Chemistry Fall Semester Exam Review - Unit 6

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy (heat) from its surroundings, resulting in a decrease in temperature.

Front

What are the products in a chemical equation?

Back

The products are found on the right-hand side of a chemical equation and are the new substances formed in the chemical reaction.

Front

What happens in an exothermic reaction?

Back

In an exothermic reaction, energy (heat) is released, causing the surroundings to feel hot.

Front

What is the result of the synthesis reaction between aluminum and chlorine?

Back

The result is aluminum chloride, represented as AlCl3.

Front

What happens in an endothermic reaction?

Back

In an endothermic reaction, energy (heat) is absorbed, causing the surroundings to feel cold.

Front

Define a reactant in a chemical reaction.

Back

A reactant is a substance that is consumed during a chemical reaction, found on the left-hand side of a chemical equation.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What is the difference between reactants and products?

Back

Reactants are the starting substances in a chemical reaction, while products are the new substances formed.

Front

What is the significance of the periodic table in predicting chemical reactions?

Back

The periodic table provides information about the elements, including their reactivity and the types of compounds they can form.

Front

What does it mean for a reaction to be spontaneous?

Back

A spontaneous reaction occurs without external influence, often releasing energy.