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Chemistry in daily life
Top 3 questions
Food and baking soda
Why does our body need metal elements?
Why do we usually use alloys instead pure metals in daily life?
Why does the temperature decrease when we go up higher in elevation?
What is the original color of soap?
Dishwashing liquid - its ingredients and the difference between "mild" and "anti-bacterial"
What are the white crystals which grow on iron pyrite?
Why do we feel warm when we put on a knitted sweater?
Does silver, which is used as an antibacterial agent, make a precipitation with chloride ion in tap water?
Has the number of atoms on Earth changed since the birth of the Earth?
Silica in cosmetics
What does the nonionic surfactant do for weed killer, and what is the difference between surfactant for weed killer and for detergent?
Is there any method to separate two kinds of powder without any modifications to the powder?
Separation and mixture of atmosphere
How to remove attached organisms (e.g., seashells) from old pottery
What chemical reaction is going on when cooking rice?
Chemical reaction for bleaching denim
Why does glass contain metal?
Mica in cosmetics
Why are living creatures made of carbon atoms?
Why do diamonds have many colors?
Does water freeze at 1 C° when there is wind?
The difference between artificial vinegar and natural vinegar
The difference between anionic and nonionic surfactant, and its application to detergent
Why does a balloon make such a big noise when it pops?
Antimicrobial activity of soaps
Is there any pen which can resist both water and alcohol?
Why is it prohibited to warm up metal by microwave?
Can a metal become a gas?
Why is it better not to over-stir eggs before cooking them?
How are denatured proteins in pasteurized milk treated?
Why does a glue stick have adhesive force, even though it is not sticky?
The role of glycerin in soaps and cosmetic product
Salted boiled eggs
Iron oxides in cosmetics
What is the difference between bubbles which disappear quickly and bubbles which remain for a long time?
Why does the water boil below 100 °C?
Why do air conditioners and refrigerators leak Freon (chlorofluorocarbon)?
The difference between transparent soap and opaque soap
What is contained in auto emissions?
What will be left after tap water is evaporated?
What is acid rain? What can we do about it?
Do “negative ions” exist in air?
How to reuse drying agents
How to make paper using waste paper
Why does ice float on water?
Chemical properties of “magical?” baking soda
What is the difference between soap and shampoo?
Could you tell me how to make “artificial acid rain”?
Why is it so dangerous to mix chlorine bleach with acidic cleaner?
What is the main component in ginseng?
Are there any oxidizing reagents which are good for our body?
Why do people with acute alcohol intoxication always receive I.V.?
Is vitamin C effective for treating a cold?
How does fat become energy?
About dry skin
Is it true that teeth may be whitened by wiping with squeezed lemon juice?
High school chemistry
Top 3 questions
Iodine in iodine solution and its reaction
Is there a molecule of NaCl?
Electron transfer in "lemon" cell
The relationship between the concentration of sulfuric acid and pH
The volume was decreased when a substance was dissolved in water. Why?
Potassium permanganate titration
What happens inside and outside of the test tube during the silver mirror reaction?
Is it possible to make nylon from sugar?
Protein folding
Where is the extra electron located in the hydroxide ion?
Diazotisation of aniline
Silver mirror reaction – the difference in reducing power
Oxidation of formic acid
How to make glucose
The reaction at electrode of a voltaic cell
What does an equation for a chemical reaction mean?
Concentrated sulfuric acid is a strong oxidizing agent
, but
diluted sulfuric acid is not. Why?
Specialist chemistry
Top 3 questions
Reagent bottle for sulfuric acid
We used plastic labware at our organic chemistry lab class. Is it alright to use plastic?
Why don't water and oil mix together?
What is the solvent for plastic bottle (PET) recycling?
Why is ultraviolet absorption spectrum continuous?
How much will salt be dissolved in organic solvent?
Sterilization by use of electrolysis of salt water
Interaction between cationic ions
Concerning solid reaction method – the method of making thin membrane
The relationship between pH and extraction of fat
Disinfection of Legionella bacteria using hydrogen peroxide
Disinfection using hypochlorous acid
Relationship between dissolving oil into water and interfacial tension
Heat resistance of glass against Laser
Could you tell me about the orbitals for the oxygen in phenol?
Disinfection by ozone
Why are proteins more soluble in alkaline than in acid?
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