Chemistry

Andrew Foster asks,

In the book Cat's Cradle by Kurt Vonnegut, Jr., there is a chemical compound called Ice-nine. Ice-nine is a formula that freezes anything under 114...


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Chemistry

Jason Bever From Valrico, Florida, asks,

At a bar a fellow was doing a bar trick in which he asked anyone for a piece of foil from: cigarette pack/ gum wrapper or aluminum foil from kitchen....


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Chemistry

Umit K From the Internet, asks,

Is there a way to make a simple smoke bomb that isn't poisonous or harmful? How would I be able to change the colour smoke it gives...


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Chemistry

Heather M. Jones From Dayton, asks,

I would really appreciate it if someone could help me make sense of T. S. Eliot's chemistry analogy in his essay, "Tradition and the Individual...


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Chemistry

Gerry MacDonald asks,

Is water from a dehumidifier de-ionized? The owner's manual for my car suggests that engine coolant should be mixed with distilled or de-ionized...


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Chemistry

Michael Guenther From Long Beach, asks,

Do you know of any analysis or test data available to show that aluminum will not spark if struck against aluminum, stainless steel, or any other...


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Chemistry

Jamie Duckett asks,

In my science 9 class we recently had a discussion about physical and chemical changes. Here is the question: if you boil water and then put a tea...


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Chemistry

Kelly asks,

Why does an ice cube melt faster in tap water than salt water? ...


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Chemistry

Lupe Muratalla From dallas, asks,

When seperating hydrogen and oxygen from water by using electricity is there a safe way to contain the oxygen and filter out any hydrogen? And if...


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Chemistry

Jessie Meyers From Sydney, asks,

Why does lemon prevent the browning of apples? When browning of apples is caused by a reaction with oxygen. But lemon only helps to reduce acidity or...


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Chemistry

Tania asks,

How does dish soap work to clean...


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Chemistry

Carole Smith From Timmins, Ontario Canada, asks,

My son, age 12 is asking for a chemistry set for Christmas. This is an area that has always interested him and I now feel is a good time to get him...


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Chemistry

Kelvin C From Markham, Ontario, Canada, Amérique du Nord, asks,

I was...


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Chemistry

Michael Doggett From Kingston, ONTARIO, CANADA, asks,

We have an older pop machine at work with canned soft drinks. Sometimes, when a pop is opened that comes right from the machine, the contents...


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Chemistry

Jon asks,

Why doesn't a neon sign finally "run out" of exited atoms and produce dimmer and dimmer...


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Chemistry

Maren From Cold Spring, asks,

Why does phenolphthalein turn pink with a base? I know it has something to do with light, but i don't know exactly what makes it turn...


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Chemistry

Bob Salo From Michigan, asks,

If matter expands when heated, and contracts when cooled, why does ice expand when water freezes? Please explain in layman...


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Chemistry

Jenny From Toronto, asks,

What do paper and plastic bags degrade to? How much does it cost to make a paper and plastic...


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Chemistry

Stephanie From Winnipeg, asks,

I heard that if you set fire to methylated spirit, it will catch fire, but nothing around it...


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Chemistry

An anonymous reader asks,

What are water's special qualities, and how do they work? ...


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Chemistry

Navid Patterson asks,

What is...


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Chemistry

nick simons From United Kingdom, asks,

Why does vitamin C not work as well if it has been heated? I know it is an acid. Does it turn in to a new compound or does it degrade, or if it is in...


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Chemistry

Satnam From Calgary, asks,

My question: How will they produce plastics, tires, roads or anything that is made from oil, once oil runs...


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Chemistry

Agin Thomas From Philadelphia, asks,

Does a magnetic and/or electric field have an affect on water’s ability to flow (if you can't answer that what about its affects on other aspects...


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Chemistry

D.D. From St.john's, NL, asks,

Ethanol is the focus of many tax dollars these days. It seems to me that the burning of any hydrocarbon is going to contribute to added...


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Chemistry

Rory From winnipeg, asks,

Why is it that a difference in the number of electrons in an atom makes a completely different kind of matter? Aren't the basic building blocks the...


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Chemistry

eray asks,

Why does water reach its maximum density at +4C instead of 0C? Why is water's density greater than ice's density although water is a liquid? ...


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Chemistry

shaheena From Karachi/Pakistan, asks,

The name for gas written on CNG filling station is octane. There are other members in the alkane series also, so why is only octane used and not...


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Chemistry

Hannah From Austin, asks,

Why does salt melt...


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Chemistry

Cesar From kalookan, asks,

What are the components of a fever strip and the chemical principles behind...


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Chemistry

Monse From Las Vegas, asks,

What type of salt melts ice the...


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Chemistry

Sébastien Morin asks,

How is aspartame synthesized (theoretically and within industrial...


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Chemistry

Anthony Daddazio From Maple, asks,

I have had some alkaline batteries (AAA, and AA) that have leaked. These batteries were in a TV remote control and a battery operated lantern in my...


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Chemistry

Amanda Parkin From Canberra Australia, asks,

Some shampoo is coloured in the bottle (purple or green) etc, why when you lather it up in your hair is it white? Why does your hair not turn the...


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Chemistry

Rommel Sato From Riyadh, asks,

What it the chemical composition of styrofoam? What raw material is the styrofoam made...


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Chemistry

Jim Davis asks,

For some reason, it is common knowledge in this community that when subjected to cold, hot water will freeze before cold water. Is there ANY basis...


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Chemistry

Ashley Robertson asks,

How do "bath bombs" work? Why do they fizz when placed in...


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Chemistry

Kris From Vancouver, asks,

I recently removed some mercury from a thermostat and I've been told by my teacher that to touch it will not hurt me. My brother has many doubts...


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Chemistry

Ethan Heil From Salem, VA, asks,

I am doing a research project on the strength of different batteries. Is there a cheap way to test a battery for factors like discharge, besides...


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Chemistry

Ken Louie From Washougal, WA, asks,

I spilled some iodine disinfectant on my vinyl tile floor. As an old chemist, the only chemical I know that will decolorize iodine is sodium...


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Chemistry

Louise Abbott asks,

Can you please provide background information on catalase and how it affects substrates such as hydrogen peroxide. Also, how is it affected by...


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Chemistry

deepak From friendswood, asks,

Will sodium or ammonium nitrate react with hydrogen sulfide ? If yes, what are the expected reaction products...


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Chemistry

Pankhuri Kalra From Delhi, asks,

Is there any reaction which can take place without the exchange of heat with the surroundings or within the...


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Chemistry

Semutblue From the Internet, asks,

Is there a liquid chemical that will glow when electricity is passed through it? What voltage would be...


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Chemistry

Swaminathan N From Chennai, asks,

Why do aqueous ionic solutions have less thermal conductivity than pure...


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Chemistry

Cheah Bok Eng From Penang, Malaysia, asks,

May I know what chemicals can undergo esterization by absorbing sunlight energy at 33 degree celcius. I'm doing a project on producing aromatic...


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Chemistry

Barbara Berghoff From Illinois/usa, asks,

I need to know what dissipates into the air during a salt analysis titration. I do this at work without a hood and I am wondering what I am...


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Chemistry

vijay kumar From BHOPAL INDIA, asks,

I have 30 liter sulfuric acid solution of 1.190 specific gravity, to make it stronger to 1.200 how much concentrated acid in liters or weight should...


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Chemistry

Jim Weaver From Lancaster, PA, USA, asks,

Since most dehumidifiers work on the principle of condensing on an aluminum coil, is there a possibility of getting trace amounts of aluminum, zinc,...


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Chemistry

Andrew Brown From New york, asks,

What does the word enzyme mean and how does it work in laundry...


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Chemistry

Stephen Leece From London, asks,

Are there any solutions that change their pH level from neutral to 8.5 or higher due to the temperature changing from 10C to...


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Chemistry

Beverly Ng From HK, asks,

Why does light degrade vitamin C? (in juice or liquid...


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Chemistry

christine From Ontario, asks,

What is the chemical process of making Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein? What's the cocodimonium? the process of mixing coconut...


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Chemistry

Kaitlyn Muller asks,

Could you tell me who discovered arsenic and...


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Chemistry

Colin Groves From Kansas City, Kansas, U.S.A., asks,

How do you become a scientist? What do scientists do in a normal day? What did you study in college and how long were you there? What sorts of...


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Chemistry

Kayli Taylor From Belleville, asks,

I would like to know if you could help me in my quest to making harsher laws about Driving Under the influence of Marijuana (DUM). I am wondering if...


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Chemistry

Eric Leclair From Ottawa, asks,

In the past, I have used Vinegar to kill unwanted weeds along walkways, around the patio, etc... But if one wants to use acetic acid as a truly...


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Chemistry

Mary Schroeder From Weston, asks,

I was recently reading an article about large amounts of fish dying on very hot days due to oxygen depletion on Long Island. I was wondering, what...


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Chemistry

Kim From london, asks,

When making a mixture of solvents up to a particular volume eg. 2L of 25% methanol 75% DMSO. My calculations would tell me to use 500ml methanol and...


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Chemistry

Lindsay From New York City, asks,

What is the chemical make-up of film? I am searching for a detailed make-up of either 35mm film for photography or film that is used in the...


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Chemistry

Bryson From Fort Lupton, asks,

Why will hard boiled eggs tarnish silver. But a egg cooked scrambled in a pan with nothing else added, will not tarnish the...


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Chemistry

Cheryl Wess asks,

Why when you make lollypops do you have to boil the ingredients to 300 degrees for it to...


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Chemistry

Elizabeth From Los Angeles, CA, asks,

I'm doing a science report on Arsenic and i was wondering do you know what is the meaning of the...


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Chemistry

KC From San Jose, asks,

When using invisible inks, why does the organic substances (like milk) in the writing burn more quickly than the paper? (say heated with an...


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Chemistry

Sheila Hart asks,

How can you detect a chemical in the human body even after it has passed through? For example, alcohol passes through the body in 24-48 hours. But it...


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Chemistry

Jefrey From KL, asks,

What is the purpose of polyvinylpyrrolidone in the making of hard capsule gelatin. What is the grade/spec used and where is it derive from? Who is...


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Chemistry

Emma From the Internet, asks,

Why has Aluminium only recently been extracted from its...


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Chemistry

Philip Newman asks,

How and where is aluminum...


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Chemistry

chris From Saint John, asks,

Boron trifluoride (BF3) is non-polar, yet is much more soluble in a polar tetrhydrofuran (THF) than in non-polar solvents. Can you explain why BF3 is...


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Chemistry

Steve Appleby asks,

What catalysts are needed to break down plastic containers, such as yogurt...


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Chemistry

Alysha Gulutzan asks,

How many electrons, protons, and neutrons make up a nickel...


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Chemistry

Tony From Melbourne, asks,

In my recent science project, I tried discharging batterys in the freezer, fridge and room. The results were , the lower the temperature the shorter...


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Chemistry

Kashif From Toronto, asks,

Why is propylene glycol not an alcohol? Same for glycerol. Why don't they evaporate and smell like...


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Chemistry

John asks,

How can I determine the specific gravity of a small rock? I have a very accurate digital scale, but I can't seem to remember how to do this (I have...


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Chemistry

david caron From Toronto, asks,

What is the energy required to split H2O, (joules), and the energy released from combusting H2 + (1/2)O = H20? I'd like to know if there is a net...


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Chemistry

Charl Mai From Vancouver, Canada, asks,

Do herbal medicines interfere with the effectiveness of prescription medicines? If so, how does it affect one another?...


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Chemistry

Julie asks,

What is the chemical make-up of pear, banana and apple...


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Chemistry

Leo From Montville, NJ, asks,

Where can I find the data to support that polyvinylpyrrolidone is safe for medical applications? Please advise. Thank...


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Chemistry

Antony St-Jacques From Kingston, asks,

How can I separate NaCl so I can obtain...


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Chemistry

Payal From Buffalo, asks,

How do you determine the proportion of the various gases in the...


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Chemistry

Julian asks,

How can I make my own methylated spirit? How does pectin gel?...


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Chemistry

Sara asks,

What is fire composed of? Could you have liquid fire, or solid...


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Chemistry

Iain Hunter asks,

What is the chemistry behind the method of cleaning silver where you place it on some aluminum foil in water to which washing soda has been added? I...


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Chemistry

Shaheena Perveen From Karachi, Pakistan, asks,

Why do we get coloured water if we put a slice of beet root in water but we do not get coloured water if we put a piece of carrot in...


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Chemistry

Corinna asks,

Can stabilized oxygen be used in place of iodine or chlorine to purify water? What if used in conjunction with a .01 micron water filter? Stabilized...


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Chemistry

Michael Baird asks,

Can you help me with a wonderful magic trick I performed as a boy? I made a silk rose change magically from white to violet as follows:

  1. I...


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Chemistry

Kaycie Nabeta asks,

Does the location of chlorophyll a in the thylakoid membrane have anything to do with its effectiveness in photosynthesis? Or is it just there...


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Chemistry

Lori Lancaster asks,

Why does a saturated solution of calcium acetate gel when either ethanol or isopropanol is added to...


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Chemistry

Mohammed Talha Khan asks,

Why does water evaporate when it is left out in the open? ...


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Chemistry

Citre asks,

What is tocopheryl acetate? It's also called Vitamin E acetate. Is it like the chemical acetone or is it more like Vitamin E? I've noticed that the...


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Chemistry

nohjin asks,

Where does the energy in freezing water come from? When water freezes, its volume increases so that it has enough "energy" to break a sealed jar full...


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Chemistry

Tony Sousa asks,

How do hot packs work? My wife purchased a reusable hot pack for keeping our baby warm when we go out in the...


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Chemistry

Helina From Shakespeare, asks,

What two liquids combine that gives you a solid...


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Chemistry

Peter Baum asks,

How can I measure how much liquid is in an apple, lettuce, a potato, and an orange? ...


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Chemistry

Saw Mui asks,

Why does the Periodic Table of the Elements have two separate tables - one above and one...


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Chemistry

Lia Cassanego asks,

I am experimenting with microwave reboil caused when you microwave coffee or water and add sugar, causing a reboil. I have also tried this experiment...


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Chemistry

Sam asks,

Can a 'stove' be made using methane gas produced by waste...


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Chemistry

Mike Tripple asks,

What happens to the ice cubes in our freezer bucket. They get smaller even if they are a solid. Do they...


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Chemistry

Jonathan asks,

Would you be able to help me out in any way to find material on Fluorine? ...


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Chemistry

Chandler robinson asks,

What is Tritium? ...


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