# Posts by Beth

Total # Posts: 844

chemistry
Ammonia gas and carbon dioxide gas react to form aqueous urea (NH2CoNH2) and water. What volume of ammonia at 25 degrees celcius and 1.5 atm pressure is needed to produce 500 g of urea?

history
Assess the presidency of Thomas Jefferson. Do his actions in office coincide with his political philosophy?

Physics
first part, use a=rw.. so a=9.8(.227)

chemistry
The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)

physics
A block of mass 12.0 kg slides from rest down a frictionless 35.0° incline and is stopped by a strong spring with k = 1.50 104 N/m. The block slides 3.00 m from the point of release to the point where it comes to rest against the spring. When the block comes to rest, how ...

Chemistry
Does the aufbau principle apply to radioactive isotopes?

Chemistry
Would the molecular ratio of the equation 4Na + O2 = 2Na2O be 4:2?

Chemistry
What is the molecular ratio of the following equation? HNO3 + KOH = H2O + KNO3

Chemistry
What is the molecular ratio in the following equation:H2O + SO3 = H2SO4

Hey how do you turn 5/8 into a decimal??

AP Chem
The energy change H associated with the reaction NBr3(g) + 3H2O(g) -> 3HOBr(g) + NH3(g) is +81 kJ/mol rxn. These bond energy values might be useful: O-H 459 kJ/mol; N-H 386 kJ/mol; O-Br 201 kJ/mol. The strength of the N Br bond is 1. 4 kJ/mol 2. 465 kJ/mol 3. 66 kJ/mol ...

AP Chem
Consider the reaction 2 Al2O3(s) -> 4 Al(s) + 3 O2(g) . H = +3339.6 kJ/mol What is the change in heat when 0.455 L of a 3.60 M Al solution reacts with excess O2 ? 1. -685 kJ 2. -21,962 kJ 3. -1368 kJ 4. -2738 kJ 5. -5477 kJ 6. -26,521 kJ 7. -424 kJ 8. -1695 kJ

AP Chem
A student conducts an experiments to determine the enthalpy of neutralization for phosphoric acid reacting with sodium hydroxide. The student combines 25.0 mL of equimolar solutions of acid and base, both having an initial temperature of 22.5 degree C, in an open polystrene ...

social studies
Does technology make it more or less likely that the U.S. will return to it's old policy of not taking part in world affairs?

social studies
why is the Northeast coast so crowded with cities?

What is the meaning of seperation of powers

calculus
the graph of f(x) passes through the point (0,6). the slope of f at any point P is 2 times the y-coordinate of P. find f(1)

Math
-243/20 there is nothing more simple than that unless it's a decimal

Math
not sure about the question but maybe 9990 1 and 9990 5 and 1998 10 and 999 sorry if this was the wrong idea

Chem
If 20.0g acetylene is allowed to completeyl react with o@ how many g of O2 are reacted? 2C2H2 +5O2----4CO2 +2H20

Physics
How did you get that?

Chemistry
The Ksp of aluminum hydroxide is 5 x 10 -33.At what ph foes Al(OH)3 just begin to precipitate in a 0.15M solution of AlCl3?

math
how do i convert 0.79 to a fraction

Physics
Show that the pressure P of a gas can be written as: P= 1/3* p* v^2

need to find a place that has no culture so I can write an essay about it

General Chemistry
Given 115 grams of Na2SO4 find: a. the # of moles in sodium sulfate b. the # of moles in sodium ions Please explain all work and fully explain where each # came from. Thanks.

elementary math
What is half of one and a half cups?

history
what were the political and social outcomes of the end of the Vietnam War?

medicine
What is the main difference between a stem cell and a cancer cell? A. A stem cell grows at a faster rate than a cancer cell B. A stem cell obeys signals to stop growth, but a cancer cell doesn't C. A stem cell is usually external; a cancer cell is usually internal D. A ...

medicine
A patient was admitted in an alternating state of mania and despair. What diagnosis does this statement describe? A. Obsessive-compulsive disorder B. Bipolar disorder C. Posttraumatic stress disorder D. Anxiety I'm not sure if it's B or D

medicine
A patient has unrealistic thoughts and behaviors despite an awareness that they're inappropriate. She's experiencing A. Phobia B. paraphilia C. panic attack D. obsessive-compulsive disorder I think it's D

Chemistry
Ah, I see what you are talking about. OCH3 is above the CH ________________________ OH O is above the CH Also OH is under the CH ________________________ OH is under the C ___________________ CH3 O is above the CH ____________________ Br is above the C OH is under the C ...

Chemistry
I would appeciate any help with identifying the chiral carbons, if any, in each of the following compounds: OCH3 2. CH3--CH--CH3 OH O 11. CH3--CH--C--CH3 OH 12. CH3--C--CH3 OH CH3 O 15.CH3--CH--C--CH3 Br CH3--C--CH2--CH3 OH thank you.

Chemistry
yes, it is tetrahydrocannabinol. I had put because OH is acidic it would be an example of an aromatic alcohol.slightly acidic. also phenol and carbonic acid. Thank you for letting me know it is only an ether and a phenol.

Chemistry
I have a lot of questions on identify(ing) the functional groups in molecules. I am not sure how to go about finding these out.The first question is THC. How do I go about knowing the functional group of this molecule? Thank you.

Chemistry
Does anyone know the condensed structured formula in the following reaction: a.CH3--CH2--CH=CH2+HOH-->H+ Thank you.

Chemistry
Thank you. On the second one I forgot to put an O--CH3 over the CH O--CH3 CH3--CH2--CH--CH2--CH3 ___________________ Does anyone know the functional group of the following? Thank you. OH CH3 CH3--C--CH2--CH--CH3 CH3

Chemistry
Are these an alcohol, phenol, an ether or a thiol. CH3--CH2--CH2--SH CH3--CH2--CH--CH2--CH3 Any help is appreciated, I am trying to get the hang of this.If I know these two, I believe I will be able to do all the other ones I have to. Thanks.

Chemistry
I do not have any table of functional groups. I am out of the city w/o a textbook visiting an ill parent. I will look online. I think I have it though regarding functional group. Any OH-C bond is an alcohol. O would be ether due to C-0-C bond. C-SH bond would be thiol. But I ...

Chemistry
Ok, it looks good then? Thank you for looking it over. Do you know where I would be able to receive online assistance with drawing structures? Thank you.

Chemistry
Draw the condensed structural formula for ethylbenzene, 1,3 dichlorobenzene,1,2 and 4-trimethylbenzene ? Any help would be appreciated, thank you I also was wondering if anyone could let me know if I am going in the correct direction with this question> Acetylene gas reacts...

communication
I think it is a

chemistry
Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2(s) = Pb+2(aq) + 2Cl-(aq). If a solution has a current value of Keq of 1.2 x 10-2, which statement is true?

algebra
The answer is D. The sqrt of 16 is 4. The sqrt of 4 is 2.And just keep the sqrt of (2) the same.(:

math
64.93 You do pythagorean theorem. a2+b2=c2

Algebra
I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

Algebra
I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

chemistry
I don't understand how we can know the total moles of solution if the question doesn't specify what the aqueous solution is. Do we always assume its water??

grammar
The role of education plays a big part in financial planning. The role of education also helps you in learning basic math skills in order to better your finances. The whole idea is to help you in becoming a more responsible adult. With effective resource planning organizations...

college
FIND THE VERTEX THE LINE OF SYMMETRY THE MAX OR MIN VALUE OF THE FOLLOWING F(X)= -X^2+10X+5

chemistry
15.0g of each reactant is taken,determine which mass is limiting and calculate the mass of each product: Al(s)+HCl(aq)-->AlCl3(aq)+H2(g)

Conflict Management
Name at least 3 Passive aggressive groups and behaviors in society I was thinking the KKK, Civil Rights Movement, and disgruntled workers in the workplace. Any other thoughts would be greatly appreciated! Thanks :)

Reproduction
What would the biological effect of severing the portal blood vessels in the stalk of a pituitary gland? Would the release of hormones by the posterior pituitary gland be affected by severing the portal blood vessels?

Chemistry
Please heellppppppppp!!!! How do you expect the following series of compounds to compare in behavior in the two tests?(Sn1/Sn2 reaction) CH3-CH=CH-CH2-Br CH3-C=CH-CH3 ! Br CH3-CH2-CH2-CH2-Br Please help me answer this question, I really don't understand and don't know ...

MATH
Count the sides.Or check the size

Communication Studies
These are good ones! Thanks for the suggestions! :-)

Communication Studies
Give one example of a situation in which speech performance may be impaired. I was going to say background noise, but I believe that the teacher is looking for a performance error. Thanks!

Communication Language Studies

Communication Language Studies
Do you think this would be an appropriate answer to the question? Specialist vocabulary is necessary under certain circumstances in order to communicate among people who understand and are expected to because of their profession.

Communication Language Studies
Is specialist vocabulary necessary, or just the product of history?

physics
Four 6.0 kg spheres are located at the corners of a square of side 0.70 m. Calculate the magnitude and direction of the gravitational force on one sphere due to the other three.

chemistry
If you are given a mass of sodium lactate, NaCH3CHOHCO2 which is added to ---ml of a ---M solution of lactic aid, can you please just give me the equation

Accounting
Go to Table 10-1 which is based on bonds paying 10 percent interest for 20 years. Assume interest rates in the market (yield to maturity) decline from 11 percent to 8 percent: A. What is the bond price at 11%? B. What is the bond price at 8%? C. What would be your percentage ...

AP Chemistry
An aqueous sulfuric acid solution containing 571.6 g of H2SO4 per liter of solution at 20°C has a density of 1.3294 g/mL. Calculate (a) the molarity, (b) the molality, (c) the percent by mass, and (d) the mole fraction of H2SO4 for the solution. (MM H2SO4 = 98.08; MM H2O...

geometry
20.45 mph solution: 30ft X 1 mi X 60 S X 60 min = 108000 108000/ (1s X 5280 ft X 1 min X 1hr) = 20.45 mph

French
Could you please check and correct this for any spelling or grammar problems. Thanks! PAST 1.Quand j'étais jeune, j'ai eu des cheveux blonds. 2.Ma soeur, Marissa, et moi avons joué ensemble tout le temps. 3.J'ai sucé mon pouce. 4.J'ai port&...

history1301
I need some History help! Its US History. OK first of all I would like to post the question I need help answering. I also would like to post another question that I have answered and see if it was the right answer that I came up with. thanks for the help! Here is the question...

texas history
Mr bob I sure appreciate your help, and that helps me understand it versus just giving the answer! I knew it had something to do with the cotton fields!

texas history
what about this part? How and why was smuggling such a lucrative proposition in the eastern portion of the state?

texas history
thank you SOOOO much!

texas history
I thought about that, but I was kinda scared to post that lol, I didn't know for sure if that was the answer, and if it wasn't I didn't want to offend anyone. do you have a link at all that I can use for that?

texas history
so would the answer be texians? I am so confused!

texas history
Need help with texas history -what were the illegal immigants called? I really need help! I am doing a treasure hunt where our teacher gave us questions to answer. I have answered them all except one and I cannot find it at all. we cannot use wiki as a source. if you have an ...

what is doubles, near doubled, and make ten strategies?

Algebra
the domain will be all real numbers because any number squared is positive

basic chem conversion
I have 760 mm Hg at 10 km. How do I convert this to atms? I know that 101.3 atm is equal to 760 mmHg but i don't know how the 10 km will affect this.

social studies
Search for roman empire religion culture war conflict in google and go to the first link

Math
thats the same as 6+4x=1 take out a 2 : 2(3+2x)=1 divide each side by 2: 3+2x=(1/2) take 3 from each side: 2x= (-5/2) then divide each side by 2 to get x: x= -5/4

ms. sue
please help We're going over hybridization right now, like sp3 and stuff. But I don't understand how you got it at all. Can you please tell me the hybridization for these two examples I made up and explain how you got it thanks 1. NH3 2. PF5

science
rolling friction- riding your bike or skateboard sliding friction-cartlige against your bone static friction- you trying to push a heavy bookcase fluid friction- when you ride your bike through the air (this is when an object moves through anything flowing. yes, air counts)

Chemistry
We're going over hybridization right now, like sp3 and stuff. But I don't understand how you got it at all. Can you please tell me the hybridization for these two examples I made up and explain how you got it thanks 1. NH3 2. PF5

MATHS
I meant 2098 I made a mistake

MATHS
3524 kg just double the mass of the truck when its half full

Biology
Enzyme is a protein that is a biological catalyst that increases the rate of a reaction. All enzymes are protein but not all proteins are enzymes

Physics
A ball is thrown directly downward, with an initial speed of 7.40 m/s, from a height of 31.0 m. After what time interval does the ball strike the ground? I thought it would be 31 m / 7.40 = 4.18 seconds, but it's the wrong answer.

Physics
The minimum distance required to stop a car moving at 46.0 mi/h is 39.0 ft. What is the minimum stopping distance for the same car moving at 80.0 mi/h, assuming the same rate of acceleration? Can I do a proportion or is this totally different?

Mass Communication Studies
What legal issues must be considered when digitally manipulating images downloaded from the Internet for use in a new book?

science
the doctor orders 0.200 mg of atropine im for you. the concentration recorded on the premixed syringe is 0.00100 g of atropine im per 10.0 mL of solution. how many mL should the nurse administer?

science
you have a daughter that weighs 11.0 kg. theh dosage for ibuprofen is 10.0 mg for every kg of body mass. the bottle has 20.0 mg of ibuprofen per cc of suspension. how many cc of suspension should you give her?

Communication Law Studies
Can publishing photos of people who are unaware that they are being taken can hold legal binding in court? If so how and under what statutes?

college
yes it is just posted the class for it. HCR/230 - CLAIMS PREPARATION II: FOOTING THE BILLS (AXIA)

college
Post a 200- to 300-word response to the following: Compare cost control strategies of employer-sponsored health plans, in which employers buy from insurance companies, to self-funded health plans, in which employers cover costs of benefits. Include the following factors: o ...

Maths
What is the reference angle for (27 pi)/5?

Communication Studies
Thanks for your insight to this question!

Communication Studies
Ah well first of all the person who goes to prison is found guilty of a crime. The hitting someone occurence could happen for any stupid reason. Your thoughts? How can I logically answer this question? If people feel that they must hurt or harm a person, what do the people do ...

Communication Studies
So to keep from feeling guilty they use a scapegoat or excuse?

Communication Studies
The question is what do they do not to feel guilty? They should feel guilty, but some people don't. Is there a logical answer to this question? Thanks!

Communication Studies
If people feel that they must hurt or harm a person, what do the people do to keep from feeling guilty about hurting that person?

Communication Studies
Thank you! I will check that out!

Communication Studies
What is a movie that shows an example of gender miscommunication? Are these characters on the margins of society, as depicted in the film, or are portrayed in a stereotyped way or as people who can be more honest because they are "marginal" people, those not co-opted...

1. Pages:
2. <<Prev
3. 1
4. 2
5. 3
6. 4
7. 5
8. 6
9. 7
10. 8
11. 9
12. Next>>

Post a New Question