Crime Busters B
- azboy1910
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Crime Busters B
Let's get this marathon started!
1. Which powder is the only one included in this event with a pH of 2?
2. How might you distinguish cornstarch from flour?
3. Which metals vigorously react with HCL?
4. Is ammonia basic, neutral, or acidic?
1. Which powder is the only one included in this event with a pH of 2?
2. How might you distinguish cornstarch from flour?
3. Which metals vigorously react with HCL?
4. Is ammonia basic, neutral, or acidic?
- azboy1910
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Re: Crime Busters B
It's been like 4 months, can someone please answer?
Last edited by azboy1910 on January 13th, 2021, 6:20 pm, edited 1 time in total.
- SilverBreeze
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Re: Crime Busters B
Some more serious answers: (remember to use the spoiler!)
1. vit C
2. cornstarch is fine and white and flour is coarse and a little off-white
3. Zinc, Magnesium
4. basic
And a reminder, please don't troll/give wrong answers on purpose! It can confuse new competitors who can't tell you're trolling. (for example, do NOT taste the powders)
Last edited by SilverBreeze on January 14th, 2021, 8:30 am, edited 2 times in total.
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- gz839918 (January 14th, 2021, 8:24 am)
Troy SciOly 2019 - 2023
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
- ZachMUHS
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Re: Crime Busters B
Sorry, I forgot about the spoilers. I'll take my post down.SilverBreeze wrote: ↑January 14th, 2021, 8:20 amSome more serious answers: (remember to use the spoiler!)
1. vit C
2. cornstarch is fine and white and flour is coarse and a little off-white
3. Zinc, Magnesium
4. basic
And a reminder, please don't troll/give wrong answers on purpose! I can confuse new competitors who can't tell you're trolling. (for example, do NOT taste the powders)
- SilverBreeze
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Re: Crime Busters B
I'll put up the next set of questions since I'm going to forget:
1. What are the full names of the four DNA bases?
2. Paper-pen chromatography separates ink using what property of the ink molecules?
3. Name one way cat hair differs from dog hair.
1. What are the full names of the four DNA bases?
2. Paper-pen chromatography separates ink using what property of the ink molecules?
3. Name one way cat hair differs from dog hair.
Troy SciOly 2019 - 2023
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
- ZachMUHS
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Re: Crime Busters B
1. adenine, cytosine, guanine, thymineSilverBreeze wrote: ↑January 14th, 2021, 1:48 pm I'll put up the next set of questions since I'm going to forget:
1. What are the full names of the four DNA bases?
2. Paper-pen chromatography separates ink using what property of the ink molecules?
3. Name one way cat hair differs from dog hair.
2. Polarity, also the size and how attracted the pigments are to the paper has an effect.
3. Dog hair has small ovoid bodies and cat hair has a more imbricate pattern
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?
- SilverBreeze
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Re: Crime Busters B
Hey, this is the Crime Busters thread, not the Forensics thread. Could you post questions within Crime Busters rules so people can get useful practice for the event? Thanks!ZachMUHS wrote: ↑January 14th, 2021, 2:18 pm1. adenine, cytosine, guanine, thymineSilverBreeze wrote: ↑January 14th, 2021, 1:48 pm I'll put up the next set of questions since I'm going to forget:
1. What are the full names of the four DNA bases?
2. Paper-pen chromatography separates ink using what property of the ink molecules?
3. Name one way cat hair differs from dog hair.
2. Polarity, also the size and how attracted the pigments are to the paper has an effect.
3. Dog hair has small ovoid bodies and cat hair has a more imbricate pattern
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?
Troy SciOly 2019 - 2023
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
Captain 2021-2023
Former Events: Ecology, Water Quality, Green Gen, Ornithology, Forestry, Disease Detectives, Forensics, Chem Lab, Env Chem, Sounds, Dynamic Planet, Crime Busters, Potions & Poisons, Exp Design, Towers, Mystery Arch, Reach for the Stars, Mission Possible
- ZachMUHS
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Re: Crime Busters B
Sorry, I will ask the questions there. Sorry for the mistake.SilverBreeze wrote: ↑January 14th, 2021, 7:57 pmHey, this is the Crime Busters thread, not the Forensics thread. Could you post questions within Crime Busters rules so people can get useful practice for the event? Thanks!ZachMUHS wrote: ↑January 14th, 2021, 2:18 pm1. adenine, cytosine, guanine, thymineSilverBreeze wrote: ↑January 14th, 2021, 1:48 pm I'll put up the next set of questions since I'm going to forget:
1. What are the full names of the four DNA bases?
2. Paper-pen chromatography separates ink using what property of the ink molecules?
3. Name one way cat hair differs from dog hair.
2. Polarity, also the size and how attracted the pigments are to the paper has an effect.
3. Dog hair has small ovoid bodies and cat hair has a more imbricate pattern
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?
- azboy1910
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Re: Crime Busters B
Ok, here's a few questions:
1. What type of bonds exist between different water molecules?
2. Does the concentration of hydronium ions increase or decrease with pH?
3. Which layer of the hair shaft contains the pigment of a hair strand?
4. Will the color of a more polar molecule than a less polar molecule appear faster in a paper chromatography test? If so, explain why.
1. What type of bonds exist between different water molecules?
2. Does the concentration of hydronium ions increase or decrease with pH?
3. Which layer of the hair shaft contains the pigment of a hair strand?
4. Will the color of a more polar molecule than a less polar molecule appear faster in a paper chromatography test? If so, explain why.
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Re: Crime Busters B
azboy1910 wrote: ↑February 9th, 2021, 4:29 pm Ok, here's a few questions:
1. What type of bonds exist between different water molecules?
2. Does the concentration of hydronium ions increase or decrease with pH?
3. Which layer of the hair shaft contains the pigment of a hair strand?
4. Will the color of a more polar molecule than a less polar molecule appear faster in a paper chromatography test? If so, explain why.
1. Hydrogen bonds
2. The concentration of hydronium ions decreases with pH
3. The cortex
4. The color of a more polar molecule will appear faster. This is because water is a polar molecule, meaning that it can pull more polar molecules better.
1. Compare and contrast HDPE and LDPE
2. A soil sample is found to be 35% clay, 30% silt, and 35% sand. Determine the type of soil.
3. Give 3 examples of minutiae
4. What does PCR stand for? What are its 3 steps?
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