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Re: Forensics C
Posted: January 5th, 2020, 11:48 am
by CPScienceDude
Nerdforlife wrote: ↑January 5th, 2020, 11:46 am
Ok, this might be really dumb but i am not able to open the "click to show hidden text" tab. Clicking on it doesnt work. How do you open it? And also where can I find practice tests for forensics?
Go to your board settings and click new board (I think that what it’s called). You can find a lot of practice tests in the Test Exchange.
EDIT: go to user control panel, board preferences then chose scioly under board style
Re: Forensics C
Posted: January 5th, 2020, 12:06 pm
by Nerdforlife
Ok its working now. Thanks for your help
Re: Forensics C
Posted: January 18th, 2020, 7:40 pm
by wec01
SilverBreeze wrote: ↑December 20th, 2019, 1:42 pm
Since nothing's happening, might as well...
1. Which powders precipitate with NaOH?
2. A piece of glass disappears in a solution with refractive index 1.53. What is the glass' refractive index?
3. What is a base peak in mass spectrometry?
Answers:
1. MgSO4 and Ca(NO3)2
2. 1.53
3. The highest peak in the spectrum
Re: Forensics C
Posted: January 18th, 2020, 7:53 pm
by SilverBreeze
wec01 wrote: ↑January 18th, 2020, 7:40 pm
SilverBreeze wrote: ↑December 20th, 2019, 1:42 pm
Since nothing's happening, might as well...
1. Which powders precipitate with NaOH?
2. A piece of glass disappears in a solution with refractive index 1.53. What is the glass' refractive index?
3. What is a base peak in mass spectrometry?
Answers:
1. MgSO4 and Ca(NO3)2
2. 1.53
3. The highest peak in the spectrum
All correct! Your turn!
Re: Forensics C
Posted: January 19th, 2020, 8:15 pm
by wec01
1. Write the reaction between calcium carbonate and muriatic acid.
2. What are the first insects to arrive on a dead body?
3. You are given the mass spectra of pentane. What fragment does the peak at m/z=29 represent.
Re: Forensics C
Posted: January 20th, 2020, 12:32 am
by SilverBreeze
wec01 wrote: ↑January 19th, 2020, 8:15 pm
1. Write the reaction between calcium carbonate and muriatic acid.
2. What are the first insects to arrive on a dead body?
3. You are given the mass spectra of pentane. What fragment does the peak at m/z=29 represent.
1. CaCO3(s)+2HCl(aq)-->CO2(g)+H2O(l)+CaCl2(aq)
2. blowflies
3. C2H5+
Re: Forensics C
Posted: January 21st, 2020, 5:19 am
by wec01
SilverBreeze wrote: ↑January 20th, 2020, 12:32 am
wec01 wrote: ↑January 19th, 2020, 8:15 pm
1. Write the reaction between calcium carbonate and muriatic acid.
2. What are the first insects to arrive on a dead body?
3. You are given the mass spectra of pentane. What fragment does the peak at m/z=29 represent.
1. CaCO3(s)+2HCl(aq)-->CO2(g)+H2O(l)+CaCl2(aq)
2. blowflies
3. C2H5+
Yep, your turn!
Re: Forensics C
Posted: January 21st, 2020, 10:38 pm
by SilverBreeze
1. Name the four stages of decay.
2. Gel electrophoresis is used in forensics for ___________.
3. What element has a tendency to contaminate flame tests?
Re: Forensics C
Posted: January 24th, 2020, 1:39 pm
by jaspattack
SilverBreeze wrote: ↑January 21st, 2020, 10:38 pm
1. Name the four stages of decay.
2. Gel electrophoresis is used in forensics for ___________.
3. What element has a tendency to contaminate flame tests?
1. Autolysis, bloat, active decay and skeletonization
2. DNA analysis/fingerprinting
3. Sodium
Re: Forensics C
Posted: January 25th, 2020, 2:25 pm
by SilverBreeze
All correct, your turn!