Crime Busters B

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Crime Busters B

Post by Benewcomb »

Welcome to the 2019 Season! Time to get started!

First question! (Please don’t use the hide bbc its not iPad friendly)
What plastics floats in corn oil?
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Re: Crime Busters B

Post by Galahad »

I’m pretty sure only PP floats in standard corn oil.
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Re: Crime Busters B

Post by Benewcomb »

Correct.
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Re: Crime Busters B

Post by amk578 »

I guess I'll resurrect this question marathon,

Hydrogen peroxide and water are very similar, how do you tell them apart?
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Re: Crime Busters B

Post by jimmy-bond »

amk578 wrote:I guess I'll resurrect this question marathon,

Hydrogen peroxide and water are very similar, how do you tell them apart?
You shake them a lot and H2O2 bubbles while water doesn't (assuming they're in some sort of separated containers).

This is because water and H2O2 are both colorless, have a near-neutral pH, and are odorless.

Also, you can objectively drink both, but for competition's sake, the first way is probably the easiest.
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Re: Crime Busters B

Post by amk578 »

jimmy-bond wrote:
amk578 wrote:I guess I'll resurrect this question marathon,

Hydrogen peroxide and water are very similar, how do you tell them apart?
You shake them a lot and H2O2 bubbles while water doesn't (assuming they're in some sort of separated containers).

This is because water and H2O2 are both colorless, have a near-neutral pH, and are odorless.

Also, you can objectively drink both, but for competition's sake, the first way is probably the easiest.
I'm gonna assume you're correct about shaking water and h2o2. But the way I know is you put each liquid in a well, place iodine in each well and stir, then a minute passes and h2o2 *should* bubble while water would be inert besides the color change.

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Re: Crime Busters B

Post by Galahad »

amk578 wrote:
jimmy-bond wrote:
amk578 wrote:I guess I'll resurrect this question marathon,

Hydrogen peroxide and water are very similar, how do you tell them apart?
You shake them a lot and H2O2 bubbles while water doesn't (assuming they're in some sort of separated containers).

This is because water and H2O2 are both colorless, have a near-neutral pH, and are odorless.

Also, you can objectively drink both, but for competition's sake, the first way is probably the easiest.
I'm gonna assume you're correct about shaking water and h2o2. But the way I know is you put each liquid in a well, place iodine in each well and stir, then a minute passes and h2o2 *should* bubble while water would be inert besides the color change.

Your turn!
Shaking them is the go-to way to identifying them, so I can confirm jimmy-bond's statement
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Re: Crime Busters B

Post by jimmy-bond »

1. What is the pH of ascorbic acid?

2. A plastic is burned and the flame is green. What is the chemical formula of the plastic?

3. What type of fingerprint has no deltas?
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Re: Crime Busters B

Post by amk578 »

jimmy-bond wrote:1. What is the pH of ascorbic acid?

2. A plastic is burned and the flame is green. What is the chemical formula of the plastic?

3. What type of fingerprint has no deltas?
1. 2

2. I think it's PVC so (C2H3Cl)n

3. I believe arches don't have deltas
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Re: Crime Busters B

Post by jimmy-bond »

amk578 wrote:1. 2

2. I think it's PVC so (C2H3Cl)n

3. I believe arches don't have deltas
All good. Your turn.
A dyslexic man walks into a bra.
Code, CL, 4&6, WQ
Code, DP, 4&6, WQ
Code(16), DD(40), FQ(39),4&6(36), WQ(27)
CriB(26), DP (11), FF(1), MM(14), P&P(6)
CriB(36), DD(35), FF(2), MM(20)
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