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74 Cards in this Set
- Front
- Back
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A sheet of aluminum foil has a total area of 1.000ft^2 and a mass of 3.636g. The density of aluminum is 2.699g/cm^3.What is the height of the sheet?
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1.45x10^-2
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What did Democritus saw that matter is made of?
What is the word meaning indivisible? |
every substance is made of tiny building blocks that are indivisible and distinct.
b)atomos |
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What did John Dalton say that matter is made of?
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composed of fundamental building blocks called atoms.
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What is used to treat Grave's disease? (hyperthryoidism)
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radioactive form of iodine-131
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What is the arrangement of these categories in the periodic table?
a)group d)nonmetals b)period e)metalloids c)metals |
a)group-goes down
b)period-across c)metals-left side of zig-zag d)nonmetals-right side of zigzag e)metalloids-zigzag |
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What is the difference between a compound and a mixture?
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a mixture is not a fixed ratio
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What is it called when the atoms in the reactants are rearranged to form new products?
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a chemical reaction
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What is the law of conservation of mass?
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matter cannot be created or destroyed
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What did J.J Thompson do?
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his cathode ray experiment measured the charge to mass ratio of the electron
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What did R.A. Millikan do?
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his Oil Drop experiment determined the charge of the elctron.
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What is the difference between a molecule and a compound?
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a molecul is covalently bonded that doesn't have to be different elements. It is an aggregate of 2 or more atoms in a definite arrangement held together.
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What kind of atoms are molecules usually formed of?
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nonmetal atoms
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What are diatomic molecules
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molecules that contain only two atoms
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What are all the diatomic molecules (other than the ones with two elements)
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02, N2, H2, Cl2, Br2, I2, F2, and the elements that contain two elements, ex. HCl, CO
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What are polyatomic molecules?
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molecules that contain more than two atoms.
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Give some examples of polyatomic molecules?
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O3, H2O, NH3, CH4
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What are ions?
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an atom or group of atoms that has a net positive or negative charge.
atoms become ions by losing or gaining electrons |
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The loss of one or more electrons from a neutral atom results in _______. an ion with a net positive charge
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a cation
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An ion whose net charge in negative is called ________.
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an anion
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Aluminum
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(Al^3+)
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Ammonium
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(NH4^+)
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Barium
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(Ba^2+)
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Cadmium
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(Cd^2+)
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Calcium
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(Ca^2+)
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Cesium
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(Cs^+)
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Chromium (III) or chromic
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(Cr^3+)
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Cobalt (II) or cobaltous
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(Co^2+)
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Copper (I) or cuprous
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(Cu^2+)
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Hydrogen
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H^+
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Iron (II) or ferrous
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Fe^2+
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Iron (III) or ferric
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Fe^3+
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Lead (II) or plumbous
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Pb^2+
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Lithium
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Li^+
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Magnesium
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Mg^2+
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Manganese (II) or manganous
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Mn^2+
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Mercury (I) or mercurous
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HgI^ 2+
2 |
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Mercury (II) or mercuric
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Hg^ 2+
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Potassium
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K^+
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Silver
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Ag^+
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Sodium
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Na+
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Strontium
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Sr^2+
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Tin (II) or stannous
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Sn^2+
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Zinc
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Zn^2+
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Bromide
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Br-
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Carbonate
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CO^2-
3 |
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Chlorate
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CIO3^-
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Chloride
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Cl^-
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Chromate
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CrO4^2-
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Cyanide
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CN^-
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Dichromate
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Cr2O7^2-
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Dihydrogen phosphate
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H2PO4^-
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Fluoride
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F^-
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Hydride
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H^-
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Hydrogen carbonate or bicarbonate
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HCO3^-
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Hydrogen phophate
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HPO4^2-
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Hydrogen sulfate or bisulfate
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HSO4^-
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Hydroxide
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OH^-
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Iodide
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I^-
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Nitrate
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NO3^-
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Nitride
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N^3-
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Nitrite
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NO2^-
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Oxide
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O^2-
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Permanganate
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MnO4^-
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Peroxide
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O2^2-
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Phosphate
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PO4 ^3-
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Sulfate
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SO4^2-
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Sulfide
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S^2-
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Sulfite
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SO3^2-
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Thiocyanate
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SCN^-
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Carbide
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C^4-
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Silicide
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Si^4-
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Phosphide
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P^3-
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Selenide
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Se^2-
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Telluride
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Te^2-
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