Actually word Heavy Chemicals use in a broad sense it means the chemicals that are widely used in a country or in a territory.
Also the product of chemical industries that are raw material of other industries are called heavy chemicals.
A heavy metal is a member of an ill-defined subset of elements that exhibit metallic properties, which would mainly include the transition metals, some metalloids, lanthanides, and actinides. -http://en.wikipedia.org/wiki/Heavy_Metals
The expression "heavy metal" is not serious and it is not agreed by IUPAC; a correct definition is not possible.
But traditionally metals with an atomic number greater than then 21 were considered as heavy.
Heavy. And I believe that the corporate name actually is "Pfizer Pharmaceuticals.
This is not a correct term; probably you think to compounds with a big molecular mass.
It is a heavy glass bottle (unlikely to break or react with the reagent chemicals) used to store moderate amounts of laboratory chemicals (reagents)
No. Heavy water refers to water formed with a majority of the heavier isotopes of hydrogen, which are very radioactive; this water can be used to transport such isotopes more easily. Cells use many different chemicals to get their energy, but water is a product of the process, not an "ingredient".
All acids are chemicals but not all chemicals are acids.
Heavy. And I believe that the corporate name actually is "Pfizer Pharmaceuticals.
This is not a correct term; probably you think to compounds with a big molecular mass.
I would say, that which is sourced from a heavy pest spraying area; full of toxic chemicals!
Chemical runoff in an agricultural context is when farming chemicals, such as fertilizer are not absorbed into the topsoil. When a heavy rain comes, these chemicals are caught in the storm water runoff and make their way into streams, rivers, and lakes.
"Chemicals, heavy metals, parasites, fungi, viruses and bacteria can cause food borne illness."
Lead is considered a heavy metal. It bonds to many chemicals in the organic system of animals and prevents them from working properly.
hydrogen and oxygen, same as ordinary water except the hydrogen is twice the mass of ordinary hydrogen and we call it deuterium.
"Heavy Water" still has the formula H2O, but the hydrogen in the water has a neutron as well as a proton- much like Helium does. It still has it's one electron however. Heavy water is used in NMR as a solvent for organic chemicals in proton NMR- to avoid interference on the spectra.
Cyprus's main imports include oil, chemicals, heavy machinery, clothing, electrical goods, vehicles, clothing and steel.
Depends greatly on the chemical: a gallon of helium or hydrogen will have negative weight, while a gallon of lead would be too heavy to lift.
From the polluting elements, which can consist of germs, fungi, algae, heavy metals, chemicals, and other harmful matter.
It is a heavy glass bottle (unlikely to break or react with the reagent chemicals) used to store moderate amounts of laboratory chemicals (reagents)