1 / 8

Chemical Reactions, Mixtures and Solutions, Acids and Bases

Chemical Reactions, Mixtures and Solutions, Acids and Bases. Biology Chapter 6. Chemical Reactions. When bonds between atoms are formed or broken, causing a substance to combine and recombine as different molecules a chemical reaction occurs. A + B = AB AB = A + B. Chemical Reactions.

herman
Download Presentation

Chemical Reactions, Mixtures and Solutions, Acids and Bases

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. Chemical Reactions, Mixtures and Solutions, Acids and Bases Biology Chapter 6

  2. Chemical Reactions • When bonds between atoms are formed or broken, causing a substance to combine and recombine as different molecules a chemical reaction occurs. A + B = AB AB = A + B

  3. Chemical Reactions • Organisms have chemical reaction taking place over and over again in their bodies • Metabolism: all chemical reactions that occur within and organism • Breakdown and build important molecules for life

  4. Mixtures vs Solutions • Mixture: combination of substances in which individual components retain their own properties • Beach sand • Solution: a mixture in which one or more substances are distributed evenly in another substance • Sugar and water

  5. Mixture vs Solutions • In other words, a solution is when a solute is dissolved in a solvent and will not settle out of the solution • Solution terms: • Solutes: what is dissolved in the solvent • Solvents: what the solutes dissolve in

  6. Mixtures vs Solutions • The more solute dissolved in a solvent the greater the solutions concentration • In our bodies, concentrations of dissolved substances need to stay within a certain narrow range in order for us to survive. • Ex. Pancreas produces insulin that keeps the amount of sugar dissolved in your bloodstream within a critical range

  7. Acids and Bases • Chemical reactions can only happen when conditions are right • pH is the measure of how acidic or basic a solution is • 1-14 scale • Acidic • Basic

  8. Page 155 • Section Assessment • #1-6 • Due tomorrow

More Related