Classifying Reactions Flashcards
Synthesis Reactions
A+B–>AB
simple substances combine to form more complex compounds, forms one product
Decomposition Reactions
AB–> A+B
Complex compounds decompose into simpler substances
-These typically require energy to occur
-one reactant breaks down into more than one product
Single-displacement
A+BY–>AY+B
One element displaces another in a compound
What types of reactions are double-displacement?
Precipitation reactions, Acid-Base Reactions, Gas evolution Reactions
evidence of reactions
color change, formation of a solid in a previously clear liquid, formation of a gas (bubbles), Heat absorption and emission, light emission,
What is a precipitation reaction
reaction forms a solid, often a double displacement
What is an acid-base reaction
reaction where an acid and base neutralize one another to form water, often a double displacement
What is a gas evolution reaction
reaction that produces a product in a gaseous state, often a double displacement, bubbles are seen
what is an acid
a compound characterized by its ability to form H+ ions and sour taste
What is a base
a compound characterized by its ability to form OH- ions and bitter taste
What is the difference between a strong acid and a weak acid
Strong acids dissolve completely, weak acids do not dissolve completely
whats an example of a weak acid
Acetic acid
what is the Arrhenius definition of an acid
an acid that forms H+ in an aqueous solution
what is the Arrhenius definition of a base
a base that forms OH- in an aqueous solution
what is an example of a weak base
ammonia NH3
