
Concept explainers
Interpretation:
From the given options, the characteristics of heat energy production has to be chosen.
Concept Introduction:
Heat Energy:
Heat is the transfer or flow due to the difference in temperature between two objects or it is the transfer of energy from one system to another system. Heat energy arises due to the movements of ions, molecules in solids, liquids and gases.
Exothermic and Endothermic
The chemical reaction in which heat energy is released known as exothermic reaction. The chemical reaction in which heat energy is absorbed known as endothermic reaction. The
Examples for exothermic reaction:
- Making ice cubes.
- Formation of snow in clouds.
- Condensation of rain from water vapour.
- Rusting iron.
- Burning sugar.
Examples for endothermic reactions:
- Melting ice cubes.
- Evaporation of water.
- Producing sugar from photosynthesis.

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Chapter 9 Solutions
General, Organic, and Biological Chemistry
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- Can you help me understand the CBC method on metal bridging by looking at this problem?arrow_forwardA partir de Aluminio y Co(NO3)2ꞏ6H2O, indicar las reacciones a realizar para obtener Azul de Thenard (Al2CoO4).arrow_forwardTo obtain Thenard Blue (Al2CoO4), the following reaction is correct (performed in an oven):Al(OH)3 + Co(OH)2 → Al2CoO4 + 4 H2Oarrow_forward
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