physical or chemical change n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
PHYSICAL OR CHEMICAL CHANGE? PowerPoint Presentation
Download Presentation
PHYSICAL OR CHEMICAL CHANGE?

Loading in 2 Seconds...

play fullscreen
1 / 6

PHYSICAL OR CHEMICAL CHANGE? - PowerPoint PPT Presentation


  • 68 Views
  • Uploaded on

PHYSICAL OR CHEMICAL CHANGE?. Aluminum foil is cut in half. Milk goes sour. Clay is molded into a new shape. Jewelry tarnishes. Water evaporates from the surface of the ocean. Rust forms on a nail left outside. Rubbing alcohol evaporates on your hand. Hydrogen peroxide bubbles in a cut

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'PHYSICAL OR CHEMICAL CHANGE?' - pahana


Download 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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
physical or chemical change
PHYSICAL OR CHEMICAL CHANGE?
  • Aluminum foil is cut in half.
  • Milk goes sour.
  • Clay is molded into a new shape.
  • Jewelry tarnishes.
  • Water evaporates from the surface of the ocean.
  • Rust forms on a nail left outside.
  • Rubbing alcohol evaporates on your hand.
  • Hydrogen peroxide bubbles in a cut
  • Your body digests food.
relative age of ms t s lunch
Relative Age of Ms. T’s lunch
  • Read the following story carefully. Then determine the correct order for the sentences. Be aware that the order has been mixed up!
  • I got out bread, peanut butter, and jelly.
  • I ate the sandwich.
  • I put the two pieces of bread together.
  • I spread a layer of jelly on another piece of bread.
  • I was hungry.
  • I spread a layer of peanut butter on a piece bread.
are you reactive
Are You Reactive
  • Take notes…even if you’re not the recorder!
  • Some of the solutions are corrosive (cause severe burns)
  • Goggles on at all times
  • DO NOT CROSS CONTAMINATE YOUR SAMPLES (Do not use the pipettes to stir)
  • Dry temperature probes, stirring rods between reactions
experiment 1 mg and compounds
Experiment 1: Mg and compounds
  • What do we know about Mg? Metal or Nonmetal?
  • How many valence electrons?
  • What group is it in? How reactive is it likely to be?
  • Recording initial and final temperature
experiment 2 dissolving ammonium chloride in solutions
Experiment 2: Dissolving Ammonium Chloride in solutions
  • What type of reaction is this likely to be?
  • Recording initial and final temperature
experiment 3 reacting 2 solutions together
Experiment 3: Reacting 2 solutions together
  • What type of reaction is this likely to be?
  • Record initial and final temperature
  • As temperature changes how is energy flowing to the thermometer?
  • If energy is release to the surroundings will you see an increase or decrease in temperature?
  • If the reaction needs energy from the surroundings will you see an increase or decrease in temperature?