15 Questions
Which statement best describes what happens during a chemical reaction?
Atoms are rearranged to form products different from the original reactants.
What is the role of reactants in a chemical reaction?
They go into the chemical reaction and are typically found to the left of the arrow.
What is an exothermic reaction?
A reaction where heat energy is released.
Which of the following is NOT an example of a chemical change?
Mixing sugar with water
What is the purpose of indicators in chemistry?
To determine if a chemical change or reaction has occurred
During a chemical reaction, what happens to the overall energy?
Energy remains constant.
What are products in a chemical reaction?
Substances found to the right of the arrow in a chemical formula.
In a double-replacement reaction, what do two ionic compounds swap?
Ions
Which type of reaction involves the combining of two or more elements and/or substances to create one new substance?
Combination reaction
What is the key characteristic of a decomposition reaction?
Chemical breakdown into two or more components
Which type of reaction involves a hydrocarbon reacting with oxygen to produce carbon dioxide and water?
Combustion reaction
What is the product when a combination reaction occurs between magnesium metal and oxygen gas?
Magnesium oxide powder
In a single-replacement reaction, a positively charged cation can only be replaced by what type of atom?
Atom that can act as a cation
What characterizes a combustion reaction?
Formation of a gas
Which type of reaction involves one thing breaking down into two or more components?
Decomposition reaction
Learn about the five types of chemical reactions and how matter is rearranged during a chemical reaction without being created or destroyed. Understand the role of reactants and the concept of exothermic reactions. Explore the different ways in which atoms are rearranged to form new products.
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