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