Chemistry - April 2007

ammonium hydroxide, i know it is ammonia, wikipedia say other wise, but name reactions and name the ones that are explosive.

winner gets 10 points.

2007-04-03 16:36:17 · 5 answers · asked by Me + Me = BANG! 2

A. lower activation energy and lower reaction rate.
B. lower activation energy and higher reaction rate.
C. higher activation energy and lower reaction rate.
D. higher activation energy and higher reaction rate.

2007-04-03 16:35:14 · 1 answers · asked by shevchenko 1

2007-04-03 16:35:08 · 2 answers · asked by Anonymous

2007-04-03 16:33:13 · 1 answers · asked by che_karlos 2

Mg + HCl
NaOH + HNO3
C4H10 + O2
F2 + KI

2007-04-03 16:28:24 · 2 answers · asked by dummy 1

What is it...i see it on every Pack i buy>>>>

2007-04-03 16:26:58 · 13 answers · asked by testofpain 1

2007-04-03 16:13:41 · 4 answers · asked by Jessica A 1

HNO3
N2O3
Al(OH)3
ZN(ClO4)2

2007-04-03 16:12:17 · 4 answers · asked by dummy 1

2007-04-03 16:07:32 · 1 answers · asked by Matt S 1

2007-04-03 15:55:10 · 2 answers · asked by Anonymous

when a cation reacts with OH- in water to form H+ and an insoluble hydroxide.

2007-04-03 15:41:50 · 1 answers · asked by miggyjb 2

I have a debate tomorrow and i need counter-arguements, facts for against cloning.

2007-04-03 15:23:20 · 6 answers · asked by Anonymous

Also can someone tell me where I can look for this type of info.

I know it has something to do with the mg/mL ratio. And I want to learn how to do this type of problem on my own.

Thanks

2007-04-03 15:15:29 · 0 answers · asked by some guy 1

Fe + CuSO4 --> FeSO4 + Cu, ive got to talk about redox and the Fe ions... PLEASE HELP!

2007-04-03 14:54:53 · 2 answers · asked by steph 1

does anyone know this?

1) Water reacts with the oxides of many metals to form
a)acids
b)anhydrides
c)bases
d)salts

2) An acid anhydride is
a)HCl
b)H2O
c)SO2
d)CaO

3) The compound formed when a metal replaces the hydrogen in an acid is a(n)
a)acid
b)base
c)salt
d)indicator

4) A metal which will form a base when reacted with water is
a)Zn
b)Na
c)Fe
d)Cu

5. Acid solutions cause reddish-purple phenolphthalein to become ______?

6. To produce a given acid, react sulfuric acid with the _____ of the acid desired.

7. An oxide which dissolves in water to form an acid or base is called a(n) ____.

8. A base is also known as a proton ____.

9. A base consists of a metallic element or radical combined with one or more ____ radical.

10. A base may be produced by reacting a salt of the desired base with _____.(Write out the compound name.)

11. A substance which shows the presence of an acid or base by changing color is called a(n) ______.

2007-04-03 14:46:01 · 3 answers · asked by frickenawesomekoreanandyouknowit 2

Write a balanced equation for each of the following reactions, substituting symbols and formulas for names. Include the state of each reactant and product. Then identify the reaction type for each. If more than one reaction type occurs, list all that apply. Write net ionic equations if they apply.

8) Most industrial production of metallic sodium is accomplished by passing an electric current through molten sodium chloride. Chlorine gas also is produced.

9) Liquid pentane (C5H12) burns, producing water vapor and carbon dioxide.

Predict the products in each of the following reactions. if no reaction occurs, write NR.

4) Rb (s) + CaCl2 (aq)

6) Pt (s) + MnBr2 (aq)

13) F2 (g) + NaI (aq)

14) Zn (s) + AgNO3 (aq)

thank you. oh, and does anyone happen to know any good sites, or advice that'll teach me how to do more of these? i've been needing help on these, and i have a test coming up.

2007-04-03 14:37:25 · 2 answers · asked by KN 1

i cant find the specific heat of methane

2007-04-03 14:29:27 · 2 answers · asked by Anonymous

Can anyone give me the Number of Valence Electrons for:
(The numbers afer the elements are what I found)
**Remember, I am not looking for someone to do my homework!!**

Oxygen-6
Aluminum-3
Calcium-10
Copper-4
Lead-5
Mendelevium-12
7th grade chem help!!

2007-04-03 14:18:26 · 3 answers · asked by ĦΛЏĢħŦŞŧμρђ 2

The specific heat of silver is 0.237 J/g°C. Its melting point is 961°C. Its heat of fusion is 11 J/g. How much heat is needed to change 9.5 g of silver from solid at 25°C to liquid at 961°C?

2007-04-03 14:09:37 · 3 answers · asked by Anonymous

2007-04-03 14:09:19 · 5 answers · asked by pinaygirl_08 1

By the way, the enthalpy of the reaction is: ΔH = -92.5 kJ/mol

So, will increasing the volume of the system cause more NH3 to form? Will decreasing the pressure cause more NH3 to form? What about lowering the temperature? Or, lowering the enthalpy of the reaction?

2007-04-03 14:03:59 · 2 answers · asked by Random G 3

2007-04-03 13:51:24 · 1 answers · asked by Anonymous

Mg(s) Mg(g) H° = 148 kJ
F2(g) 2 F(g) H° = 159 kJ

Mg(g) Mg+(g) + e- H° = 738 kJ
Mg+(g) Mg+2(g) + e- H° = 1450 kJ

F(g) + e- F -(g) H° = -328 kJ
Mg(s) + F2(g) MgF2(s) H° = -1123 kJ


how do i do this? please explain. I do not get it

2007-04-03 13:26:31 · 1 answers · asked by pinay804 2

Why don't the slightly soluble oxychlorides of bismuth and antimony precipitate wiht the Group I chlorides (mercury(I) chloride, silver chloride, and lead(II) chloride)?

2007-04-03 13:25:38 · 1 answers · asked by evvykat 2

this is for my science fair project. [the answer doesn't have to be correct just say wat you think and why] thankss! =]

2007-04-03 13:23:02 · 3 answers · asked by ms.problemsolver 3

4(Al) + 3(O)2 = 2(Al)2(O)3
part 1. How many grams of aluminum oxide are produced when 50.5g aluminum react?
part 2. When 0.570 mole aluminum is reacted in a closed container with 8.00 g oxygen, how many grams of aluminum oxide can form?
i cant seem to get the right answer at all

2007-04-03 12:26:27 · 1 answers · asked by orange_crush_05 6

Could you please explain to me HOW a pH indicator works? WHY do they change colours? If you can give me a chemical equation, that would be nice. Also, if possible, could anyone specifically tell me how the anthocyanin delphinidin (OHOHH- OHOHOH) works??

2007-04-03 12:21:59 · 2 answers · asked by Allieway 3

2007-04-03 12:16:37 · 2 answers · asked by Anonymous

2007-04-03 12:05:11 · 2 answers · asked by lisa r 1

1. element's chemical name and symbol
2. atomic number and atomic mass
3. location on the periodic table; group, family, classification: metal, non metal, metalloid
4. year of discovery and scientist/ group/ institution credited with discovery
5. properties: a. physical/ chemical [at least 5 of each]
6. where the element can be found naturally and methods of mining/ extracting it
7. uses of the element in today's technology and the reasons they are suited for that purpose. include past uses.
**
specific answers to each question/ part...if can, no links, but it's ok if you put them in.
**
thanks.

2007-04-03 11:45:09 · 5 answers · asked by illdaretofly 2