1 / 16

Grab binders, handouts & returned work & begin the Do Now

Grab binders, handouts & returned work & begin the Do Now. 4/30 Do Now Silently read the article titled “Biodegradable Definition” , and answer the following 3 questions as you read… Define biodegradable in your own words What are pitfalls of biodegradable products?

skyler-lane
Download Presentation

Grab binders, handouts & returned work & begin the Do Now

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. Grab binders, handouts & returned work & begin the Do Now 4/30 Do Now • Silently read the article titled “Biodegradable Definition”, and answer the following 3 questions as you read… • Definebiodegradable in your own words • What are pitfalls of biodegradable products? • What are some examples of a biodegradable products you use in your daily lives?

  2. Mandatory Office Hours P3 Justin William Delante Bradley Monica Monique Devonte G4 Doenika Tayia Neddji Roberto Diamond Perla David La’Nesha Arturo Milton Terrae G5 Adalynn Arkita Angel F Joey Alyssia Raven Lizabel Cesar P1 David Nicholas Marcus Michael Ruben Dajon Antwan

  3. Reaction Equation Recap: Phases 2H2O2(aq)  2H2O(l) + O2(g) Reactants Products • 1 reactant, 2 products • Chemical rxn NOT physical rxn

  4. What types of chemical reactions are there?

  5. Decomposition • Description: a compound breaks down to simpler products • General Equation: AB  A + B • Example: 2NaCl  2Na + Cl2 • Question: More products than reactants?

  6. Synthesis • Description: 2 or more simpler reactants join to form a compound • General Equation: A + B  AB • Example: 2Na + Cl2 2NaCl Question: More reactants than products?

  7. Single Exchange • Description: a single atom replaces another atom in a compound • General Equation: A + BC  AC + B • Example: 2Na + CuCl 2NaCl + Cu Question: Do we see a single element on both sides?

  8. Double Exchange • Description: atoms in compounds switch partners and end with 2 new compounds • General Equation: AB + CD  AD + BC • Example: NaCl + LiBr NaBr + LiCl Question: 2 compounds of reactants and as products?

  9. Combustion • Description: a CH compound burns in O2 to form CO2 and H2O (water) • Example: C2H4 + 3O2 2CO2 + 2H2O Question: are CO2 and H2O products?

  10. Law of Conservation of Mass Key Point 1: - In a chemical reaction, the mass of the products equals the mass of the reactants

  11. Lab 2: Biodegradable Soap Question: Are natural, homemade soaps better or worse for our skin compared to generically mass-produced soaps? Directions: 20 min… - determine the WHAT part of your purpose - Read the lab background and complete the hypothesis and Pre-lab questions

  12. Lab 2: Biodegradable Soap Directions: 40 min… - Complete the Lab - Clean up your lab bench - Begin your written lab report & complete class work

  13. Counting Atoms in Compounds Step 1: Identify each element in the compound Step 2: Distribute your subscripts Step 3: Distribute your coefficients across all elements a. 4PO4 b. 6C3H8O2 c. (CH4) 2N2

  14. Counting Atoms Guided Practice • How many atoms of each element are in the following molecules? 1. H2SO4 2. CaOH2 3. NaCl 4. (NH3)3PO4 5. 3H2O

  15. Answers • 1. 2 hydrogen, 1 sulfur, 4 oxygen • 2. 1 calcium, 1 oxygen, 2 hydrogen • 3. 1 sodium, 1 chlorine • 4. 3 nitrogen, 9 hydrogen, 1 phosphorus, 4 oxygen • 5. 6 hydrogen, 3 oxygen

  16. Exit Ticket 3 Directions: You have 5 minutes to complete the Exit Ticket to the best of your ability. You MAY NOT use notes, but you may use a Periodic Table. When finished submit to the class bucket and put up your binder.

More Related