Help me understand hair care chemistry. When I look at the list of ingredients on bottles of conditioner, what ingredients should I avoid. I can't stand the 'waxy' feeling I get from some conditioners. My old favorite standby conditioner changed formulas recently and it now has the dreaded waxy ickiness. NOT looking for specific product recommendations, only for ingredients to avoid or possibly ingredients to look for. [more inside]
Do you know of resources for understanding Density Functional Theory for Inorganic Chemists? [more inside]
I'm trying to find coffee mugs that have individual elements on their sides for a birthday gift, but have not been able to find them. Can you help? [more inside]
Quick chemistry question - do i need to dilute this or is it already diluted [more inside]
I can't get the phrase "Nonoxyl-1,5-Triethylamine" out of my head. Obviously, it is an IUPAC name for an organic chemical, but AP Chemistry was a long time ago and I can't quite map out if it's valid— my hunch is "no." Is there a notable chemical that has a similar name that I might be half-remembering? More importantly, is there a website where I can look things like this up in the future?
If you were to combine 1 cup of skim milk and 1 cup of 2% milk, does that essentially give you two cups of 1% milk? [more inside]
I'm giving a presentation next month need a funny joke about the difference between chemists/scientists and engineers (because I'm an engineer doing chemistry) [more inside]
"Silicon based life" is a perennial sci-fi trope - I guess because silicon and carbon share similar-ish valency properties. Has anyone actually tried to flesh out what a silicon chemistry complex enough to support protein analogues would look like? Or more broadly, has anyone proposed schemata for complex, self-replicating chemistries that differ substantially from those we know?
Looking for a chart or table that broadly summarizes/compares the relative bond energies of the most common intramolecular bonds found in organic molecules (think single and double bonds among C, H, O, N, and maybe S too). [more inside]
What's the best review/refresher book for high-school level chemistry? [more inside]
Na2CO3·1.5H2O2 + NaClO + H2O --> ??? Or, what actually happens when you mix bleach and oxyclean? [more inside]
What's this molecule? An antibiotic of some kind, I think? I've tried Google'ing based on its IUPAC name, no luck.
Should I use warm or cool water when I fill an ice cube tray to freeze? [more inside]
What's the best software for prepping for college-level hard sciences? [more inside]
There's a hair product my friends and I love that's been discontinued. Do you know of any companies or chemists that can duplicate it using the ingredients list on the back of the container for a reasonable price? Is there a minimum volume? Can I sell the extra on Ebay? Is this possible or just a pipe dream?
Please explain the stereochemistry of this reaction. [more inside]
Would a drug-manufacturing machine be legal? [more inside]
Why does stainless steel have such strange properties? [more inside]
what's the difference between speed and ice?
How long does it take you to know you want to "date" a first date from online? Is there more i can be doing to give chemistry a try? [more inside]
I am looking for a torch to melt pyrex (borosilicate glass). [more inside]
What kinds of simple, safe chemical reactions can I do to really wow a group of 6th graders? [more inside]
BookFilter: I'm looking for a book for my (26-year-old) brother on what I'd call "kitchen chemistry"; i.e. cool experiments that you can do at home just for the sake of making something awesome happen. [more inside]
I went from loving my degree to completely meh about it...what now? [more inside]
I am planning to go get my PhD in chemistry and I am waiting to hear back from schools. I have already been accepted to 3 schools (one in the top 10), however, I really like some of the faculty at one located in the 30s in the rankings. How important are the rankings and will they have a big affect on my career?
What are the best academic journals in each field? [more inside]
How can Prelief react with food acid but not with stomach acid? [more inside]
I'm throwing a chemistry themed birthday party. I need help generating some awesome ideas. [more inside]
Help me pass general chemistry the quick-and-dirty way. [more inside]
What is the best way to move hot air? Would it be blowing air across the heat source (ex: wood stove) or suck the air away from the heat source? [more inside]
ToxicWasteFilter: How do I clean up a copper sulfate spill? [more inside]
NoveltyUseOnlyFilter: Chemists- do you think it would be possible to develop a chemical compound (aerosol? liquid?) which could counter tear gas by causing it to break down/change phase? [more inside]
I'm baking chocolate chip cookies and after looking at some recipes, I realized that they all use baking soda (not baking powder) as the leavening agent. The explanation is that baking soda interacts with the acids in the chocolate to produce the leavening CO2. My question is this: Can I freeze my baking soda leavened dough? Can I leave it in the fridge until I'm ready to bake? [more inside]
Organic Chemistry filter: I just want to make sure I'm doing this right... [more inside]
my mother used to put a few drops of hydrogen peroxide in milk to keep it fresh past the 'use by' date. it appears to work. very well. what's the chemistry behind this? and should i drink it?
What type of equipment is necessary to determine the chemical makeup of a given substance, is such equipment available to the general public, and if so at what cost? [more inside]
What happened to my Shampoo? I mixed two different Shampoo brands about 70/30 and liked the resultant mixture. The next time I mixed them 50/50 and overnight the mixture lost all it's "thickness" (viscosity, I guess) and still works fine, but is as thin as milk if not thinner. [more inside]
What is the most important scientific question of our time? [more inside]
Please help me really grok chemistry. [more inside]
I don't understand physics. How do atomic orbitals work? [more inside]
What are your best study strategies for learning organic chemistry and/or anatomy? [more inside]
BeautyNerdFilter: Luck with homemade Vitamin C facial serums? (Chemists welcome!) [more inside]
Can you think of an example of when a color could be said to have "changed the world"? [more inside]
I feel like I am exerting a lot of energy towards dating without much return. I have fun while doing it, but since I rarely meet someone who lasts more than a date or two, it’s starting to feel like an exercise in futility. I have dating quantity, but how do I get quality? [more inside]
hotdogfilter - Why do BallPark Franks plump when you cook them? [more inside]
My shower (an in-stall water heater) sometimes smells like something rubber is burning. It's a strong acrid smell that I only notice while in the shower and usually only after a sweaty workout. There is no sign of smoke like you would expect with burning rubber. Is this just some sort of weird sweat and treated water chemical reaction? Anybody heard of something like this?
Physics/chemistry/tire tread composition filter. Why does adding silica to the rubber compound in a tire tread reduce rolling resistance? [more inside]
PeeChemistryFilter: what the hell is going on here? [more inside]
What combinations of colourless non-toxic substances result in something that's coloured, or at least opaque? [more inside]
Is my propane grill going to work if the gas supply isn't up to U.S. standard? [more inside]