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Mar 05, 2017 · Balancing Chemical Equations Activity – one of my long time favorite activities. Students will learn how to read formulas, count atoms, create and read chemical equations, and balance chemical equations using a hands on activity with color coded formulas cards. Lesson Resources: Create one set of materials for each pair of students.
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Key Concepts LOUISIANA STANDARDS LA.PS.5 Write and name formulas for ionic and covalent compounds. (PS-H-A2) LA.PS.9 Draw accurate valence electron configurations and Lewis dot structures for selected molecules, ionic and covalent compounds, and chemical equations. (PS-H-B1) LA.PS.13 Identify the number of bonds an atom can form given the
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6. Why is mass conserved in a chemical reaction? 7. What is true about the atoms at the start of a chemical reaction compared to the atoms at the end of the reaction? Key Concept What happens to the total mass in a chemical reaction? Use a w to the right of the di (C02) Reactants written to the left of the The plus sign two more o products. The ...
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Counting Atoms and Molecules in Chemical Formulas . Chemical equations are combinations of letters and numbers. Scientists must understand the meaning behind these numbers and symbols to conduct experiments. Remember that a chemical symbol is a shorthand way of writing an element's name. Symbols have
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The millions of different chemical compounds that make up everything on Earth are composed of 118 elements that bond together in different ways. This module explores two common types of chemical bonds: covalent and ionic. The module presents chemical bonding on a sliding scale from pure covalent to pure ionic, depending on differences in the electronegativity of the bonding atoms. Highlights ...
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Prove that the law of conservation of matter holds true by balancing the chemical equations for the processes of photosynthesis and cellular respiration and counting the atoms present on the reactant sides and the product sides of the equations. Engineer a better teaching model than existing molecular models to better understand the processes.