1 / 4

SCIENCE

Learn the essential rules and steps for balancing chemical equations in this comprehensive guide. Understand the principles behind Chapter 11 – Chemical Energy Section 3 and sharpen your skills for precision. Dive into Chapter 12 on Types of Reactions and explore the fascinating processes of Respiration and Photosynthesis in Chapters 17 and 18.

kling
Download Presentation

SCIENCE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SCIENCE

  2. Endothermic Exothermic Chapter 11 – Chemical Energy

  3. Section 3 – Balancing Equations We know from studying our law of conservation of mass, that atoms cannot be made or destroyed, therefore every chemical equation must be balanced. Rules for balancing equations: You can never change the little numbers; You must only balance the equation by placing big numbers in front; The number of atoms of both elements must be equal. How to balance an equation: • Draw a line under the equation using a ruler. Draw a vertical line down from the arrow. • Underneath the line, on the left hand side write out the elements present. • Count the number of atoms of each element in each compound. Right this below the compounds. • Check if it is balanced on the left hand side and right hand side of the equation. • If it is not balanced then you increase the number of atoms of each element by multiplying the number of molecules. • Readjust your number of atoms and see if the equation is now balanced. • Repeat the process until the equation is balanced. • Rewrite the final equation. Chapter 12 – Types of Reaction

  4. Chapter 17 and 18 – Respiration and Photosynthesis

More Related