Chemistry Exam 1 Review

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heat conductiuity ( is it a physical/ chemical property or physical/chemical change)
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physical property
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Silver tarnishing ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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sublimation ( is it a physical/ chemical property or physical/chemical change)
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physical change
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magnetizing steel ( is it a physical/ chemical property or physical/chemical change)
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physical property
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length of metal object ( is it a physical/ chemical property or physical/chemical change)
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physical proerty
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shortening melting ( is it a physical/ chemical property or physical/chemical change)
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physical change
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exploding dynamite ( is it a physical/ chemical property or physical/chemical change)
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chemical change
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combustible ( is it a physical/ chemical property or physical/chemical change)
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chemical change
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water freezing ( is it a physical/ chemical property or physical/chemical change)
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physical change
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wood burning ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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acid resistance ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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brittleness ( is it a physical/ chemical property or physical/chemical change)
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physical change
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milk souring ( is it a physical/ chemical property or physical/chemical change)
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chemical change
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baking bread ( is it a physical/ chemical property or physical/chemical change)
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chemical change
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( T& F) A change in size or shape is a physical change
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true
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( T& F) a chemical change means a new substance with new properties was formed
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true
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( T& F) an example of chemical change is when water freezes
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false
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( T& F) when platinum is heated, then cooled to its original state, we say this is a physical change
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false
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you leave your bicycle out in the rain and it rust (chemical or physical change)
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chemical change
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a sugar cube dissolves (chemical or physical change)
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physical change
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Scientist break-up water into oxygen and hydrogen gas (chemical or physical change)
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chemical change
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Burning coal for barbecue (chemical or physical change)
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chemical change
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Trimming a bush because it has grown too tall (chemical or physical change)
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physical change
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Silver tarnishes when it comes in contact with hydrogen sulfide in the air ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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A banana is yellow ( is it a physical/ chemical property or physical/chemical change)
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physical property
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A sheet of copper is pounded into a bowl ( is it a physical/ chemical property or physical/chemical change)
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physical change
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barium melts at 725*C ( is it a physical/ chemical property or physical/chemical change)
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physical change
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Gasoline is fammable ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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A diamond is the hardest natural substance ( is it a physical/ chemical property or physical/chemical change)
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physical property
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helium does not react with any other element ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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a bar of lead is more easily bent than is a bar of aluminum of the same size ( is it a physical/ chemical property or physical/chemical change)
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physical property
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Potassium metal is kept submerged in oil to prevent contact with oxygen or water ( is it a physical/ chemical property or physical/chemical change)
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chemical property
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sand ( element, compound, solution/ homogeneous, heterogeneous)
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hetero
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salt ( element, compound, solution/ homogeneous, heterogeneous)
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compound
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pure water ( element, compound, solution/ homogeneous, heterogeneous)
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solution
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soil ( element, compound, solution/ homogeneous, heterogeneous)
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hetero
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Carbon Dioxide ( element, compound, solution/ homogeneous, heterogeneous)
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comp
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gold ( element, compound, solution/ homogeneous, heterogeneous)
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element
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Brass ( element, compound, solution/ homogeneous, heterogeneous)
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comp
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oxygen ( element, compound, solution/ homogeneous, heterogeneous)
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ele
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Italin Salad Dressing ( element, compound, solution/ homogeneous, heterogeneous)
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heter
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salt water ( element, compound, solution/ homogeneous, heterogeneous)
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homo
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silver ( element, compound, solution/ homogeneous, heterogeneous)
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ele
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lithium iodide ( element, compound, solution/ homogeneous, heterogeneous)
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comp
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apple pie ( element, compound, solution/ homogeneous, heterogeneous)
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heter
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sugar water ( element, compound, solution/ homogeneous, heterogeneous)
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homo
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chocolate chip cookies ( element, compound, solution/ homogeneous, heterogeneous)
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heter
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tacos ( element, compound, solution/ homogeneous, heterogeneous)
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heter
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lead ( element, compound, solution/ homogeneous, heterogeneous)
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ele
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calcium ( element, compound, solution/ homogeneous, heterogeneous)
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ele
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whole milk ( element, compound, solution/ homogeneous, heterogeneous)
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homo
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skim milk ( element, compound, solution/ homogeneous, heterogeneous)
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homo
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hydrogen peroxide ( element, compound, solution/ homogeneous, heterogeneous)
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comp
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potassium ( element, compound, solution/ homogeneous, heterogeneous)
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ele
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sugar ( element, compound, solution/ homogeneous, heterogeneous)
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comp
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the smallest unit of an element that maintains the chemical properties of that element
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atom
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a mixture consisting of tiny particles that are intermediat in size between those in solutions and those in suspension and that are suspended in a liquid, solid, or gas
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colloid
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a substannce made up of atoms of two or more different elements joined by chemical bonds
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compound
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the change of state from a gas to a liquid
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condensation
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a change the occurs when one or more substance change into entirely new substances with different properties
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chemical change
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a property of matter
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chemical property
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wood buring
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