Science & Mathematics - 7 October 2007

2007-10-07 01:20:49 · 3 answers · asked by Anonymous in Physics

what would they use to neutralise the acid and why. what are 5 characteristic properties of acids and the formulae of the chemical used to neutralise the acid. a word equation for neutralisation reaction. Indicators for strengths of acid. A balanced symbol equation for the neutralisation reaction. The formulae of acids and alkalis.

This is my 11 year old sons chemistry homework. Its got to be presented as a newspaper article - HELP!!!!!!

2007-10-07 00:58:33 · 6 answers · asked by Anonymous in Chemistry

2007-10-07 00:56:23 · 3 answers · asked by Anonymous in Weather

gre does it mean duplicate thing?

2007-10-07 00:52:59 · 3 answers · asked by 6833 1 in Biology

If we are not? What will happen to us and what will replace us?

If so - will we evolve further?

2007-10-07 00:40:15 · 8 answers · asked by John L 1 in Biology

From a Physics stantpoint. And be honest:

http://s223.photobucket.com/albums/dd78/floodtl/?action=view¤t=GroundPounder.jpg

2007-10-07 00:37:50 · 9 answers · asked by Anonymous in Physics

2007-10-07 00:29:58 · 3 answers · asked by d****** 1 in Physics

2007-10-07 00:28:04 · 10 answers · asked by Anonymous in Zoology

2007-10-07 00:16:50 · 12 answers · asked by anj 1 in Astronomy & Space

Dear person, in my chemistry textbook it is written that when iron is dipped in concentrated nitric acid, then iron is rendered passive due to the formation of an oxide coating on it; MY qs. is
1) what is the name and formula of that iron oxide.
2) Will nitric acid render all metals passive like iron by forming an oxide layer over it. If no,then what is the reason?
... thanks , swati

2007-10-07 00:15:11 · 1 answers · asked by Anonymous in Chemistry

Which have the most advanced laboratory in physics?

2007-10-07 00:00:29 · 5 answers · asked by andrei.teller 1 in Physics