| A chemical reaction that releases heat energy to the surroundings. | Exothermic Reaction |
| What characterizes an exothermic reaction in terms of energy transfer? | An exothermic reaction releases heat energy to the surroundings. |
| The principle stating that the total amount of energy before a reaction is equal to the total amount of energy after the reaction. | Energy Conservation in Reactions |
| What does the principle of energy conservation state in the context of chemical reactions? | The total energy before a reaction is always the same as the total energy after the reaction, indicating that energy is conserved. |
| The consequence of exothermic reactions, where the temperature of the surroundings increases. | Temperature Increase in Exothermic Reactions |
| What happens to the temperature of the surroundings in exothermic reactions? | The temperature of the surroundings increases in exothermic reactions as they release heat energy. |
| Specific types of reactions that release heat energy to the surroundings, including combustion, neutralization, and displacement reactions. | Examples of Exothermic Reactions |
| Name some examples of reactions categorized as exothermic. | Examples include combustion (burning), neutralization reactions, and displacement reactions. |
| Instances where exothermic reactions are utilized in practical situations, such as hand warmers and self-heating cans. | Everyday Applications of Exothermic Reactions |
| How are exothermic reactions applied in everyday life, providing specific examples? | Exothermic reactions are utilized in everyday life, as seen in hand warmers and self-heating cans. |
| A chemical reaction that absorbs energy from the surroundings. | Endothermic Reaction |
| What defines an endothermic reaction in terms of energy transfer? | An endothermic reaction absorbs energy from the surroundings. |
| The consequence of endothermic reactions, where the temperature of the surroundings decreases. | Temperature Decrease in Endothermic Reactions |
| What happens to the temperature of the surroundings in endothermic reactions? | The temperature of the surroundings decreases in endothermic reactions as they absorb energy. |
| Specific reactions that absorb energy from the surroundings, including the reaction between citric acid and sodium hydrogencarbonate and thermal decomposition. | Examples of Endothermic Reactions |
| Provide examples of reactions classified as endothermic. | Examples include the reaction between citric acid and sodium hydrogencarbonate and thermal decomposition. |
| The process where a compound breaks down when heated, often exemplifying an endothermic reaction. | Thermal Decomposition |
| What is thermal decomposition, and how is it related to endothermic reactions? | Thermal decomposition is the breakdown of a compound when heated and is often an example of an endothermic reaction. |
| Instances where endothermic reactions find practical use in daily life, such as in cold packs for sports injuries. | Everyday Applications of Endothermic Reactions |
| How are endothermic reactions applied in everyday life, providing a specific example? | Some cold packs for sports injuries use endothermic reactions, demonstrating their practical application. |
| The process where salts, such as copper sulfate or ammonium chloride, dissolve in water, and the nature of this process can be either exothermic or endothermic. | Salts Dissolving in Water |
| Is the dissolution of salts in water always exothermic or endothermic, or does it depend on the specific salt? | The nature of the dissolution process depends on the specific salt; for example, copper sulfate dissolution is exothermic, while ammonium chloride dissolution is endothermic. |
| The process of salts dissolving in water, such as copper sulfate, where heat is released to the surroundings. | Exothermic Dissolution |
| What characterizes exothermic dissolution of salts in water? | Exothermic dissolution, like that of copper sulfate, releases heat to the surroundings. |
| The process of salts dissolving in water, such as ammonium chloride, where heat is absorbed from the surroundings. | Endothermic Dissolution |
| What characterizes endothermic dissolution of salts in water? | Endothermic dissolution, like that of ammonium chloride, absorbs heat from the surroundings. |
| Chemical reactions where two solutions react to form an insoluble solid (precipitate) and the nature of these reactions can be either exothermic or endothermic. | Precipitation Reactions |
| What defines precipitation reactions, and can they be both exothermic and endothermic? | Precipitation reactions involve the formation of an insoluble solid; their nature can be either exothermic or endothermic depending on the specific reaction. |
| An instance of a precipitation reaction, such as the reaction between silver nitrate and sodium chloride, where the process is exothermic. | Example of Exothermic Precipitation Reaction |
| Provide an example of a precipitation reaction that is exothermic. | The reaction between silver nitrate and sodium chloride, forming a silver chloride precipitate, is an example of an exothermic precipitation reaction. |
| A method to determine whether a reaction is exothermic or endothermic by measuring the temperature change during the reaction. | Experimental Determination of Reaction Nature |
| How can you experimentally determine if a reaction is exothermic or endothermic? | Measure the temperature change during the reaction; if it increases, it's exothermic, and if it decreases, it's endothermic. |
