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The chemical equation above represents the reaction process between chromium oxide (Cr2O3) and strontium (Sr) to form chromium strontium oxide (CrSrO3). According to the equation, 2 moles of Cr2O3 react with 3 moles of Sr to produce 4 moles of CrSrO3.
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Reaction conditions: For the reaction to occur, Cr2O3 and Sr need to be mixed at high temperatures.
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Reaction process: When the two reactants Cr2O3 and Sr are mixed at high temperature, the chromium atoms in chromium oxide will combine with strontium atoms to form chromium strontium oxide.
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Phenomenon: When the reaction occurs, the color change of the mixture can be observed, forming a new solid substance which is chromium strontium oxide.