Chemistry - Semester 2 Exam Review
Questions And Answers 100% Pass.
Single Replacement - answerone element replaces another element in a compound
A+BC=B+AC
Double Replacement - answera chemical reaction where two elements in different compounds
trade places
AB + CD --- AC + BD
Combustion Rea...
Single Replacement - answer✔one element replaces another element in a compound
A+BC=B+AC
Double Replacement - answer✔a chemical reaction where two elements in different compounds
trade places
AB + CD --- AC + BD
Combustion Reaction - answer✔a chemical reaction that occurs when a substance reacts with
oxygen, releasing energy in the form of heat and light
Synthesis Reaction - answer✔A reaction in which two or more substances combine to form a
new compound
A+B=AB
Decomposition Reaction - answer✔A reaction in which a single compound breaks down to form
two or more simpler substances
AB = A + B
In a combustion reaction one of the reactants has to be.... - answer✔oxygen (O2)
(Solubility Rules) A double replacement reaction will always produce a... - answer✔precipitate,
water, or a gas
(Solubility Rules) a solid metal can never be product in a... - answer✔double replacement
reaction
Avogadro's number - answer✔number of representative particles in a mole, 6.02 X 10^23
Convert moles to particles - answer✔multiply by Avogadro's number
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