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Published byArthur Clarke Modified over 9 years ago
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Elements in Group 1A will form what type of ion? +1 cation
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What is the singlemost important characteristic used to organize atoms in the periodic table? Atomic number or proton number
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What is the ideal gas law formula? PV=nRT
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Vertical columns are known as Groups or Families
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What 2 things are represented in a Lewis Dot Diagram? Atom symbol Valence electrons
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What type of ion do atoms in Group VIA form? -2 anions
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What are the 2 main types of intramolecular bonds? IonicCovalent
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The most electronegative atom on the periodic table Fluorine
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In a solution containing water, carbon dioxide and sugar, name the solvent(s) and solute(s) Solvent – water Solutes – carbon dioxide & sugar
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What type of relationship exists between atomic radius and bond length trends on the periodic table? Direct relationship as radius increases, bond length increases as radius increases, bond length increases
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Positive ions are called Cations
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What type of bond is formed when electrons are share equally between nuclei? Nonpolar covalent
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What is the formula for Phosphoric acid? H 3 PO 4
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These types of molecules have dipoles Polar molecules
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The distance from the center of an atom’s nucleus to it’s valence shell is known as it’s Atomic radius
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This is the weakest of the intermolecular forces Dispersion Force
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These types of bonds are longer than double bonds Single bonds
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What is the formula for the ionic compound containing Ca +2 and Cl -1 ? CaCl 2
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These types of solids behave as supercooled liquids Amorphous Solids
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P 1 V 1 =P 2 V 2 Which gas law is this the formula for - P 1 V 1 =P 2 V 2 Boyles Law
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What is the formula for the polyatomic ion sulfate? SO 4 -2
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What do atoms in period 3 all have in common? 3 energy levels
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The measure of an atom’s ability to attract electrons Electronegativity
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What is the formula for Bromine gas? Br 2
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What happens to the atomic radius as you move from left to right within a period on the periodic table? Decreases
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What do elements in Group VIIA have in common? 7 valence electrons
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In the writing of an ionic compound, how do we determine the number of each atom in the compound? Criss cross the ionic charges
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What type of intermolecular bonds form between water molecules due to their polarity? Hydrogen bonds
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Bonds in which static electrical attraction is holding atoms together Ionic
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What element has the following electron configuration: [Ne]3s 2 3p 5 Cl - Chlorine (atomic # 17)
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What is the suffix on monoatomic anions? -ide
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What type of equation is - Aluminum + chloride Aluminum chloride Synthesis
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In naming an ionic compound, which ion is always listed first? Cation (positive ion)
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What is the name of this polyatomic ion: NH 4 + Ammonium
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In this type of bond, shared electrons spend more time near one nucleus than another Polar Covalent
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When an atom gains electrons what does it become? Anion (negatively charged ion)
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What is the relationship between bond length and bond strength? Inverse, As bond length increases, strength decreases
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This theory explains molecular shape as a function of electron pairs arranging themselves as far apart from one another as possible VSEPR - Valence Shell Electron Pair Repulsion
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What law are we following when we balance a chemical equation? Law of Conservation of Mass
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One mole of a compound contains how many particles? 6.02x10 23 particles
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Balance the following equation: Ca(ClO 3 ) 2 CaCl 2 + O 2 Ca(ClO 3 ) 2 CaCl 2 + 3O 2
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What is the formula for: iron (III) carbonate? Fe 2 (CO 3 ) 3
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Write the balanced equation for the following word equation: Aluminum chloride + Calcium Aluminum + Calcium chloride 2AlCl 3 + 3Ca 2Al + 3CaCl 2
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What type of equation is - Aluminum chloride + Calcium Aluminum + Calcium chloride Single Replacement
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What is the formula for: iron (III) carbonate? Fe 2 (CO 3 ) 3
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2Al + 3Br 2 2AlBr 3 What type of reaction is the one previously written? 2Al + 3Br 2 2AlBr 3 Synthesis reaction
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What is the balanced equation for the decomposition of hydrogen peroxide into water and oxygen gas? 2H 2 O 2 2H 2 O + O 2
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What does the abbreviation STP stand for? Standard Temperature & Pressure
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One mole of carbon has a mass of how many grams? 12 grams
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6.02x10 23 is also known as Avagodro’s Number
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The sum of the masses of the elements composing a compound is known as its Formula Mass
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What is the percent composition of CO 2 ? %C = 12/44 = 27% %O = 16(2)/44 = 73%
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One mole of any gas has what molar volume? 22.4 Liters
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The mass of each element in a compound divided by the formula mass is the Percent composition
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Write the balanced formula for the reaction of iron with oxygen gas to form iron (III) oxide. 4Fe + 3O 2 2Fe 2 O 3
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If 4.3g of iron reacts with oxygen, as in the previous formula, what mass of Fe 2 O 3 would be produced? 6.1 g Fe 2 O 3 4.3g Fe1mol Fe2mol Fe 2 O 3 160g Fe 2 O 3 56g Fe4mol Fe1mol Fe 2 O 3
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Determine the molarity of a solution containing 10g of sodium hydroxide in.5L of water 0.5M NaOH 10g NaOH1mol NaOH=.25 mol NaOH 40g NaOH 0.5L = 0.5M NaOH
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How many liters of oxygen are required for the previous reaction? 1.29 L O 2 4.3g Fe1mol Fe3mol O 2 22.4 L O 2 56g Fe4mol Fe1mol O 2
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Aluminum reacts with bromine gas to produce aluminum bromide. What is the balanced equation for this reaction? 2Al + 3Br 2 2AlBr 3
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If 15.0g Al reacts with 46.0g Br 2, which is the limiting reactant? 46.0g Br 2 15.0g Al1mol Al2mol AlBr 3 267g AlBr 3 27g Al2mol Al1mol AlBr 3 46.0g Br 2 1mol Br 2 2mol AlBr 3 267g AlBr 3 160g Br 2 3mol Br 2 1mol AlBr 3 = 51.2g = 148.3g
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Find the empirical formula for the compound that consists of 20.23% Al and 79.77% Cl. AlCl 3 20.23g Al1mol Al=.75 mol Al 27g Al 79.77g Cl1mol Cl= 2.28 mol Cl 35g Cl.75 = 1 = 3
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If the molar mass of the compound in the previous question is 264g, what is the molecular formula? Al 2 Cl 6 AlCl 3 formula mass = 132 264/132 = 2
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Name the 4 factors that influence the behavior of a gas. VolumePressureTemperatureAmount
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For the formula 2P + 3Br 2 2PBr 3, if 5.0g P and 35g of Br 2 react, what is the limiting reactant and how what mass of PBr 3 is produced? 35g Br 2 produces 39.5g PBr 3 5.0g P1mol P2mol PBr 3 271g PBr 3 31g P2mol P1mol PBr 3 35g Br 2 1mol Br 2 2mol PBr 3 271g PBr 3 160g Br 2 3mol Br 2 1mol PBr 3 = 43.7g = 39.5g
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If the actual yield of PBr3 from the previous problem is 30g, what is the percent yield? 75.9% 30g/39.5g
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What is an aqueous solution? A solution in which water is the solvent
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Balance the following equation: Ca(ClO 3 ) 2 CaCl 2 + O 2 Ca(ClO 3 ) 2 CaCl 2 + 3O 2
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One of the unique properties of water is the large amount of heat needed to change it from liquid to gas. This is known as Heat of Vaporization
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Write the balanced equation for the following word equation: Aluminum chloride + Calcium Aluminum + Calcium chloride 2AlCl 3 + 3Ca 2Al + 3CaCl 2
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This is a measure of the amount of heat needed to raise 1g of liquid by 1 o C. Specific Heat
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If the pH of a solution is 2, what is the hydrogen ion concentration? 10 -2
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What is the term used for the idea that no kinetic energy is lost due to collisions within a gas? Elastic
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Rank the 3 states of matter by the strength of their intermolecular forces from weakest to strongest. GasLiquidSolid
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Acids, by which definition, donate H+ ions to solution? Bronsted-Lowry
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Have mass Fill container Exert pressure Pressure depends on temperature Compress easily Move through one another easily Name at least 4 properties of gases.
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This is the strongest of the intermolecular formulas due to the large differences in electronegativities within the molecules. Hydrogen bonds
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What is the formula for Charles’ Law? V 1 T 2 = V 2 T 1
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These types of solids have highly ordered repeating patterns. Crystalline Solids
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What unit is used as a measure of concentration and defined as moles per liter? Molarity
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This is the measure of resistance as molecules of a liquid move past one another Viscosity
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A neutralization reaction between a strong acid and strong base will yield what 2 products? A Salt and Water
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Substances that resist changes in pH are known as Buffers
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In pure water, the concentrations of which 2 ions are equal? H + and OH -
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