Learning Targets and Goals
- 1. Can you explain the difference between atoms, elements, molecules, and compounds?
- 2. How do we write the chemical symbols for elements and compounds?
- 3. Can you differentiate between Reactants and Products in a chemical equation?
- 4. How will you set up and demonstrate a chemical reaction? Do you understand how the atoms rearranged to form a new substance in the reaction?
Today in Class:
- First Students completed their TCi worksheet- “Atoms in Chemical Reactions” that they started Monday. Many students needed to be reminded to circle (in red) atomic binds that would break and draw in (blue bonds) that will form. This worksheet was best completed as you were referring to the reading you completed last week Friday: TCi, Unit 3, Lesson 7, Sections Intro, 1-2-3.
2. Next – partners or groups of 3 – opened their laptop (to Google.SlideoftheWeek) and chose one of the experiments below
a. You then referred to one of the websites below and used the worksheet, “Can You Demonstrate a Chemical Reaction?”
- a. Hydrogen Peroxide & a Potato!
- b. Vinegar & Baking Soda & a Balloon Chemistry of Inflation
- c. Antacid Tablet & Water -surface area
- d. Corn Starch & Iodine
- e. Sun Sensitive Paper
- f. Chromatography & Coffee Filters
- g. Electrolysis of H2O with a Battery and Pencil
- h. Salt, Vinegar & (Tarnished) Pennies
b. Students demonstrated a chemical reaction and then answered the questions on Chemical Reaction WS. You could have taken a photo of results (to share tomorrow on a class Google.Slides).
c. If you needed a chemical formula for different elements or compounds that were your REACTANTS or PRODUCTS for the chemical reaction, you could:
*look on your “Atoms in Chemical Reactions” worksheet or SketchNotes for Molecules that you have completed – these may have the answers for the compounds and elements below. – Or the chemical symbols are listed below as well.
- Acetic Acid (Vinegar) CH3COOH
- Hydrogen Peroxide H2O2
- Baking Soda (sodium bicarbonate) NaHCO₃
- Rubbing alcohol C3H8O OR CH3CHOHCH3
- Table Salt NaCl
- Copper (element); copper oxide Cu; CuO
- Corn Starch C6H10O5
- Permanent Marker Ink (ethanol) C2H5OH OR C3H7OH (isopropanol)
- Iodine (liquid- povidone iodine) C6H9I2NO OR I (iodine – element)
- Antacid tablet NaHCO3
- Pop Rocks candy C12H22O11(aq)–> C12H22O11(s),
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Students cleaned up and completed the questions on the back of the Chemical Reactivity Experiments worksheet.