chemistry exam study guide
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| study of the composition and stucture of the material and the changes that materials undergo best describes the science of | chemistry
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| the branch of science that includes the study of materials and process that occur in livings is | biochemistry
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| the branch of chemistry that is concerned with the identification and composition of materialsis | analytical chemistry
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| the study of substance containing carbon is | organic chemistry
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| the branch of chemistry concerned withtheproperties, changes, and relationships betwen energy and matteris | theoretical chemistry
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| basic researchis | carried out for the sake of increases knowlege
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| a physical property may be investigated by | melting ice
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| two features that may distinguish matter are | mass and volume
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| an example of an extensive physical property is | mass
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| which of the following is an intensive physical property | color
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| which of the following obervations is quantitative | the liquid turns blue litmus paper red
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| quantitative observation are recorded using | numerical infomation
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| qualitative observation are recorded using | non-numerical infomation
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| the SI standard unit for length and mass are | meter and kilometer
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| the metric unit for length that is closes to the thickness of a dime is the | milimeter
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| the symbol for the metric unit used to measure mass is | g
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| the unit m3 measures | volume
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| the symbol that represents the measure unit for volume | mL
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| the SI base unit for time is the | second
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| a change in the force of earth's gravity on an object will effect its | weight
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| a nuclear partical that has about the same mass as a proton, but with no electricalcharge, is called | neutron
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| gamma rays are | elecctromagnetic waves
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| phosphorus-33 contains | 18 neutrons
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| a nuclear partical that has about the same mass as a proton, but with no electrical charge, is called | neutron
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| the smallest unit of an element that can exsit alone or in combination with other such partcals is an | atom
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| which of the following forms of radiation has the greates penetrating power | gamma rays
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| as the atomic number increases, the number of electrons in an atom | increase
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| what does the 101 in 256/101 Md reprsent | the atomic number
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| who called an "atom" an atom | democritus
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| what is the atomic number of tungsten | 74
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| the distance between to successive peaks on a wave is its | wavelenght
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| an element with 8 electrons from its highest main energy level is a | noble gas
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| the emission of electrons from metals that have absored photons is called | photoelectric effect
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| the region outside the nucleus where an electron can most probably be foud is | electron cloud
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| how many quantum numbers are needed to discribe the energy state of an electronin an atom | 4
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| the wave modle of light did not explain | the photoelectric effect
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| which group are the noble gas | 18
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| what is the total number of electrons needed to fill the first two main energy levels? | 10
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| the atomic sublevel with the next highest energy after 4p is? | 5s
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| the number of orbitals for the d sublevel is | 5
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| To which group do lithium and potassium belong? | alkali metals
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| The discovery of the noble gases changed Mendeleev's periodic table by adding a new | group
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| Elements in a group or column in the periodic table can be expected to have similar | properties
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| Mendeleev predicted that the spaces in he periodic table represented | undiscovered elements
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| Mendeleev attempted to organize the elements based on their | properties
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| In the modern periodic table, elements are orderd according to | increasing atomic number
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| The most useful source of general information about the elements for anyone associated with chemistry is a | periodic table
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| Argon, crypton, and xenon are | noble gases
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| ONe-half the distance between the nuclei of identical atoms are bonded together is called the | atomic value
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| To which group do flourine and chlorine belong? | Halogens
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| The principle that states that the physical and chemical properties of the elemtns are periodic functions of their atomic number is | the peridoic law
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| To which group do lithium and potassium belong? | alkali metals
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| The discovery of the noble gases changed Mendeleev's periodic table by adding a new | group
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| Elements in a group or column in the periodic table can be expected to have similar | properties
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| Mendeleev predicted that the spaces in he periodic table represented | undiscovered elements
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| Mendeleev attempted to organize the elements based on their | properties
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| In the modern periodic table, elements are orderd according to | increasing atomic number
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| The most useful source of general information about the elements for anyone associated with chemistry is a | periodic table
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| Argon, crypton, and xenon are | noble gases
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| ONe-half the distance between the nuclei of identical atoms are bonded together is called the | atomic value
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| To which group do flourine and chlorine belong? | Halogens
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| The principle that states that the physical and chemical properties of the elemtns are periodic functions of their atomic number is | the peridoic law
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| covalent bond results when what is shared | electrons
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| most cemical bonds are | partly ionic and partly covalent
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| an octet is equal to | 8
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| which of the following is not an example of a molecular formula | B
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| if two covalent bonded atoms are identical, the bond | non-polar covalent
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| compare with ioniccompounds, molecularcompounds | have lower melting points
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| the B--F in BF3 is | ionic
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| the chemical bond formed when two atoms share electrons are called | covalent bonds
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| atoms are what when they are combined | more stable
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| a mutual elecrtical attraction between the nuclei and valence electrons of a different atoms that binds the atoms together is called | chemical bonds
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