It looks like you're comparing two different types of graphs or reactions, possibly an endothermic reaction (left-side) versus an exothermic reaction (right-side). Based on the statements you provided, here’s a breakdown:
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Left-side Graph (Endothermic Reactions):
- Any reaction that absorbs more energy from the surroundings to proceed: This is a characteristic of endothermic reactions, which require an input of energy (often in the form of heat) from the surroundings. An example of this can be the melting of ice, where heat is absorbed from the environment to facilitate the phase change from solid to liquid.
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Right-side Graph (Exothermic Reactions):
- Combustion reaction in a car as octane gas burns in the presence of oxygen: This is a classic example of an exothermic reaction where energy is released in the form of heat as the chemical bonds in the fuel (octane) and oxygen are broken and reformed, resulting in combustion products (such as CO2 and H2O).
For the other items mentioned: 3. Ice from the freezer's dispenser falls on your kitchen floor and melts into a little cold puddle of water: This relates to the endothermic process where ice absorbs heat from the floor (and the surrounding air) to change from solid to liquid, which explains the cold puddle.
- A system that "feels hot or warm" to the...: This statement likely refers to exothermic reactions, where energy is released, making the surroundings feel hot. For example, a chemical reaction such as combustion or even certain dissolution processes (like dissolving strong acids in water) can give off heat.
If you're looking to interpret a more specific graph or provide details about these reactions, feel free to share!