Forensics C

[CPScienceDude]

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

[Nerdforlife]

Ok its working now. Thanks for your help

[wec01]

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

[SilverBreeze]

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!

[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.

[SilverBreeze]

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+

[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.

1. CaCO3(s)+2HCl(aq)-->CO2(g)+H2O(l)+CaCl2(aq)
2. blowflies
3. C2H5+

Yep, your turn!

[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?

[jaspattack]

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

[SilverBreeze]

All correct, your turn!