Re: Crime Busters B
Posted: April 30th, 2019, 6:57 pm
I was looking for that it undergoes an endothermic reaction or heats up.
I was looking for that it undergoes an endothermic reaction or heats up.
think about what each method does chemically to the print
1. Iodine fuming first, because it's completely reversible and fast 2. Ninhydrin because it shouldn't be first or last 3. Silver nitrate last because it is destructive and will cause other methods to not work
Yep, your turnSapphire wrote:I don't even know what any of those are.
Okay, so I did some research and I'm going to say:1. Iodine fuming first, because it's completely reversible and fast 2. Ninhydrin because it shouldn't be first or last 3. Silver nitrate last because it is destructive and will cause other methods to not work
Sapphire wrote:1. What is the study of fingerprints called?
2. What powder would incriminate someone who has been in contact with chalk?
3. What powder would incriminate someone who has been in contact with salt and vinegar flavored chips?
1. dactyloscopy 2. calcium carbonate 3. sodium acetate
wec01 wrote:1) In paper chromatography, what is the stationary phase and what is the mobile phase?
2) How are Rfs measured?
3) What are two types of chromatography other than paper chromatography?
1. Paper is stationary and water is mobile 2. Distance traveled by solvent divided by distance traveled by spot 3. TLC (thin layer chromatography) and... umm... IDK?
Yep, for number 3 there's also gas chromatography and liquid chromatography Your turnSapphire wrote:wec01 wrote:1) In paper chromatography, what is the stationary phase and what is the mobile phase?
2) How are Rfs measured?
3) What are two types of chromatography other than paper chromatography?1. Paper is stationary and water is mobile 2. Distance traveled by solvent divided by distance traveled by spot 3. TLC (thin layer chromatography) and... umm... IDK?