Chemistry
Use a model to describe that atoms are rearranged during a chemical reaction to form a new substances with new properties. Explain that the atoms are all present in the products and this the total number of atoms is conserved
Develop a model to describe that
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Atoms form molecules and compounds that range in size from two to thousands of atoms.
Carbon Dioxide (CO2)
Water(H2O)
Salt (NaCl)
atoms form molecules and compounds that range in size from two to thousands of atoms
Mixtures are composed of different proportions of pure substances of different substances
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Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction occurred
Balanced Chemical Equations... aka the The Law of Conservation of Mass
Examples of balanced equations
atoms are rearranged in a chemical reaction to form new substances
New substances will have New Properties