EggsperimentCalcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal. An eggshell is made primarily from calcium carbonate, the chemical compound which also makes up the majority of sea shells, as well as chalk and limestone. The shell isn’t completely solid – it has thousands of tiny pores, around 9,000 on average, which allow gases to pass in and out. Periodic Table of ElementsEggshell nanostructureChemistry of eggshell and vinegarThe egg shell is composed of calcium carbonate (CaCO3). When calcium carbonate comes in contact with vinegar which contains acetic acid (CH3CO2H) a chemical reaction occurs. 2 CH3COOH + CaCO3 = H2CO3 + Ca(CH3COO)2 The carbonic acid breaks down to form carbon dioxide and water, H2CO3 = H2O + CO2 The shell is made up mostly of calcium carbonate.-- it contains calcium carbonate (94%), magnesium carbonate (1%), calcium phosphate (1%), and 4% organic matter-- vinegar which contains acetic acid will dissolve the shell. Salt CrystalsWe are conducting a class Eggsperiment
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Author: Jazmin GannonA place to grow Archives
January 2021
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