Iain Hunter asks

What is the chemistry behind the method of cleaning silver where you place it on some aluminum foil...

Kaycie Nabeta asks

Can you explain where the "extra" ATP comes from in photosynthesis? As I understand it: 24 ATP...

david caron from Toronto asks

What is the energy required to split H2O, (joules), and the energy released from combusting H2 +...

Lori Lancaster asks

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

Julie asks

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

Corinna asks

Can stabilized oxygen be used in place of iodine or chlorine to purify water? What if used in...

Charl Mai from Vancouver, Canada asks

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

Antony St-Jacques from Kingston asks

How can I separate NaCl so I can obtain Na?

Payal from Buffalo asks

How do you determine the proportion of the various gases in the air?

Julian asks

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

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...

Michael Baird asks

Can you help me with a wonderful magic trick I performed as a boy? I made a silk rose change...

Sara asks

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

Sam asks

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

Mohammed Talha Khan asks

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

Mike Tripple asks

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

Peter Baum asks

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

Helina from Shakespeare asks

What two liquids combine that gives you a solid instantly?

Tony Sousa asks

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

Chandler robinson asks

What is Tritium?

Michel lamontagne from edmonton asks

I am wondering how water/air changes it's molecular structure so that when air is heated it...

Josh Blake from Mississauga, Ontario asks

I am really interested in chemistry and I was wondering where I would be able to purchase some of...

Jonathan asks

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

H Beken from Dayton, Ohio asks

I have been trying to find formulas for simple auto windshield washer fluid. Can't find anything....

Eric Johnson asks

Is it harmful to inhale sulfur which has been heated?

Corinne Keffer from Halifax, NS asks

I have a liquid crystal display screen computer monitor. I am looking for unbiased information on...

B.Krystol from Jasper asks

Why is Isobutane ( C4H8) a gas at 25 C and Dodecahedrane ( C20H20) a solid at 25 C?

petra from chamblee asks

How long does it take styrofoam to decompose? Are there chemicals that help to cause the...

justine van der Werf from Tiaro asks

I have read that when oxygen is condensed to a liquid state, or indeed to a solid state it becomes...

Sandra Lenzi from Morris Plains, NJ asks

Why is the helical content higher in gelatin with higher molecular weight. In other words, it seems...

Atul Mulay asks

What chemical reaction takes place when you use henna to tint skin? Is it possible to extract the...

Ian Hancock from Calgary asks

In Chemistry today, we learned that when HCl is ionized in water, the H2O becomes H3O+, because of...

Cathy Schroeder asks

Why do batteries behave differently when kept at different temperatures? In my science project a...

D. Andrew White from Toronto asks

Do different isotopes vary slightly in chemical properties? Or are they the same? i.e. are the...

Amanda from Calgary asks

I am interested in finding more information on how to detect the presence of arsenic in the foods...

Jerry E. Allen asks

Is it possible to freeze water in a vacuum? Is there a chart that shows water temperature vs....

Nathaniel P. Luga from Cebu City asks

What chemical or chemicals that can desolve a strong concrete structure, and what is its mixture...

Carla Becker from Dallas asks

If we are making a perfume and we pour alcohol on an orange peel; why would the smell increase the...

George Donati from Andradas-MG- Brazil asks

When you squeeze out a piece of orange-peel on a flame, it catches fire violently. Why? What is...

Joaquin Cornejo from Los Angeles asks

Why do dry cell batteries (rechargeable) need to be fully drained before they can be recharged?