anonymous
  • anonymous
In chemistry class, Katy is doing a lab about chemical changes. Some of her recorded observations include: Mg metal – burned - bright light – produced white/gray powder. Zinc metal – dissolved in HCl. Sucrose – burned to black – distinct odor. Of the following choices, which best represents contrasting observations from Katy’s lab?
Biology
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Fe(s) + 2 HCl(aq) - - -> FeCl2(aq) + H2(g) The chloride crystallizes as FeCl2?4 H2O. Exposure to air gradually oxidizes the iron(II) to FeCl3 and Fe2O3. [ [ Oxidizing FeCl2 with Cl2 produces orange-yellow FeCl3, which has metal-nonmetal bonds with covalent character. Hope it helps but you have to study it yourself to get the answer =)
anonymous
  • anonymous
answer
anonymous
  • anonymous
It's most likely zinc

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anonymous
  • anonymous
Hopefully that helps
shrutipande9
  • shrutipande9
i also think its zinc. its sorta the odd man out.
anonymous
  • anonymous
which one? a. Sucrose burned to black, Zinc metal dissolved in HCl b. Mg metal burned with bright light, Zinc metal dissolved in HCl c. Mg metal burned and produced white/gray powder, Sucrose burned to black d. Mg metal burned and produced white/gray powder, Mg metal burned with bright light
anonymous
  • anonymous
I'm thinking b or a. Most likely B though?
anonymous
  • anonymous
thanks
anonymous
  • anonymous
Np if I'm wrong I'm sorry :(
anonymous
  • anonymous
was he wrong??^^
anonymous
  • anonymous
B was wrong
anonymous
  • anonymous
a is wrong too
anonymous
  • anonymous
Then Whats The Answer ?
anonymous
  • anonymous
hey guyes i need an answer plz
anonymous
  • anonymous
Mg metal burned and produced white/gray powder, Sucrose burned to black- so its C

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