File name: How To Balance Chemical Equations Step By Step Pdf

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How To Balance Chemical Equations Step By Step Pdf

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Firstly, we balance the oxygen atoms by adding 2 parts (or molecules) of water. In step 2 we then have to balance the hydrogen atoms. 1. Na + Cl2 NaCl. 2. Ca + O2 CaO. 3. H2 + Cl2 HCl. Here are some basic steps that help when you balance chemical equations. 1. Leave any type of atoms that are present in their elemental state alone until the end. This is particularly true if . Balancing Equations Notes: Chemical equations must be balanced on both sides according to the Law of Conservation of Mass, which says that matter cannot be created or destroyed. . All chemical calculations to come must be done with a balanced equation. A balanced equation has equal numbers of each type of atom on each side of the equation. The Law of Conservation of Mass is the rationale for balancing a chemical equation. Balancing Chemical Equations Objectives: • to read chemical equations • to identify elements by their chemical symbol • to count atoms • to identify the coefficients and subscripts in a chemical equation. • to label the reactants and products of a chemical equation • to balance chemical equations. Balancing Chemical Equations A chemical reaction is a rearrangement of atoms. Both sides of the equation must have the same type of atoms and the same number of each type of atom due to conservation of mass. 1. Balance the following equations: NaOH (aq) + Cl 2 (aq) → NaOCl (aq) + NaCl (aq) + H 2 O (l) CaCN 2 (s) + H 2 O (l) → CaCO 3 (s.