Q4-W2: Chemical Equilibrium Flashcards
EQUILIBRIUM
BALANCE
STABLE
EQUAL
STEADY
______________ of the color
changes of the indicator if a
______ and an ___________ are added
alternately to the extract.
Reversibility, BASE, ACID
In _____________ reactions, the
reactants are not completely
converted into products and some
of the products may be converted
back into reactants.
REVERSIBLE
Ice melting
into water and water
freezing into ice
REVERSIBLE REACTIONS
When all the reactants in a reaction
are used up the reaction is said to
have gone to completion or
considered _____________ reaction.
IRREVERSIBLE
Paper burning
IRREVERSIBLE REACTIONS
Double headed arrow
⇄
Forward and
backward reactions
occurring
simultaneously
Reversible
Reactions
Single headed arrow
⟶
Forward reaction
only
Irreversible
Reactions
In general terms, a reversible
reaction may be presented as follows:
aA + bB ⇌ cC + dD
NOTE: where the lower case letters represent the
stoichiometric coefficients of the reactants and products
A time-lapsed photograph of the traffic entering and leaving the City
of San Francisco in California, USA through the Golden Gate Bridge
No. of cars ENTERED = No. of cars LEFT
BALANCE
A state of
balance is also
referred to as a
state of ________.
EQUILIBRIUM
In a reversible reaction, when the
__________ start to form the
__________, the _________ would then
start to reform the __________.
In a reversible reaction, when the
reactants start to form the
products, the products would then
start to reform the reactants.
________________ is a condition
in the course of a reversible
chemical reaction in which ___________ in the amounts of reactants
and products occurs.
CHEMICAL EQUILIBRIUM, NO NET CHANGE
A condition where the _______________________ reaction rates of a
reversible reaction are ________________________.
FORWARD AND REVERSE, EQUAL AND CONSTANT
The forward and reverse reactions
proceed at the __________.
SAME RATE
