matter 1 and 2 quiz:

elements, compounds, and mixtures worksheet: true or false? a mixture is always made up of elements.

-FALSE

elements, compounds, and mixtures worksheet: true or false? an element can be broken down into simpler substances.

-FALSE

elements, compounds, and mixtures worksheet: in a mixture can the substances involved sometimes be separated by a simple physical process?

-YES

elements, compounds, and mixtures worksheet: a mixture is not?

-a chemical combining of substances

homogenous mixture solution type: gas-gas:

-air

matter:

-anything that has mass and volume

molecule:

-are the smallest particles of a compound that still maintain the properties of that compound. (same propeties)

physical separation: evaporation:

-boiling liquid, solid will remain after (particles of solid will be left)

homogenous mixture solution type: solid-solid:

-brass metal (zinc and copper)

homogenous mixture solution type: gas-liquid:

-carbon dioxide in soft drinks

compounds can only be separated into its elements by ________, not physical.

-chemical means

compound or a mixture? components are chemically combined:

-compound

compound or a mixture? components can be separated by chemical means:

-compound

compound or a mixture? composed of elements:

-compound

compound or a mixture? has a fixed proportion of elements by mass:

-compound

compound or a mixture? properties are different from those of component elements:

-compound

compound or molecule? ammonia: NH5

-compound

compound or molecule? methane: CH4

-compound

compound or molecule? water: H2O

-compound

element, compound, or mixture? carbon dioxide:

-compound

element, compound, or mixture? sodium chloride:

-compound

element, compound, or mixture? water:

-compound

when elements come together to form compounds, the structure of the compound is either a ______________________ or a _______________________.

-crystal -molecule

homogenous mixture:

-different substances are evenly distributed (uniform in composition)

heterogenous mixture:

-different substances are not evenly distributed throughout the mixture.

element, compound, or mixture? nitrogen:

-element

element, compound, or mixture? oxygen:

-element

separating mixtures:

-examples: *filtration, evaporation, distillation, chromatography, separating funnel*

true or false: are the words molecule and compounds synonyms?

-false

the elements that make up a compound are always found in a?

-fixed ratio

physical separation: seperating funnel:

-funnel separates large objects from small objects (liquids from solids) (large solids from small solids)

homogenous mixture solution type: liquid-liquid:

-gasoline

protons:

-give the element its identity. ___________________ cannot be added or taken away from an atom.

physical separation: distillation:

-heating and cooling

electrons:

-how many and where they are located around the nucleus, give an element its properties (flammable/bond with other atoms)

what is an example of a homogenous mixture?

-lemonade

homogenous mixture solution type: solid-liquid:

-maple tree sap

compound or a mixture? components are not chemically combined:

-mixture

compound or a mixture? components can be separated by physical means:

-mixture

compound or a mixture? composed either of elements or compounds or both:

-mixture

compound or a mixture? has variable proportions of elements and compounds:

-mixture

compound or a mixture? properties of each of the components remain the same:

-mixture

element, compound, or mixture? air:

-mixture

element, compound, or mixture? diet coke:

-mixture

element, compound, or mixture? italian salad dressing:

-mixture

element, compound, or mixture? lipstick:

-mixture

element, compound, or mixture? milk:

-mixture

element, compound, or mixture? peanut butter:

-mixture

element, compound, or mixture? tea:

-mixture

element, compound, or mixture? veggie soup:

-mixture

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? air?

-mixture

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? gasoline?

-mixture

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? rubbing alcohol?

-mixture

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? salt water?

-mixture

compound or molecule? fluorine: F2

-molecule

compound or molecule? oxygen: O2

-molecule

compounds are always ___________, but _____________________ are not always compounds

-molecules

elements, compounds, and mixtures worksheet: in a compound the __________________________ are ______________ combined so that the elements that make up the compound ________ their identities and _____ take on a new set of properties.

-molecules -chemically -lose -do

properties of homogenous mixtures:

-particles are not visible to the naked eye or even by use of a microscope. -does not scatter a light beam -the substances in a solution can not be separated by mechanical filtration.

it is possible to __________________ separate a mixture back to its individual components

-physically

properties of heterogeneous mixtures:

-possible to physically seperate a heterogenous mixture back to its individual components -see different phases-not even mixed together. (soup) -light beam can be seen

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? gold?

-pure substance

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? mercury?

-pure substance

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? oxygen?

-pure substance

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? sugar?

-pure substance

elements, compounds, and mixtures worksheet: MIXTURE OR PURE SUBSTANCE? water?

-pure substance

compounds:

-pure substances made up of 2 or more elements combined chemically. (aluminum and sulfur) -have their own unique properties. the compound's properties are different from the properties of the elements that make it up.

elements, compounds, and mixtures worksheet: in a mixture do the substances lose or retain their identities?

-retain

what is an example of a heterogenous mixture?

-salad

physical separation: chromotography:

-separates pigment/color (color paper strips)

atoms:

-smallest particles that maintain the properties of an element.

what is an example of a compound that forms a crystal structure?

-sodium chloride

four states of matter:

-solid -liquid -gas -plasma

homogenous mixtures are also called?

-solutions

elements:

-substances that cannot be separated into any other substances. _________ are a type of pure substance. (nature /enviornment)

elements, compounds, and mixtures worksheet: what is a molecule?

-the smallest identifiable unit of a compound, made up of elements which are chemically combined.

elements, compounds, and mixtures worksheet: what is an atom?

-the smallest identifiable unit of an element

elements, compounds, and mixtures worksheet: true or false? in a compound the elements involved cannot be separated by a simple physical process because the elements are chemically bonded.

-true

mixture:

-two or more substances in any proportion and do not chemically combine. -can be made up of elements, compounds, or bth

physical separation: filtration:

-using a filter to seperate solids and liquids (water and sand)

the properties of mixtures are _______________. it depends on what substances make up the mixture and the amount of those substances.

-variable

what is an example of a compound that forms a molecule?

-water