Chemistry - January 2007

2007-01-09 10:44:35 · 12 answers · asked by chocolateXXX 1

atomic number for Osmium

2007-01-09 10:44:11 · 2 answers · asked by dirt_bike_ride 1

what is the name of this polyatomic ion?

2007-01-09 10:33:33 · 1 answers · asked by xocharliexo121 2

wave impulse signature of color..

2007-01-09 10:31:56 · 7 answers · asked by aguces4 1

2007-01-09 10:26:34 · 3 answers · asked by Anonymous

2007-01-09 10:24:00 · 4 answers · asked by monkey241 1

2007-01-09 10:22:54 · 2 answers · asked by monkey241 1

HNO3 + Mg(OH)2----> Mg(NO3)2 + HOH
and
Fe2O3 +CO-----> Fe + CO2

all the numbers are supposed to be little but I don't know how to do that on the computer. Anyway each time I try to balance it, I think I got it but I don't. Please help!

2007-01-09 10:21:39 · 3 answers · asked by Samantha Jo 3

?

2007-01-09 10:20:45 · 3 answers · asked by Anonymous

1.Name the following acids using both methods. (10 marks)

a)H3P (aq)
b)H2SO4 (aq)
c)H3N (aq)
d)H2CO3 (aq)
e)HClO4 (aq)

2. Name the following bases. (3 marks)

f)KOH
g)Mg(OH)2
h)NaHCO3

3.Write the chemical formula for the following compounds. (5 marks)

a)hydrochloric acid
b)sodium hydroxide
c)aqueous hydrogen sulfide
d)phosphoric acid
sulfurous acid

2007-01-09 10:17:53 · 2 answers · asked by Girlie 1

Formic acid, HCHO2, is a stronger acid than acetic acid, HC2H3O2. Is the formate ion, CHO2-, a stronger base than the acetate ion, C2H3O2-?

2007-01-09 10:14:38 · 3 answers · asked by sue08090487 1

Calcium Chloride
Citric Acid
Phenyl Salicylate
Potassium Iodide
Sodium Chloride
Sucrose

2007-01-09 10:03:34 · 2 answers · asked by ♥ 2

I am doing an expiriment and need a little assistance

2007-01-09 09:54:58 · 3 answers · asked by yuvalibabyy 1

sugar? bleach? whats the formula for both of them?

2007-01-09 09:50:39 · 4 answers · asked by Anonymous

I need a link for the -ic and -ous classical naming system of chemistry. (Ex: ferrous, ferric, cuprous, etc.) Or please list them if you know them! Thanks.

2007-01-09 09:34:35 · 3 answers · asked by Simply Me 3

Which factor distinguishes a metallic bond from an ionic bond or a covalent bond?

1. the mobility of electrons
2. the mobility of protons
3. the equal sharing of electrons
4. the unequal sharing of electrons

2007-01-09 09:32:32 · 3 answers · asked by Science 101 2

2007-01-09 09:26:56 · 9 answers · asked by lovefergieangel 1

2007-01-09 09:19:26 · 18 answers · asked by Anonymous

Please show out the steps. I'm stuck

2007-01-09 09:11:56 · 3 answers · asked by lpkegirl 3

1.For more practice with naming ionic compounds complete the chart below.
Cation (+)Ion (-) Chemical Formula Name
NH4+ CO32-
Li+ S2-
Na+ Cl-
Ca2+ PO43-
Ba2+ F-
Ag+ NO3-
Fe2+ Br -
Fe3+ SO42-
Al3+ CO32-
Pb2+ OH-
2.How can you determine if a cation has more than one positive charge? (HINT: take a look at the Periodic Table of Elements)

2007-01-09 09:02:38 · 5 answers · asked by Anonymous

is it true that a percentage of tap water is a recyclement of bodily fluids???

2007-01-09 08:59:03 · 12 answers · asked by trout 2

i have tried everything but do not know the answers. i would really appreciate help.

Identify which type of reaction each of the following represents: (2 points each)

2H2SO4 + 4 KOH ---> 2 K2SO4 + 4H2O ________________________

Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) _____________________

2Li(s) + Br2(l) --> 2 LiBr(s) ______________________________

2H2O(l) --> 2H2(g) + O2(g) _______________________

Finish the following reactions and balance the equations. (4 points. each)
(Use the Helps and Hints file for help completing the reactions. Go through it step by step and let your instructor know if you have any questions.)

NaOH(aq) + Fe(NO3)3(aq) -->

NH3 -->

H2 + O2 -->

Mg + H2SO4 -->

thanks a lot.

2007-01-09 08:51:01 · 1 answers · asked by Anonymous

unit of measurement used of the first balance?

2007-01-09 08:43:55 · 10 answers · asked by Anonymous

C (s) + SO2 (g) ---> CS2(g) + CO(g)

How many liters of SO2 are required to make 152 grams of CS2?

2007-01-09 08:43:10 · 2 answers · asked by Anonymous

my daughter is doing a science project, it involves a shallow saucer of water with a candle in the middle of it , then you put a mason jar over top of candle...fire goes out due to lack of oxygen,right....then the water in the saucer is vacuumed up into the jar.....please tell me what this process is called...and if you have any ideas what to title this project...i need good advice - thank you...

2007-01-09 08:24:29 · 6 answers · asked by beachnut222000 4

Molecular chlorine gas and molecular fluorine gas combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that one volume of Cl2 reacts with 3 volumes of F2 to yield two volumes of the product. What is the product's formula??

2007-01-09 08:15:29 · 5 answers · asked by Kim L 1

please make it fast i have to pass it

2007-01-09 08:11:59 · 5 answers · asked by dunno 1

2007-01-09 08:03:41 · 2 answers · asked by frickenawesomekoreanandyouknowit 2

A) calcium
B) chlorine
C) hydrogen
D) sodium

2007-01-09 08:02:53 · 5 answers · asked by frickenawesomekoreanandyouknowit 2

2007-01-09 07:42:31 · 10 answers · asked by orgyfan52 1