Reactivity of Metals

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4 Terms

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metal + acid →

metal + acid → salt + hydrogen

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metal + water →

metal + water → metal hydroxides + hydrogen gas

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reactivity series

K>Na>Ca>Li>Mg>Al>C>Zn>Fe>Ni>Sn>Pb>H>Cu> Hg>Ag> Au>Pt

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explain endothermic reaction and exothermic

Endothermic reactions are chemical reactions that absorb heat from their surroundings, leading to a decrease in temperature of the surrounding environment. Examples include photosynthesis and the dissolution of ammonium nitrate in water. In contrast, exothermic reactions release heat, causing an increase in temperature of the surroundings; examples include combustion reactions such as burning wood or fossil fuels