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Questions and Answers
What are the substances that go into a chemical reaction called?
What are the substances that go into a chemical reaction called?
- Products
- Catalysts
- Reactants (correct)
- Intermediates
Which type of reaction may absorb heat energy?
Which type of reaction may absorb heat energy?
- Combustion reaction
- Endothermic reaction (correct)
- Oxidation reaction
- Exothermic reaction
What is a chemical change that changes the chemical identity of a substance called?
What is a chemical change that changes the chemical identity of a substance called?
- Chemical reaction (correct)
- Physical change
- Catalytic conversion
- Chemical equilibrium
What type of reaction involves an overall energy change and rearrangement of atoms/molecules?
What type of reaction involves an overall energy change and rearrangement of atoms/molecules?
Where are the products of a chemical reaction found in a chemical reaction formula?
Where are the products of a chemical reaction found in a chemical reaction formula?
Which type of change includes rusting as an example?
Which type of change includes rusting as an example?
What occurs when a substance undergoes a chemical change?
What occurs when a substance undergoes a chemical change?
What type of reaction involves the combining of two or more elements and/or substances to create one new substance?
What type of reaction involves the combining of two or more elements and/or substances to create one new substance?
In which type of reaction does a single substance chemically break down into two or more components?
In which type of reaction does a single substance chemically break down into two or more components?
What type of reaction involves a single element replacing one of the ions in an ionic compound?
What type of reaction involves a single element replacing one of the ions in an ionic compound?
In which type of reaction do two ionic compounds swap ions?
In which type of reaction do two ionic compounds swap ions?
What is required for a combustion reaction to occur?
What is required for a combustion reaction to occur?
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Study Notes
Chemical Reactions
- Substances that participate in a chemical reaction are called reactants.
Types of Reactions
- Endothermic reactions absorb heat energy.
- A chemical change that changes the chemical identity of a substance is called a chemical reaction.
Characteristics of Chemical Reactions
- Chemical reactions involve an overall energy change and rearrangement of atoms/molecules.
Chemical Reaction Formula
- Products of a chemical reaction are found on the right side of a chemical equation.
Types of Changes
- Rusting is an example of a chemical change.
Chemical Changes
- When a substance undergoes a chemical change, its chemical identity is altered.
Synthesis Reactions
- Synthesis reactions involve the combining of two or more elements and/or substances to create one new substance.
Decomposition Reactions
- Decomposition reactions involve a single substance chemically breaking down into two or more components.
Single Displacement Reactions
- Single displacement reactions involve a single element replacing one of the ions in an ionic compound.
Double Displacement Reactions
- Double displacement reactions occur when two ionic compounds swap ions.
Combustion Reactions
- Combustion reactions require oxygen to occur.
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