Chemical Reactions Quiz

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Questions and Answers

What type of reaction is represented by the formation of hydrogen gas?

Gas-evolution reaction (correct)
Color change reaction
Exothermic reaction
Endothermic reaction

Which type of reaction is characterized by the formation of a precipitate?

Endothermic reaction
Exothermic reaction (correct)
Gas-evolution reaction
Color change reaction

What is the term for a chemical change that is often accompanied by external indications or characteristics?

Endothermic reaction
Color change reaction
Exothermic reaction
Asterial traction (correct)

What is the term for a chemical reaction that proceeds with the evolution of heat energy?

<p>Exothermic reaction (C)</p> Signup and view all the answers

What type of reaction proceeds with the absorption of heat energy?

<p>Endothermic reaction (A)</p> Signup and view all the answers

Study Notes

Types of Chemical Reactions

The formation of hydrogen gas represents a chemical decomposition reaction.
The formation of a precipitate characterizes a precipitation reaction.
A chemical change that is often accompanied by external indications or characteristics is called a visible reaction.
A chemical reaction that proceeds with the evolution of heat energy is called an exothermic reaction.
A chemical reaction that proceeds with the absorption of heat energy is called an endothermic reaction.

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Description

Test your knowledge of chemical reactions with this quiz on the indications and characteristics of chemical changes. Identify external indications such as color changes and gas evolution, and understand the transformation of matter in chemical reactions.