Types of Chemical Reactions
Flashcard
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Barbara White
FREE Resource
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10 questions
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1.
FLASHCARD QUESTION
Front
Combination Reaction Noun
[kom-bi-nay-shun ree-ak-shun]
Back
Combination Reaction
A type of chemical reaction where two or more simple substances combine to form a single, more complex product.
Example: This diagram shows two simpler substances, hydrogen (H₂) and oxygen (O₂), combining to form a single, more complex product, water (H₂O).
2.
FLASHCARD QUESTION
Front
Decomposition Reaction Noun
[dee-kom-po-zish-un ree-ak-shun]
Back
Decomposition Reaction
A type of chemical reaction where a single compound breaks down into two or more simpler substances.
Example: The large starch molecule (a polysaccharide) is broken down by digestion into many smaller, simpler glucose molecules (monosaccharides), illustrating a decomposition reaction.
3.
FLASHCARD QUESTION
Front
Single Replacement Reaction Noun
[sing-gul ree-plays-ment ree-ak-shun]
Back
Single Replacement Reaction
A chemical reaction where one element is substituted for another element in a compound, creating a new compound.
Example: This diagram shows element 'A' taking the place of element 'B' in the compound 'BC', forming a new compound 'AC' and leaving 'B' by itself.
4.
FLASHCARD QUESTION
Front
Double Replacement Reaction Noun
[dub-ul ree-plays-ment ree-ak-shun]
Back
Double Replacement Reaction
A reaction where two compounds' positive and negative ions switch places, forming two entirely new compounds.
Example: When two liquid solutions are mixed, their ions switch partners to form a new liquid (NaCl) and a solid precipitate (CaSO₄).
5.
FLASHCARD QUESTION
Front
Combustion Reaction Noun
[kum-bus-chun ree-ak-shun]
Back
Combustion Reaction
A rapid reaction between a substance and an oxidant, usually oxygen, that produces heat and light.
Example: This diagram shows a campfire, where wood (a hydrocarbon fuel) reacts with oxygen from the air to produce carbon dioxide, water, and energy (heat and light).
6.
FLASHCARD QUESTION
Front
Reactant Noun
[ree-ak-tant]
Back
Reactant
A substance that participates in and undergoes change during a chemical reaction, found on the left side of an equation.
Example: In a chemical reaction, reactants like methane and oxygen are the starting substances that combine and change to form new substances called products.
7.
FLASHCARD QUESTION
Front
Product Noun
[prod-ukt]
Back
Product
A substance that is formed as the result of a chemical reaction, found on the right side of an equation.
Example: In a chemical reaction, starting materials called reactants rearrange to form new substances on the right side, which are called the products.
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