- Describe characteristics of different chemical reactions. (PS2.8A)
Matches: when you strike the match powdered glass and red phosphorus make up friction therefore ignites the match and what makes the match ignite is Antimony Trisulfide in the red part of the match.
Acid/base:Realizes Endothermic reaction meaning it gets cold, carbon dioxide and sodium bicarbonate
Iodine/starch: changes color
Indicator: color change
Dont talk about ooblek u can less you say it is not a chemical change…
1. Describe the chemical makeup of baking powder. (PS1.8B)
A: Backing soda: NaHCO3 and Cream of tartar: KC4H5O6
2. Describe the process you used to determine the unknown substance.(SI1.A)
We knew that
A: The unknown substance is backing soda. We already knew that backing soda and vinegar had a chemical reaction that fizzes a lot and when we tried mixing vinegar with the substance it did the same reaction so we now we know that it is backing soda
3. Describe the process you used to determine which two substances make up baking powder. (SI1.A)
A: We were testing out what iodine would do to the given chemicals and we saw that with backing powder the color changed (to a purple) and and It started to slightly fizz so when we tried mixing backing soda and cream of tartar and we got a slight fizz and light purple.
4. What are some important safety considerations for a Middle School Chemistry lab?(SI.1A)
A:Attire: long pants, lab coat, no necklaces, tie your hair if long
1. Describe the chemical makeup of baking powder. (PS1.8B)
A: Backing soda: NaHCO3 and Cream of tartar: KC4H5O6
2. Describe the process you used to determine the unknown substance.(SI1.A)
We knew that
A: The unknown substance is backing soda. We already knew that backing soda and vinegar had a chemical reaction that fizzes a lot and when we tried mixing vinegar with the substance it did the same reaction so we now we know that it is backing soda
3. Describe the process you used to determine which two substances make up baking powder. (SI1.A)
A: We were testing out what iodine would do to the given chemicals and we saw that with backing powder the color changed (to a purple) and and It started to slightly fizz so when we tried mixing backing soda and cream of tartar and we got a slight fizz and light purple.
4. What are some important safety considerations for a Middle School Chemistry lab?(SI.1A)
A:Attire: long pants, lab coat, no necklaces, tie your hair if long
2 .personal protective equipment: glasses, don't touch any thing, lab coat.
3. chemical safety: know the chemicals you are using.
4. safety equipment: fire extinguisher close by and again safety glasses.
5. lab behavior: clean up your mess, listen to instructions and no tasting.
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