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Reactivity of Metals (Reactivity (Exothermic Reaction (These are reactions…
Reactivity of Metals
Reactivity 
Noble Gases have no reactivity, this makes them useful for storing highly reactive metals such as the alkali metals
Rust (Iron oxide) is created for iron, moisture, and oxygen
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Exothermic Reaction
These are reactions that transfer energy to the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. The temperature increase can be detected using a thermometer.
Endothermic Reaction
These are reactions that take in energy from the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to get colder. The temperature decrease can also be detected using a thermometer.
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