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45 Cards in this Set
- Front
- Back
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Do intensive properties depend upon the amount of matter present?
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no
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heat is defined as an _____ physical property because it is the sum total of the kinetic energy of the sample of matter.
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extensive
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The SI unit of heat is the ____ (J) or _______ (KJ)
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Joule/kilojoule
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1 cal=
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4.148 J
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1 kcal is the same as the Calorie which both=
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1000 calories
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heat energy changes are measured eperimentally in a device called a
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calorimeter
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Every substance has a physical property known as specific heat capacity, abbreviated as
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C
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Specific heat capactiy for water=
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4.184 J/g x c
or 1.00 cal/g x c |
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how to calculate heat (lost or gained)
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q=m x T x c
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q=m x T x c
q=? |
heat (energy)
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q=m x T x c
m=? |
mass
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q=m x T x c
T=? |
temperature change
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q=m x T x c
c=? |
specific heat capacity
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acids have a ____ taste.
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sour
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_____ can conduct electricity in aqueous solution.
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acids
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acids on litmus indicator=
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color turns to red
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acids on Phenolphthalein=
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turns colorless
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active metals react with acid to release _____ gas.
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hydrogen
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acids react with bases to produce
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salt+water
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acids reacting with bases is called
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neutralization
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acids contain hydronium ions (formula ____) which are hydrated H+
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H30
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Bases have a _____ taste
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bitter
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Bases feel
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slippery
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bases can conduct electricity in _____ solutions
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aqueous
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bases in litmus indicator=
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color turns to blue
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bases in phenophthalein
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turns pink
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bases contain _____ ions
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Hydroxide (OH)
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bases react with acids to produce
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salt+water
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The theory of ionization was developed by
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Arrhenius
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molecular compounds dissolve in polar solvents to form ____
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ions
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no ions existed in the _____ compound
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undissolved
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molecular compounds are
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covalent
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ionization refers to ______ substances
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molecular
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dissociation refers to _______ substances
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ionization
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Strong electrolytes may ionize or dissociate _____ in aqueous solutions
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completely
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Weak electrolytes may ionize or dissociate _____ in aqueous solution
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slightly
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Arrhenius (traditional theory)
acids are substances that produce ____ in water solutions |
H+
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Arrhenius (traditional theory)
bases produce ____ in water solution |
OH-
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Bronsted-Lowry Theory:
acids are proton ____ |
donors (give up H+)
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Bronsted-Lowry Theory:
bases are proton ___ |
acceptors (recieve H+)
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Bronsted-Lowry Theory:
When a Bronsted-Lowry acid donates a H ion, a _____ is formed. |
conjugate base
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Bronsted-Lowry Theory:
When a Bronsted-Lowry base accepts a H ion, a ________ is formed |
conjugate acid
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Bronsted-Lowry Theory:
Two substances related to each other by the acid and conjugate of a H ion are a |
conjugate acid-base pair
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acids that have more than one ionizable proton (H+) are
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polyprotic
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during a ____ change use
q=mass x heat of fusion |
phase
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