Make models of CaCO3, CaO, and CO2 out gumdrops and toothpicks then write one to two paragraphs that describe your models and relate them to the law of conservation of mass Build a model of the reactant.
a) Use gumdrops and toothpicks to build a model of CaCO3.
b) Select one color of gumdrop for calcium, a second color for carbon, and a third color for
oxygen. Be sure to include a key of your chosen color scheme with your model.
c) Use the model below as your guide. The lines represent the bonds.