what are subscripts?
what are molecules,elements,coumpounds?
stainless steel is a combanation of what twometals?
what are valeme electrons?
what is a anion? cation?
where are alkali metals?
what does polyatomic mean?
what ia a pure substance?
what is vacosity?
2007-01-16 12:49:04 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Subscripts are number writtens slightly below chemical symbols like H2O (the 2 should be written slightly lower than the H) they indicate the number atoms in a formula the 2 indicates there is 2 hydrogens in the formula.
Al2O3 would be 2 Al and 3 O.
valance electrons are the outer electrons- they are important in bonding
anion is a ion with a negative charge
cation is an ion with a positive charge
alkali metals are in group 1 of the periodic table they are highly reactive metals.
poly- means many atomic mean atoms
so polyatomic indicates a ion made up of several atoms SO4 sulfate would be an example
a puresubstance is something with a definate and unchanging composition
examples are elements and compounds
Au gold (element) and CO2 carbon dioxide (compound)would be examples
I think your last one you mean viscosity
Viscosity is rate of flow.
Fluids with high viscosity flow slowly like syrup
Fluids with low viscosity flow quickly like water
2007-01-16 13:05:54 · answer #1 · answered by orangehack 2 · 0⤊ 0⤋
I know a cation is a postitivly charged ion and an anion is a negatively charged ion. I THINK stainless steel is made of iron and carbon, I'm not sure about that one though. For the rest of them, google them or something. or go to dictionary.com
2007-01-16 20:53:40 · answer #2 · answered by Alex 2 · 0⤊ 0⤋
honestly, i could answer this, howevere, by the time you wait for all of the answers to come in, you could look all of these things up in the glossary or index of your text, or google the words online.
and its viscosity, not vascosity.
2007-01-16 20:56:04 · answer #3 · answered by itutorchem 2 · 0⤊ 0⤋