Forensics C

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SilverBreeze
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Forensics C

Post by SilverBreeze »

Let's start! 
Remember to give your answers using either
[spoiler]answer here[/spoiler]
or
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Ask a question, wait for someone else to respond, tell them if their answer is correct (spoilered please), and let them ask the next set! Refer to the stickied thread https://scioly.org/forums/viewtopic.php?f=193&t=5981 for more clarifications!



1. What is the balanced reaction between calcium carbonate and hydrochloric acid?
2. What color does KCl burn?
3. What general type of fingerprint (loop, whorl, arch) is a double loop fingerprint?
Last edited by SilverBreeze on Mon Sep 07, 2020 7:53 pm, edited 6 times in total.
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Re: Forensics C

Post by lilacs10 »

1. CaCO3 (s) + 2HCl (aq) --> CO2 + CaCl2 (aq) + H2O (l) 2. Light purple/ lavender 3. Whorl?
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Re: Forensics C

Post by SilverBreeze »

lilacs10 wrote: ↑Thu Sep 10, 2020 5:34 pm 1. CaCO3 (s) + 2HCl (aq) --> CO2 + CaCl2 (aq) + H2O (l) 2. Light purple/ lavender 3. Whorl?
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Re: Forensics C

Post by SilverBreeze »

Revive time...

1. If crack A stops at crack B, which crack was first?
2. What color does sucrose turn in Benedict's solution?
3. Oh no! Your flame loop burns yellow no matter which compound you test. What piece of equipment should you use?
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Re: Forensics C

Post by Creationist127 »

SilverBreeze wrote: ↑Sat Sep 26, 2020 1:13 pm Revive time...

1. If crack A stops at crack B, which crack was first?
2. What color does sucrose turn in Benedict's solution?
3. Oh no! Your flame loop burns yellow no matter which compound you test. What piece of equipment should you use? 
Crack B
Pretty sure sucrose doesn't react with Benedict's
A piece of cobalt-blue glass?
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Re: Forensics C

Post by SilverBreeze »

Creationist127 wrote: ↑Fri Oct 02, 2020 9:44 am
SilverBreeze wrote: ↑Sat Sep 26, 2020 1:13 pm Revive time...

1. If crack A stops at crack B, which crack was first?
2. What color does sucrose turn in Benedict's solution?
3. Oh no! Your flame loop burns yellow no matter which compound you test. What piece of equipment should you use? 
Crack B
Pretty sure sucrose doesn't react with Benedict's
A piece of cobalt-blue glass?
All correct!
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Re: Forensics C

Post by ThomasL »

I'll start again:)

1. How many deltas are in a loop?
2. What powders are identified with a) fertilizer (I believe there are multiple--name at least one), b) eye wash, c) salt substitute?
3. In mass spectrometry, what are the relative abundances of the M+1 and M+2 (Cl and Br) peaks, if they exist?
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Re: Forensics C

Post by ZachMUHS »

1. What is snell's law and what is the common refractive index of air?
2. What is the term for the study of pollen and dusts?
3. What type of finger-printing is best on paper?
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Re: Forensics C

Post by ThomasL » 

1. Snell's law relates angles of incidence and refraction through the formula n1*sin(theta1) = n2*sin(theta2), where n are the refractive indices of the two media. Typical refractive index of air is close to 1.
2. Palynology
3. Ninhydrin
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Re: Forensics C

Post by ZachMUHS »

ThomasL wrote: ↑Fri Jan 15, 2021 10:07 am 
1. Snell's law relates angles of incidence and refraction through the formula n1*sin(theta1) = n2*sin(theta2), where n are the refractive indices of the two media. Typical refractive index of air is close to 1.
2. Palynology
3. Ninhydrin
Correct!
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