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45 Cards in this Set

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Do intensive properties depend upon the amount of matter present?
no
heat is defined as an _____ physical property because it is the sum total of the kinetic energy of the sample of matter.
extensive
The SI unit of heat is the ____ (J) or _______ (KJ)
Joule/kilojoule
1 cal=
4.148 J
1 kcal is the same as the Calorie which both=
1000 calories
heat energy changes are measured eperimentally in a device called a
calorimeter
Every substance has a physical property known as specific heat capacity, abbreviated as
C
Specific heat capactiy for water=
4.184 J/g x c
or
1.00 cal/g x c
how to calculate heat (lost or gained)
q=m x T x c
q=m x T x c

q=?
heat (energy)
q=m x T x c

m=?
mass
q=m x T x c

T=?
temperature change
q=m x T x c

c=?
specific heat capacity
acids have a ____ taste.
sour
_____ can conduct electricity in aqueous solution.
acids
acids on litmus indicator=
color turns to red
acids on Phenolphthalein=
turns colorless
active metals react with acid to release _____ gas.
hydrogen
acids react with bases to produce
salt+water
acids reacting with bases is called
neutralization
acids contain hydronium ions (formula ____) which are hydrated H+
H30
Bases have a _____ taste
bitter
Bases feel
slippery
bases can conduct electricity in _____ solutions
aqueous
bases in litmus indicator=
color turns to blue
bases in phenophthalein
turns pink
bases contain _____ ions
Hydroxide (OH)
bases react with acids to produce
salt+water
The theory of ionization was developed by
Arrhenius
molecular compounds dissolve in polar solvents to form ____
ions
no ions existed in the _____ compound
undissolved
molecular compounds are
covalent
ionization refers to ______ substances
molecular
dissociation refers to _______ substances
ionization
Strong electrolytes may ionize or dissociate _____ in aqueous solutions
completely
Weak electrolytes may ionize or dissociate _____ in aqueous solution
slightly
Arrhenius (traditional theory)

acids are substances that produce ____ in water solutions
H+
Arrhenius (traditional theory)

bases produce ____ in water solution
OH-
Bronsted-Lowry Theory:

acids are proton ____
donors (give up H+)
Bronsted-Lowry Theory:
bases are proton ___
acceptors (recieve H+)
Bronsted-Lowry Theory:
When a Bronsted-Lowry acid donates a H ion, a _____ is formed.
conjugate base
Bronsted-Lowry Theory:
When a Bronsted-Lowry base accepts a H ion, a ________ is formed
conjugate acid
Bronsted-Lowry Theory:
Two substances related to each other by the acid and conjugate of a H ion are a
conjugate acid-base pair
acids that have more than one ionizable proton (H+) are
polyprotic
during a ____ change use
q=mass x heat of fusion
phase