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Posts by Stacey

Total # Posts: 364

math
Why is number theory important in mathematics?

science acids and bases
what can you tell about the equations 2 P2O5?

Language Arts
....Poets, whoknow how to express so many beautiful things, are some of the most miserable people on the planet... Why is this Ironic?

Language Arts
Skiing was canceled on account of snow. Why is this Ironic?

computer networking
Mobile Training is a small training firm that offers mobile classrooms that come to your company and teaches office software,such as word,excel,QuickBooks,etc. You're asked to design a network for use in a training environment. it should be mobile,easy to set up,and simple...

chemistry
At what temperature (from your graph) do KNO3 and NaCL have same molar solubility?

Chemistry
Write a balanced equation showing how you could prepare each of the following salts from an acid-base reaction: KNO3, NaBr, CaS.

CHEMISTRY
HOW MANY MG OF C2H4 MUST BE USED TO PRODUCED 875J OF HEAT

CHEMISTRY
WHAT MASS OF WATER CAN BE PRODUCED FROM 30.0G OF AMMONIA

math
A rectangular sheet of aluminum foil is 50 centimeters long and 20 centimeters wide, and weighs 5.4 grams. Find the thickness of the aluminum foil in centimeters

physics
A hammer falls from a scaffold on a building 50.0m above the ground. Find its speed as it hits the ground.

Math
find the other endpoint of a line segment with the given midpoint and one endpoint 0,0 and 4,-2

physics
Answering to drwls late, but 4.23m, the m is mass of m but it's 4.23 times greater. Hence, 4.23m.

accounting
Journalizing in a General Fund: Modified Accrual Basis: Issued $20 million in long-term bonds. Acquired several tracts of land at a total cost of $4million, paying the entire amount in cash.

sociology
I am in week 7 from Rasmussen as well in Nov 2013 still same question.

sociology
Me too, I am way beyond confused... Help would be greatly appreciated. Brenda, I bet its the same class and school lol.

Physics
The waves from a radio station can reach a home receiver by two paths. One is a straight-line path from transmitter to home, a distance of 21.0 km. The second path is by reflection from the ionosphere (a layer of ionized air molecules high in the atmosphere). Assume this ...

english
I wrote this for my class and I just want to make sure I have it right. The role of education plays a very big part in the financial world. It's a big part of becoming successful. It can help with learning basic math skills in order to better your finances. It can also ...

gym
ADOETEMED with five blanks. It is a phase. Help!

chemistry
Wrtie the equilibrium constant expression for the reaction of NH3 with water. the OH- concentration of .050 M ammonia, NH3, is 9.5 x 10^-4 M

chemistry
An unknown weak monprotic acid with the general formula HA has a Ka=5.5 x 10^-7. what is the value of the equilibrium constant that describes the following reaction? A- +H2O = HA +OH-

Math PIZZAZZ
Why did the kangaroo see a psychiatrists

Chemistry
An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d=1.114 g/mL; M=62.07 g/mL) and water (d=1.00 g/mL) at 20 degrees C. The density of the mixture is 1.070 g/mL. Expreess the concentration of ethylene glycol as volume percent. I've tried ...

Chemistry
A baker uses sodium hydrogen carbonate as the leavening agent in a banana nut quickbread. the baking soda decomposes according to two possible reactions. 1. 2 NaHCO3 = Na2CO3+H2O+CO2 2. NaHCO3+H=H2O+CO2+Na. calculate the volume in mL of CO2 that forms at 180 degrees C and .975...

chemistry
on a particularly hot 30 degrees C day near the seashore the partial pressure of water vapor in the air is .0303atm. given that the atmospheric pressure is 1 atm and the composition of dry air is 78% N, 21% O and 1%Ar, what is the partial pressure of oxygen gas?

Chemistry
No i'm sorry that is not being accepted as the right answer

Chemistry
Find the average kinetic energy per molecule of He at 30 degrees C

managerial eccon
Suppose that a firm is currently employing 30 workers, the only variable input, at a wage rate of $60. The average product of labor is 30, the last worker added 12 units to total output, and total fixed cost is: $3,600. what is the averge variable cost?

Business Research for Decision Making
1. Decide on the type of tool or instrument you think would be effective given your topic on if there is no relationship between customer relationship and customer loyalty, explain why this type of tool would be optimal, and point to research which has used similar tools. 2. ...

math
How many one-to-one correspondences exist between two sets with A) 8 elements each? B) n-1 elements each?

math
these are the problems to convert to base 10. 1. CDXLIV 2. 432 then has five next to it 3. ET0 then has twelve next to it 4. 1011 then has two next to it 5. 4136 then has seven next to it

college
converting to base 10

10th grade
When using a calorimeter with two chambers what are the possible sources of error?

10th grade
3x-2-x=7-x

chemistry
what is the theoretical value for the M of acetic acid in vinegar if the vinegar is 5% acetic acid by a % mass value. Additional info: the experimental M of the acetic acid in vinegar is 0.80M Thank you!!

grammar
Identify the adjective clause in the following sentence. The book that is on the floor belongs to Johnny.

English
Identify the adjective clause in the following sentence. The book that is on the floor belongs to Johnny.

chem
Oh Dr.BOB...I am so lost..and sooo frustrated. Can you explain to me how to balance a chemical equation one more time please. Thanks Stacey

chem
Hi..Can you balance these 4 chemical reactions for me please: 1) Cu + 2Ag NO3 2) Zn + Al(NO3)3 3) Cu + ZnSO4 4) Ca + 2HCI Also will a chemical reaction occur in any of these? Thanks so much Stacey

Chem
what is the oxidation number on each of these ions - Ag2S + 2Al - 6Ag + Al2S3 Can you show your work? Thanks a bunch:)

Physics
A ladder 10-m long and weighing 50 N rests against a smooth vertical wall. If the ladder is just on the verge of slipping when it makes a 50 degree angle with the ground, find the coefficient of static friction between the ladder and the ground.

chem
How many moles of base are needed to neutralize 2 mol of acid for HNO3 + KOH - KNO3 + H2O?. Can u show your work please:) Thanks a bunch

math
How would you simplify this rational expression: Can you please show me the steps on how you get the answer thank you. 2y+1 over y-2 times (4-2y)

Chem Dr Bob
So your saying that sulphuric acid is used to test lead in water?

chemistry
Please I need help...I have been trying so hard to finad this answer... Suggest a test chemical that can be added to the water sample to precipitate the lead(II) ions. please show a chemical eqaution for the formation of the precipitate. Thank u so much:)

Chemistry
If 0.00002 mol of Na2S is the limiting reactant...how do I calculate the maximum mass of precipitate formed?

Math Check
I don't understand how you got to that answer

Math Check
y^2-5y over y^2-7y+10 What did I do wrong.. for my answer i got (y+5) over (y-2) and the correct answer is y over (y-2)??? How would you do this problem? 3x over x+1 = ? over x^2-x-2

math check
Simplify each rational expression. 3a(a-4)^2 over a^2(a-4) I don't understand how the answer would be 3(a-4) over a because the a-4 would cancel out??? 4-y^2 over y^2-2y once I simplify I get (2-y)(2+y) over (y-2)(y+2) I don't understand how the answer is -(y+2) over y...

Math
Simplify each rational expression. Can you please show me the steps on how you got the answer. Thank you (over means there is a line under the first expression and then the second expression is placed underneath the line) 2c^2-c-1 over 2c^2+3c+1 8c^2+2c over 4c+1

chemistry
why does chlorobenzene have a hogher bond energy than 1-bromobutane?

math
What does it mean to factor a polynomial?

Chem
Can you show me the structural formula, NOT molecular formula for C3H6 = Cl2 (g) - C3H6Cl2 Please...:)

Chemistry
Can you draw a structural formula illustrating the complete combustion of ethanol? Please...It is confusing to me!

Chemistry
Why is "4-heptonol" an incorrect IUPAC name? What is the correct name?

PLZ HELP!!!! communication
So I may not be correct, but I would say that the answer is False. I say that it is false because it is not an effective form of Communication. Selective listeningis when a person hears another but selects to not hear what is being said by choice or desire to hear some other ...

biology
A good website is called Animla and plants cells and shows pictures and is very informative. It will not let me type in the web address, but it is called animals and plants. it is a site from Purchon so add the 3 w's and the . com then slash biology slash cells. That is ...

Social Studies
The Roman alphabet, religion, mythology, and latin alphabet were borrowed from the greeks.

math
YEAH THANK YOU

math
8 / (4 / (-28)) = -56 I don't understand why? what are the steps to solving this problem?

Chemistry
Three naturally occurring allotropes of carbon are known to exist: amorphous, graphite and diamond.

chem
Can someone show me the structural formula (lewis diagram) for ethene??? Please

Chem
Determine the concentration of a dioxin solution whose percent absorbance is 0.40% This is the resulting: Absorbance Dioxin 0.64 5.5 0.76 6.3 1.0 8.0 But why can't I figure out the concentration whose percentage is .40%?

Chemistry
Determine the concentration of a dioxin solution whose percent absorbance is 0.40%

Chemistry
The volume of acetic acid in a sample of 500mL of vinegar is determined to be 1mL. What is the v/v percentage of the vinegar?

Chemistry
determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks

Chemistry
Can you determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks

Chemistry
The following reaction represents the decomposition for water: 2H2O - 2H + O How many molecules of hydrogen are produced from the decomposition of 12.2 grams of water into its elements?

vocab cultures & dev
a sentence with the word communist in it

vocab cultures & dev
sentence with the word cultural diffusion in it

vocab for cultures * dev
sentence with the word & meaning with commune

Vocab for cultures & devel
sentence for homogeneous

History
I have to write a five paragraph essay on the benefits of US expansion and the positive effects that it had on the philippines, cubans, china, and native americans. I can't figure out how to start it.

Math
In a series of three plays, a college football team had the following results:loses 5 yards, gains 8 yards, and loses 7 yards. Find the net gain (or loss) after this series. The answer is suppose to be 4. ( I keep getting -4)

5th grade
(8+7)x3x2=

Algebra
can you please answer my question h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 7 1 9 7 2

english
Identify the adjective clause in the following sentence. The book that is on the floor belongs to Johnny.

Communications
I need guidance im kind of confused

Communications
-You are "sending" a message that explains the interpersonal communication model as if you (as an adult) are talking to a fourth grade student. (Your partner will "act" as the fourth grade student, approximately nine years old.) -You are "sending"...

Math
Sasha wants to take the train to visit her friends over the holiday. Amtrak's train 29, the Capital Limited, leaves Union Station in Washington DC at 4:05 p.m. Eastern Time. It arrives at Chicago's Union Station at 8:45 a.m. Central Time the next morning. Where will ...

geometry
do you know how to unscramlbe MATH words

History
Why is studying the history of Western ideas helpful for understanding your ideal of social (and/or, political) and aesthetic developments today?

math
the goal is to get "g" by itself on one side. In order to do this you would take 11 and subtract it from the side it is on, then do the same to the other side of the equation. So 16-11= 5. So the new equation is g=5.

AED 200
What are the fundamental differences between Western philosophies and Native North American ways of knowing? (Generally, how does each culture view the world and education?) How can you incorporate seemingly different ways of knowing in your curriculum? When responding to your...

English
Literature: Explain how the historical context of a work can impact that work?

English
Explain how the historical context of a work can impact that work?

math
3 lights started at the same time..1st blinks at 5 seconds, 2nd at 6 seconds and 3rd at 4 seconds...how often will they blink at the same time

math
Why do graphs show "other"?

algebra
im having a hard time solving a problem that is 9x+9y=-18 do you think you can help me with this problem

french
can someone read my story that knows french well? can you please check it for mistakes. Here is the english and french version of it. Jean Paul n'a pas aimé partager ses choses. Par exemple, un jour il est allé à la plage. Il a apporté trois ...

french
I fixed the mistakes eariler but I have some questions: Sra: ***In the first sentence: n'étaient pas heureux qu’il essayait d'agir = do y ou want to use the Past Subjunctive after "n'étaient pas heureux qu'il...? In the first sentence i ...

french
also, how do you say when it was time for algernon to leave with his mother........ quand il y a le temps pour algernon pour partir, ?

french
could domeone check over my work to see if it makes sense are correct any error I might have? thank-you. Ses parents n'étaient pas heureux qu’il essayait d'agir comme un adulte. "Vous êtes seulement jeunes une fois" ils lui ont dit. Ses ...

mathematics
Factorise copletely 1) 2ax+3ay-2bx-3by 2)5x^2-20 3)3x^2+4x-15 is the ans to this one = 7x^3-15

math
draw a picture using picture using 4 quadrilaterals, 5 pentagons, 6 hexagons, and 8 octagons Responses

math
make a picture picture using 4 quadrilaterals, 5 pentagons, 6 hexagons, and 8 octagons

math
picture using 4 quadrilaterals, 5 pentagons, 6 hexagons, and 8 octagons

Grammar
1.B 2.A 3.A 4.D

Science
How do scientists know what the interior of the earth looks like when we have never seen it?

Science
How fast do sound waves travel through water?

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