two hydrogen atoms and two oxygen atoms.b.two hydrogen atoms and one oxygen atom.c.two hydrogen atoms and zero oxygen atoms.d.one hydrogen atom and two oxygen atoms.

two hydrogen atoms and one oxygen atom.

Which of the following is not a pure substance?a. elementb. moleculec. compoundd. mixture

mixture

Which of the following is an element?a. saltb. ironc. nylond. sand

iron

The different substances in a mixturea. keep their properties.b. combine chemically.c. form new molecules.d. cannot be separated.

keep their properties.

A heterogeneous mixture with particles that NEVER settle?a. solutionb. suspensionc. colloidd. compound

colloid

Which tool is best for separating a mixture of sand and water?a. tweezersb. magnetc. centrifuge d. filter

filter

Any material made of two or more substances that can be physically separated?a. elementb. mixturec. compound d. molecule

mixture

Unlike a mixture, a pure substance hasa. atomsb. moleculesc. a specific size.d. a fixed composition.

a fixed composition.

The resistance of a fluid to flow is referred to asa. pressure.b. energy.c. viscosity. d. shape.

viscosity.

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

light

A(n) _________________ is NOT homogeneous.a. suspensionb. elementc. compound d. solution

suspension