Spring Benchmark #2 Review
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Transcript of Spring Benchmark #2 Review
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Spring Benchmark #2 ReviewSpring Benchmark #2 Review
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Identify the coefficients to properly balance Identify the coefficients to properly balance the following equation:the following equation:
Na + AuClNa + AuCl33 NaCl + Au NaCl + Au
A.A.3,3,1,13,3,1,1
B.B.3,1,3,13,1,3,1
C.C.1,3,1,31,3,1,3
D.D.1,1,3,31,1,3,3
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Identify the potential Identify the potential energy of the products.energy of the products.
A. 50 kJA. 50 kJ B. 200 kJB. 200 kJ C. 100 kJC. 100 kJ D. 150 kJD. 150 kJ
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2H2H22 + O + O22 2H 2H22OO
If 3.25 moles of hydrogen react with oxygen, If 3.25 moles of hydrogen react with oxygen, how many grams of water can be produced?how many grams of water can be produced?
A. 100 gA. 100 g
B. 117 gB. 117 g
C. 29.25 gC. 29.25 g
D. 58.5 gD. 58.5 g
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Calculate the enthalpy Calculate the enthalpy change for the change for the reaction.reaction.
A. 200 kJA. 200 kJ B. 50 kJB. 50 kJ C. 100 kJC. 100 kJ D. 250 kJD. 250 kJ
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What effect does a catalyst have on a What effect does a catalyst have on a reaction?reaction?
A. lowers the activation energy requiredA. lowers the activation energy required B. decreases enthalpyB. decreases enthalpy C. increases enthalpyC. increases enthalpy D. no changeD. no change
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Write the reaction for the combustion of Write the reaction for the combustion of propane (Cpropane (C33HH88).).
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In any chemical reaction, the mass In any chemical reaction, the mass of the products is ___ the mass of of the products is ___ the mass of
the reactants. the reactants.
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1.1. Greater thanGreater than
2.2. Less thanLess than
3.3. Equal toEqual to
4.4. None of the aboveNone of the above
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Na + AuClNa + AuCl33 NaCl + Au NaCl + Au
Identify the type of reaction shown above.Identify the type of reaction shown above.
A. Single replacementA. Single replacement
B. synthesisB. synthesis
C. Double replacementC. Double replacement
D. decompositionD. decomposition
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Identify the melting Identify the melting point of the substance point of the substance at 73 atm.at 73 atm.
A. 216.6 KA. 216.6 K B. 304.25 KB. 304.25 K C.197.5 KC.197.5 K D. 0 KD. 0 K
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Balance the following equation:Balance the following equation:___K + ___O___K + ___O22 __ K __ K22OO
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1.1. 4,1,24,1,2
2.2. 4,2,14,2,1
3.3. 1,1,11,1,1
4.4. 2,4,12,4,1
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Which gas composes the greater Which gas composes the greater percentage of the atmosphere?percentage of the atmosphere?
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1.1. HeliumHelium
2.2. HydrogenHydrogen
3.3. NitrogenNitrogen
4.4. OxygenOxygen
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The instrument used to measure The instrument used to measure temperature is the ___.temperature is the ___.
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1.1. BalanceBalance
2.2. ThermometerThermometer
3.3. BarometerBarometer
4.4. Graduated cylinderGraduated cylinder
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Identify the phase Identify the phase chage when the chage when the temperature changes temperature changes from 197.5 K to 250 K if from 197.5 K to 250 K if the pressure remains the pressure remains constant at 73 atm.constant at 73 atm.
A. freezingA. freezing B. sublimationB. sublimation C. DepositionC. Deposition D. meltingD. melting
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In the metric system, temperature is In the metric system, temperature is measured on the ___ scale.measured on the ___ scale.
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1.1. CelsiusCelsius
2.2. FahrenheitFahrenheit
3.3. CesiumCesium
4.4. FranciumFrancium
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Calculate the energy required to melt 45 g of Calculate the energy required to melt 45 g of ice. ice.
Heat of fusion=334Heat of fusion=334 Heat of vaporization=2260Heat of vaporization=2260 A.101,700JA.101,700J B.15030JB.15030J C.0.134JC.0.134J D.6.65JD.6.65J
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Regular Chem onlyRegular Chem only
Identify the type of particle that can be Identify the type of particle that can be blocked by concrete or leadblocked by concrete or lead
A. AlphaA. Alpha B. BetaB. Beta C. GammaC. Gamma
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A child notices her balloon is smaller inside A child notices her balloon is smaller inside her air conditioned house than outside in the her air conditioned house than outside in the
sun. This is an example of ___ law.sun. This is an example of ___ law.
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1.1. Avogadro’sAvogadro’s
2.2. Boyle’sBoyle’s
3.3. Charles’Charles’
4.4. Graham’sGraham’s
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What is the normal What is the normal sublimation point of the sublimation point of the substance?substance?
A. 216.6 KA. 216.6 K B. 304.25 KB. 304.25 K C. 197.5 KC. 197.5 K D. 0 KD. 0 K
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According to Boyle’s law, the According to Boyle’s law, the pressure of a gas will ___ when the pressure of a gas will ___ when the
volume decreases.volume decreases.
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1.1. IncreaseIncrease
2.2. DecreaseDecrease
3.3. Remain the sameRemain the same
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Air consists of ___.Air consists of ___.
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1.1. One kind of gasOne kind of gas
2.2. A mixture of several gasesA mixture of several gases
3.3. A single compoundA single compound
4.4. Only non-reactive gasesOnly non-reactive gases
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All of the following are pressure units All of the following are pressure units exceptexcept
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1.1. mm Hgmm Hg
2.2. atmatm
3.3. kPakPa
4.4. KK
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As the temperature increases, the As the temperature increases, the motion of particles ___.motion of particles ___.
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1.1. IncreasesIncreases
2.2. DecreasesDecreases
3.3. Remains the sameRemains the same
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No molecular motion occurs ___.No molecular motion occurs ___.
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1.1. At nightAt night
2.2. In the atmosphereIn the atmosphere
3.3. At absolute zeroAt absolute zero
4.4. At the freezing pointAt the freezing point
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Of the three states of matter, ___ is Of the three states of matter, ___ is the highest energy.the highest energy.
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1.1. SolidSolid
2.2. LiquidLiquid
3.3. GasGas
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Particles of matter in the ___ state Particles of matter in the ___ state are moving very quickly and do not are moving very quickly and do not
form a definite pattern.form a definite pattern.
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1.1. SolidSolid
2.2. GaseousGaseous
3.3. AtomicAtomic
4.4. NuclearNuclear
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As the temperature in a tank of As the temperature in a tank of propane increases, the pressure propane increases, the pressure
___.___.
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1.1. IncreasesIncreases
2.2. DecreasesDecreases
3.3. Remains constantRemains constant
4.4. Decreases, then increasesDecreases, then increases
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Because of its high heat capacity, Because of its high heat capacity, the temperature of ___ changes the temperature of ___ changes slower than most substances.slower than most substances.
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1.1. AlcoholAlcohol
2.2. OilOil
3.3. GasolineGasoline
4.4. WaterWater
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STP is ___.STP is ___.
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1.1. 00ooC and 1 atm pressureC and 1 atm pressure
2.2. 00ooK and 1 atm pressureK and 1 atm pressure
3.3. 2525ooC and 1 atm pressureC and 1 atm pressure
4.4. 273273ooC and 700 mm HgC and 700 mm Hg
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The process by which a liquid is The process by which a liquid is converted to a gas without boiling is converted to a gas without boiling is
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1.1. PrecipitationPrecipitation
2.2. EvaporationEvaporation
3.3. CondensationCondensation
4.4. VaporizationVaporization
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The __ the altitude, the lower the The __ the altitude, the lower the pressure.pressure.
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1.1. LowerLower
2.2. HigherHigher
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What volume will one mole of a gas What volume will one mole of a gas occupy under STP?occupy under STP?
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1.1. 1 L1 L
2.2. 22.4 L22.4 L
3.3. 273 L273 L
4.4. 293 L293 L
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What idea can be used to explain What idea can be used to explain both Boyle’s and Charles’ laws?both Boyle’s and Charles’ laws?
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1.1. Atomic theoryAtomic theory
2.2. Kinetic molecular theoryKinetic molecular theory
3.3. Law of conservation of matterLaw of conservation of matter
4.4. Law of conservation of energyLaw of conservation of energy
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Which law explains why bread rises Which law explains why bread rises when baked?when baked?
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1.1. Avogadro’sAvogadro’s
2.2. Boyle’sBoyle’s
3.3. Charles’Charles’
4.4. Graham’sGraham’s
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Which law explains why soft drinks Which law explains why soft drinks “pop” when opened? “pop” when opened?
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1.1. Avogadro’sAvogadro’s
2.2. Boyle’sBoyle’s
3.3. Charles’Charles’
4.4. Kelvin’sKelvin’s
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Any time physical or chemical Any time physical or chemical changes occur, you also ___.changes occur, you also ___.
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1.1. Have energy changesHave energy changes
2.2. Gain massGain mass
3.3. Lose energyLose energy
4.4. Have color changesHave color changes
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In a(n) __ reaction, energy is given In a(n) __ reaction, energy is given off.off.
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1.1. EndothermicEndothermic
2.2. ExothermicExothermic
3.3. IsothermicIsothermic
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The energy in compounds is held in The energy in compounds is held in the the
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1.1. Oxygen atomsOxygen atoms
2.2. Hydrogen atomsHydrogen atoms
3.3. Chemical bonds between atomsChemical bonds between atoms
4.4. Water moleculesWater molecules
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The minimum energy needed to start The minimum energy needed to start a reactions is called the a reactions is called the
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1.1. Energy of formationEnergy of formation
2.2. Lattice energyLattice energy
3.3. Bond energyBond energy
4.4. Activation energyActivation energy
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When chemicals are mixed in a test When chemicals are mixed in a test tube and the test tube becomes tube and the test tube becomes
hotter, a __ reaction has occurred.hotter, a __ reaction has occurred.
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1.1. ExogenicExogenic
2.2. ExothermicExothermic
3.3. EndogenicEndogenic
4.4. EndothermicEndothermic
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A compound that speeds up a A compound that speeds up a reaction without being consumed reaction without being consumed
itself is a(n)itself is a(n)
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1.1. AdditiveAdditive
2.2. CatalystCatalyst
3.3. Raw materialRaw material
4.4. ResourceResource
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If you increase the temperature, the If you increase the temperature, the rate of reaction willrate of reaction will
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1.1. IncreaseIncrease
2.2. DecreaseDecrease
3.3. Remain the sameRemain the same
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In chemical equations, “aq” meansIn chemical equations, “aq” means
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1.1. In a water solutionIn a water solution
2.2. A crystalA crystal
3.3. A pure compoundA pure compound
4.4. A gasA gas
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In a combustion reaction, the In a combustion reaction, the products areproducts are
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1.1. HydrogenHydrogen
2.2. Carbon dioxide and waterCarbon dioxide and water
3.3. Oxygen and waterOxygen and water
4.4. oxygenoxygen
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The chemicals on the left side of the The chemicals on the left side of the arrow are calledarrow are called
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1.1. MoleculesMolecules
2.2. ReactantsReactants
3.3. ProductsProducts
4.4. SugarSugar
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