Chemical Rxns Test Corrections
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a Double Replacement Reaction?
Back
A chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: HCl + NaOH → NaCl + H2O.
2.
FLASHCARD QUESTION
Front
What is a Decomposition Reaction?
Back
A type of chemical reaction where one compound breaks down into two or more simpler products. Example: 2HI → H2 + I2.
3.
FLASHCARD QUESTION
Front
What are coefficients in a chemical equation?
Back
Numbers placed before compounds in a chemical equation to indicate the number of molecules or moles of each substance involved in the reaction.
4.
FLASHCARD QUESTION
Front
What is a Synthesis Reaction?
Back
A chemical reaction where two or more simple substances combine to form a more complex product. Example: 2 K + Br2 → 2 KBr.
5.
FLASHCARD QUESTION
Front
What is a Combustion Reaction?
Back
A type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: C8H18 + O2 → CO2 + H2O.
6.
FLASHCARD QUESTION
Front
What is the general form of a chemical equation?
Back
Reactants are written on the left side, products on the right, separated by an arrow (→) indicating the direction of the reaction.
7.
FLASHCARD QUESTION
Front
What is the purpose of balancing a chemical equation?
Back
To ensure that the number of atoms of each element is the same on both sides of the equation, following the Law of Conservation of Mass.
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