Science & Mathematics - 13 October 2006

2006-10-13 00:17:51 · 2 answers · asked by XXDaPrincessXXPJ 1 in Other - Science

2006-10-13 00:15:50 · 4 answers · asked by XXDaPrincessXXPJ 1 in Other - Science

2006-10-13 00:14:37 · 2 answers · asked by john cena 1 in Biology

Does energy contain imputity,and how can mass turn into impure energy?

2006-10-13 00:10:21 · 6 answers · asked by goring 6 in Physics

2006-10-13 00:07:53 · 7 answers · asked by Anonymous in Mathematics

what was the first living being to land on moon? Was it Human(Neil Armstrong) only or had we were able to land any other living organism like animals ,bacteria,insect etc.. before Neil Armstrong landed on moon in 1969?

2006-10-13 00:05:20 · 17 answers · asked by Anonymous in Astronomy & Space

im so confused.. please help..

Write the name and symbol of the ion formed when
a. a sulfer atom gains 2 electrons
b. an alluminium atom loses 3 electrons

how do u do that?

for a) would it be something like S2+?
and b) Al3-? or just Al because its Al3+ in the periodic table?


How many electrons are lost or gained in forming each ion?
a) Ba2+ b) As3- c)Cu3+

a) 2 gained? b) 3 lost? c) 3 gained?

2006-10-13 00:03:36 · 4 answers · asked by yassem1ne 2 in Chemistry