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24 Cards in this Set
- Front
- Back
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What does a metal carbonate decompose into?
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metal oxide and carbon dioxide
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What does a metal oxide produce when mixed with water?
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metal hydroxide
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What does a non-metal oxide produce when mixed with water?
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acid
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What ions will Cl, Br, and I form precipitates with?
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Ag+, Pb 2+, Hg+
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What does ammonium nitrate (NH4NO3) decompose into?
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N2 gas, O2 gas, and water vapor
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What does ammonium carbonate ((NH4)2CO3) decompose into?
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NH3, CO2, and H2O
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How do you write a rxn involving Ksp?
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break solid into its ions
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How do you determine which way a rxn will shift?
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either a) calculate Q or b) use up and down arrows if not given numbers
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How do you determine who will get oxidized or reduced?
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look at reduction potentials; higher reduction potential, more likely it will be reduced
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What makes an acid a strong base?
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a) stable conjugate bases w/ resonance structures
b) lots of electronegative atoms pulling on H |
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How do you know electrolysis is happening?
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negative voltage, positive delta g, energy being added
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When do you use an integrated rate law?
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a kinetics question involving time
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What is the half-life expression for a 1st order rxn?
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t1/2=.693/k
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What makes a metal really reactive?
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loses electrons really well, low reduction potential, group 1A metal
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What is the % error calculation?
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(actual-theoretical)/theoretical x100
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What is the equation for osmotic pressure?
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OP=MRT (R=.08 atm L/n K)
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Who do you calculate molar mass from osmotic pressure?
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solve for M, use L to get to moles, mass over moles
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Formulas of: a) ethanoic acid b) ethanol c) ethanal d) ethyl amine e)diethyl ether f) propanone
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a) CH3COOH b) CH3CH2OH c) CH3CHO d) CH3CH2NH2
e)C4H10O f) C3H6O |
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Which funtctional group is basic?
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amine
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Which funtctional groups can form H-bonds?
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caboxylic acid, amine, alcohol
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What is an isotope?
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same element, different mass, different number of neutrons
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Whta is the difference between the Bohr and quantum model of the atom?
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Bohr: electron as particle, can know electron location
Quantum: electron as a wave, cannot know where e- is |
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How do we know there is a nucleus?
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Rutherford experiment- shot alpha particles at atom, some were deflecte, indicating a dense positive charge
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Under what conditions do gases dissolve best (and act the least ideal?
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low temperatures and high pressures
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