Hi Chemtalk,
I need to think of some thing for an Outcome test. That is not a metal, and will not react with HCL.
In the test the students have three test tubes, one marked A containing Zinc metal, and other marked B with a small piece of Mg Ribbon. Then one marked C with something not metal???
I had thought of a river pebble, sprayed with silver paint, but perhaps some one can think of some thing else.
Hope you can help
Lookes like Metal but can not be??
- Labbie
- Posts: 3247
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Lookes like Metal but can not be??
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: Lookes like Metal but can not be??
metallic looking plastic button??
Re: Lookes like Metal but can not be??
Silver cachous (for cake decorating)?
Liz
Life keeps getting better every day!
Life keeps getting better every day!
Re: Lookes like Metal but can not be??
what a about a silver birthday candle?
- Labbie
- Posts: 3247
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Lookes like Metal but can not be??
What great ideas. Thank you so much, like the cake balls. Sounds just right.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: Lookes like Metal but can not be??
Strip cut from a plastic unbreakable mirror.
Bob (:-})>
N.W. Regional Technician. W.A.
Nothing is certain -- only probable or improbable.
N.W. Regional Technician. W.A.
Nothing is certain -- only probable or improbable.
- Ian
- Posts: 575
- Joined: 16 Oct 2006, 10:00
- Job Title: Lab Assistant
- School: Macarthur Anglican School
- Suburb: Cobbitty
- State/Location: NSW
Re: Lookes like Metal but can not be??
Don't let the cake balls get wet, or the silver will wash off, leaving a white ball.
What about galena or sphalerite minerals or pyrite. They might react with acid, but will fail the mallerability and ductility tests. Not sure about conductivity, but I would be suprised if they conducted electricity. Pure silicone is a nice one, but harder to get hold of. Our Geology teacher has his own personal sample which he brings in on request.
Ian
What about galena or sphalerite minerals or pyrite. They might react with acid, but will fail the mallerability and ductility tests. Not sure about conductivity, but I would be suprised if they conducted electricity. Pure silicone is a nice one, but harder to get hold of. Our Geology teacher has his own personal sample which he brings in on request.
Ian
- Labbie
- Posts: 3247
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Lookes like Metal but can not be??
Thank you for all your help, in the end we spray river pebbles silver, so the students can not see the difference, between them, used river pebbles silver, zinc, and mg ribbon.
Thank you all so much
Thank you all so much
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: Looks like Metal but can not be??
Hi All,
Silicon (Family of Metalloids in the Periodic Table)..... Metallic looking but non reactive with HCl...
Cheers,
Robb..
Silicon (Family of Metalloids in the Periodic Table)..... Metallic looking but non reactive with HCl...
Cheers,
Robb..
Last edited by Robb on 22 Sep 2007, 20:37, edited 1 time in total.
Reason: Title Correction
Reason: Title Correction
Dr Robert Crosdale. MRACI. NSS. NSSA. NASA.
Ph.D (Chem), Post Grad Ph.D (Physics), M.Ed, B.Sc (Hons), Dip. Appl. Sc. (Chem)
Lake Munmorah High School.
University of New England.
University of New South Wales.
University of Newcastle.
To understand the Universe from our perspective, we need to look towards our own backyard first for answers.
** AD ASTRA PER ASPERA - SEMPER EXPLORO **
Ph.D (Chem), Post Grad Ph.D (Physics), M.Ed, B.Sc (Hons), Dip. Appl. Sc. (Chem)
Lake Munmorah High School.
University of New England.
University of New South Wales.
University of Newcastle.
To understand the Universe from our perspective, we need to look towards our own backyard first for answers.
** AD ASTRA PER ASPERA - SEMPER EXPLORO **
- Labbie
- Posts: 3247
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Lookes like Metal but can not be??
Great idea Rob, thanks we will try that next time.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired