Science & Mathematics - 11 December 2006

1. strong reducing agents
2. Strong oxidizing agents
3. moderate reducing agents
4. moderate oxidants

2006-12-11 11:03:32 · 2 answers · asked by rob d 1 in Chemistry

2006-12-11 11:02:03 · 7 answers · asked by Tammy C 1 in Medicine

2006-12-11 11:01:38 · 2 answers · asked by Melissa A 2 in Chemistry

Phosphorus(PO4) or Nitrogen (NO3)?

2006-12-11 11:01:06 · 5 answers · asked by megan6288 1 in Botany

Which of the following are true statements for the given compound in aqueous solution ?


a) OH - : A Bronsted base, but not a Lewis base

b) NH3 : A Bronsted base and a Lewis base

c) CH3COOH : A Bronsted acid, but not a Lewis acid

d) Cr 3+(aq) : A Lewis acid, but not a Bronsted acid

e) CH3CH2CH2CH3 : Both a Bronsted acid and a Lewis acid


Note--- there can be more than one answer

2006-12-11 11:00:09 · 1 answers · asked by nietzsche 1 in Chemistry

lab safety

2006-12-11 10:59:29 · 6 answers · asked by colombianpride_08 1 in Chemistry

even thow i don't live in tornado alley i live in southeren Ontario Canada what should i do to get not scared and my mind of it?

2006-12-11 10:59:02 · 10 answers · asked by Blank girl 94 1 in Weather

2006-12-11 10:58:22 · 7 answers · asked by mervet k 1 in Zoology

2006-12-11 10:58:00 · 2 answers · asked by maribel e 1 in Botany

Gators are not as likely to eat people or even bite their arms off, than Americans being killed by lightning in Florida, or killed by a Tornado in Texas and a few other states.

But more likely than to be eaten by a shark (except for 1916).

In England people are not killed by gators, sharks, tornadoes, but lighting kills a few each year.

2006-12-11 10:57:45 · 7 answers · asked by Perseus 3 in Zoology

I need the rules for doing antiderivatives

For ex:

f'(x) = (f(x))/(g(x))
f'(x) = (f(x))(g(x))
f'(x) = f(x) + g(x)
f'(x) = f(x) - g(x)

sorry, since it has been so long, i am not certain how to actual write them.

I tried looking it up, but didn't really have any luck, but if you can, can you send me site(s) that will show me the rules to do them.

I can do derivatives just fine, its the antiderivatives i'm not all familiar with.

i can kinda understand how to do them, but i have seen some antiderivative answers with f'(x) + C and i'm not certain where the C comes from, and thats why i wanted the websites to show me how to work them.

2006-12-11 10:57:24 · 3 answers · asked by Sherman81 6 in Mathematics

The following reaction


CH3CH2CBr2COOH + NH2CH2CH3

produces water and what other product ?


a) CH3CH2CBr2CONHCH2CH3


b) CH3CCl2CONHCH2CH3


c) CBr3CH2CH2CONHCH2CH3


d) CCl3CH2CONHCH2CH3


e) CH3CBr2CONHCH2CH3


f) CH3CBr2CH2CONHCH2CH3

2006-12-11 10:56:57 · 1 answers · asked by WhoIsToby 2 in Chemistry

For the reaction

CH2=CH2 + Br2


Which of the following statements are true ?


a) The product is CH2Br=CH2Br

b) This is an addition reaction

c) CH2=CH2 is an alkene

d) The product will contain only single bonds

2006-12-11 10:56:42 · 5 answers · asked by WhoIsToby 2 in Chemistry

1. n=5, 1=2, m2=0, ms=1/2
2. n=3, 1=2, m1=0, ms=1/2
3. n=4, 1=2, m1= -1, ms= -1/2
4. n=4, 1=1, m1=0, ms = -1/2

2006-12-11 10:56:31 · 1 answers · asked by csu0811 1 in Chemistry

my teacher is a total jerk, and he only spends like 3 minutes explaining the lesson. I'm not very good in math anyways, algebra is hard help me!!

2006-12-11 10:55:30 · 7 answers · asked by Simply Amazing...* 1 in Mathematics

IN 3x = 6



and


In x = -2




please help me out! and if u can;t, then don't leave rude comments.

2006-12-11 10:55:23 · 5 answers · asked by Anonymous in Mathematics

cubes

2006-12-11 10:55:12 · 11 answers · asked by Annie andersaon 1 in Mathematics

This compound CH3CH2CH2CH2OH is an example of a\an _________ ?

Choose one of the following:

alcohol amine aldehyde ketone ester amide ether nitrile

2006-12-11 10:54:43 · 5 answers · asked by WhoIsToby 2 in Chemistry

Which of the following statements are true for the reaction


Ca(OH)2(aq) + HCl(aq) →



a) Water and a salt are the products


b) This is an elmination reaction


c) When balanced, the stoichiometric coefficient of HCl is one


d) The pH of the resulting solution would be seven

2006-12-11 10:54:22 · 2 answers · asked by WhoIsToby 2 in Chemistry

Which of the following statements are true for the reactions that precede them.
NOTE: Read the equations left to right


a) NH3 + H2O ↔ NH4 + + OH − NH3 is the Lewis base


b) HF + H2O ↔ H3O + + F − Water is the Lewis acid


c) C5H5N + H2O ↔ C5H5NH + + OH − Water is the Lewis base


d) Al(H2O)6 3+ + H2O ↔ H3O + + Al(H2O)5OH 2+ Al(H2O)6 3+ is the Lewis acid


e) NH4 + + H2O ↔ H3O + + NH3 Water is the Lewis acid

2006-12-11 10:53:51 · 1 answers · asked by WhoIsToby 2 in Chemistry

the elements with in the lanthanide series show some irregularity in the electron filling order because

1. the near degneracy in the energy levels of the 6s and 5d orbitals
2. the near degneracy in the energy levels of the 6s, 5d and 4f orbitals
3. the near degneracy in the energy levels of the 5f, 6d and 7s orbitals
4. the near degneracy in the energy levels of the 5d and 4f orbitals

2006-12-11 10:53:30 · 1 answers · asked by csu0811 1 in Chemistry

Which of the following Lewis acid-base reactions are not Bronsted acid-base reactions ?


a) Ag +(aq) + 2NH3(aq) = Ag(NH3)2 +(aq)

b) 2HCl(aq) + Ca(OH)2(aq) --> CaCl2(aq) + 2H2O(l)

c) CCl3COOH(aq) + H2O(l) = CCl3CO2-(aq) + H3O+(aq)

d) BF3(g) + (CH3CH2)2O(l) --> (CH3CH2)2OBF3(l)

2006-12-11 10:53:28 · 2 answers · asked by WhoIsToby 2 in Chemistry

Which of the following are true statements for the given compound in aqueous solution ?


a) HBr : A Bronsted acid and a Lewis acid

b) HCN : A Lewis acid, but not a Bronsted acid

c) CH3COOH : A Bronsted acid, but not a Lewis acid

d) Fe 3+(aq) : A Lewis acid, but not a Bronsted acid

e) C6H6 : Neutral, not an acid or base of any kind

2006-12-11 10:53:08 · 1 answers · asked by WhoIsToby 2 in Chemistry

2006-12-11 10:52:50 · 2 answers · asked by Chrisbees 1 in Chemistry

2006-12-11 10:52:20 · 5 answers · asked by Anonymous in Chemistry

In order to determine the mean weight of bags of chips filled by its packing machines, a company inspects 50 bags per day and weighs them. In the example, the population is,
a, the 50 bags inspected each day
b, all potato chips produced by the company
c, all bags of chips produced by the company
d, the weight of the 50 bags inspected

2006-12-11 10:52:00 · 4 answers · asked by Eugene D 1 in Mathematics

I think these are the REDOX equations:
5) As2O3 + Cl2 + 3H2O >>>> H3AsO4 + HCl (<--done, is it right?)
6) Cu + HNO3 >>>> Cu (NO3)2 + NO + H2O
7) K2Cr2O7 + s + H2O >>>> KOH + Cr2 O3 + SO2

2006-12-11 10:51:54 · 5 answers · asked by truckin_90 2 in Chemistry

2006-12-11 10:49:58 · 8 answers · asked by MrZ. NiiCk JoNaS!i!i! 2 in Mathematics

2006-12-11 10:49:49 · 1 answers · asked by Sid90 2 in Engineering

2006-12-11 10:47:15 · 26 answers · asked by MrZ. NiiCk JoNaS!i!i! 2 in Mathematics