Explain the different types of chemical equations: word, picture, and symbol equations, and provide an example of balancing the combustion of methane.

Here are the answers to the questions about chemical reactions and equations: Chemical Reactions: Chemical Equations to Represent Reactions (b) What is a chemical reaction? A reaction or chemical reaction is a chemical change which results in the formation of new substances*. (c) When a chemical equation is expressed in words, it is called a word equation*. (d) When an equation is expressed using pictures or even models, it is a picture equation*. (e) When symbols are used to represent chemical reaction, it is known as symbol equation*. Example: Methane Combustion Word equation (Equation in words): Methane + Oxygen → Carbon dioxide + Water Picture equation (Equation in pictures): 1 methane + 2 oxygen molecules → 1 carbon dioxide molecule + 2 water molecules Symbol equation (Equation in symbols): CH₄ + 2O₂ → CO₂ + 2H₂O Balanced chemical equation: CH₄ + 2O₂ → CO₂ + 2H₂O Answer the following questions: Example: Hydrogen Combustion Word equation (Equation in words): Hydrogen + Oxygen → Water Picture equation (Equation in pictures): 2 hydrogen molecules + 1 oxygen molecule → 2 water molecules Symbol equation (Equation in symbols): 2H₂ + O₂ → 2H₂O Balanced chemical equation: 2H₂ + O₂ → 2H₂O Questions: 1. In the diagram above, what type of equations are represented by A, B and C? A: Word equation* B: Picture equation* C: Symbol equation* 2. In equation B, how many oxygen atoms are shown on the left of the equation? There is one O₂ molecule, which contains 2* oxygen atoms. 3. How many carbon atoms (C) are on the right of the equation? (Referring to the methane combustion example) There is one CO₂ molecule, which contains 1* carbon atom. 4. Write a word equation for: 2H_2 + O_2 → 2H_2O Hydrogen + Oxygen → Water* Send me the next one 📸