dan

This page lists questions and answers that were posted by visitors named dan.

Questions

The following questions were asked by visitors named dan.

Assuming the molor mass of paraffin is 280 g/mol, calculate the # of mols of paraffin burned. Then calculate the heat of combustion of paraffin in kJ/mol I don't think I can help you with the information provided. We need an equation (although we can wing...

population of wales Check this site for the population of Wales plus a lot of additional information about this part of the United Kingdom. http://worldatlas.com/webimage/countrys/europe/ukw.htm

energy needed to change a material from a liquid to a gas... its 3 words Is this for a puzzle? how many letters in each word would help. Try heat of vaporization. 18 letters

Facts about Georgia. How do we persuade peolpe to come to a colony in the early days? Thank you In Georgia, many were in prison in England: They were given a choice to stay in prison or go to the colonies. I have that. What I need to do is create an adver...

how do you write an evaluation? What kind of evaluation are you referring to? Job evaluation? Evaluation of literary work? Or what? If you're referring to a literary evaluation, here's a webpage that may help: http://grammar.ccc.commnet.edu/grammar/compos...

How can I make this better? The prompt is to explain how the author uses narrative voice and characterization to provide social commentary in "The Other Paris" To find story search 2003 AP English Literature and composition free-response questions #2 Mavi...

Is a glass of water equal to 30 grams or 300 grams? More likely 300 grams. 30 grms would be nearly two tablespoons.

Is a glass of water equal to 30 grams or 300 grams? http://www.calorie-count.com/forums/post/20619.html A "glass" of water could designate any size. If you mean a cup of water, <B>Lance</B>'s answer should be sufficient. I hope this helps a little more. T...

what is the ratio of the circumfrence and diameter of any circle? pi, which is 3.14159...

solve the system by graphing x+y=4 y=2x+1 I think these are the kind that you take equation #1 and rewrite it as y = -x + 4 and do the table for it plot the dots and connect the line for it. then take equation #2 y= 2x+ 1 do the table and do the same and...

How are the ways that the former Soviet Union and China have moved toward market based economies different?

i am confused with this question. what do i need to use in order to solve this question? eliza must fence in a pool area net to a concession stand with 25 m of fencing? what was the dimensions which will maximize the pool area?

Tungsten has been used to make light bulb filaments since 1908. The melting point of tungsten is 3422 °C and the heat of fusion is 35 kJ/mole. Calculate the entropy change associated with the melting of one mole of tungsten.

how many beats in a bar

can someone check my essay now thanks Choose apiece of literature you have read and describe how it has affected you. For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. We think of the buying a...

find the constant of variation for each direct variation. 10y=13x and f(x)=4.5x and x+y=0

Ch3Ch2Ch2MgBr + H2O = I just need to complete the reaction not balance it.

I have a project due on the Colo Company can anyone help figure out the worksheet

Explain the politics of the consensus and explain the pragmatic political measures Eisenhower used to manage the economy?

It will give me a sense of accomplishments. is this a grammatical correct sentence?

I need help.. i need to make 4 sentences.. With... (Miro) (Miramos) El, la, al, a la empleado video carpeta profesora I don't care how u make them i just need help..

according to some students what is the true purpose of homework

how do i get the degree for (tan+1)(tanx-2)=0 in the interval of 0 is less that or equal to x and x is less then or equal to 360

I need to balance hydrolysis equations for the following salts,copper(II) nitrate, sodium tetraborate, sodium bromide, calcium sulfite, potassium sulfate,potassium chloride, sodium acetate, and ammonium bromide.

A 10.0 mL sample of 3.00 M KOH(aq) is transferred to a 250.0 ml volumetric flask and diluted to the mark. It was found that 38.5 ml of this diluted solution was needed to react the stoichimetric point in a titration of 10.0 mL of a phosphoric acid, H3PO4,...

A mixture of hydrogen peroxide, H2O2, and hydrazine, N2H4, can be used as a rocket propellant. The reaction is: 7 H2O2(g) + N2H4(l) ® 2 HNO3(aq) + 8 H2O(l) a) How many moles of H2O2 react with 0.477 mol N2H4? [1] ___________ b) How many grams of HNO3 can...

ok heres my question, nitrogylcerin decomposes: 4c3h4(no5)3 --->12co2(g) +10h20(g)+6n2(g)+02(g) whats is the max pressure that a 10.0L container will be able to withstand if 5.00 Nitroglycerin decomposes at temp of 1250c mm of nitroglycerin =227 g/m i got...

what are some source errors in my experiment? determine absolute zero. We attached a capillary to a ruler with a thermometer. placed it in water and heated. I recorded and my partner did the readings. source errors: -partner didn't stir the water before h...

hi, Im not sure how to explain this well but here goes. Im doing a oxidization/reduction reaction to determine the charge of an element. charge is n formula n=a/b Problem: 0.6215 g sample of nickle metal was dissovled in 100.0ml of fe 3+ Note for the form...

Identify the conic section whose equation is given: x2 + 10x + y2 + 12y = 60

can you check if answer is right? a^2b -c when a=4 b=8 and c=12

1. Jina purchased a prepaid phone card for $15. Long distance calls cost 11 cents a minute using this card. Jina used her card only once to make a long distance call. If the remaining credit on her card is $11.04 , how many minutes did her call last? I go...

Justin's gas tank is 1/4 full. After he buys 9 gallons of gas, it is 5/8 full. How many gallons can Justin's tank hold? How would i set that up?

The length of a rectangle is four times its width. If the perimeter of the rectangle is 50cm. find its area. how do i set this up?

There are two machines that produce aluminum cans. The newer machine can produce 7200 cans in 200 minutes. It takes the older machine 300 minutes to produce that many cans. If the two machines work together, how long will it take them to produce 7200 cans...

how do i simplifu 2r^2 +r +r^2 and 3(r+s) - 2r

give an example of a chemical formula.

x/-2.5<-1.54 solving ineualities with rational numbers'---how do i do this?

w+9/14 greather than or equal to 5/14

mr conner's students made kites in science class. he brought a 500-yd bolt of twine to tie to the kites. if he wants to give each student a piece of twine 331/3 yards long. what is the maximum number of pieces of twine mr. conner will be able to make from...

7.3xgreater than or less than -87.6

why is sewage a problem and how have human activities contributed to this problem?

can you name one terrestrial resource issue?

An insulated beaker with negligible mass contains liquid water with a mass of 0.255{kg} and a temperature of 76.0{C} How much ice at a temperature of -19.9 C must be dropped into the water so that the final temperature of the system will be 32.2? Take the...

An engine goes through the following cycle with 2.60 moles sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III. an adiabatic compression from point c to point a. We...

how can the government be involved in conservation efforts?

how will thinking critically influence the way I read? how will thinking critically influence the way I write? how will thinking critically influence the way I process information?

a sperical water tank is being filled with the diamiter of 10 feet how much water does it hold half full use 3.14

Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.

How do you convert polar coordinates to Cartesian coordinates? And vise versa.

Convert the polar equation r-3cosx = 5sinx in Cartesian equation form.

please help 3(n+1)=5(n-3) thank you

A drawing of diagonals for four different polygons is listed below. What is the number of diagonals for a 100-sided polygon?

Can someone help me with this?? Simplify... ã-45 x ã-20 = is it?? ã-45*-20 ã-900 3ã-30

Thanks Reiny How ado I simplify? (3iã5)^

Examine several newspapers and magazines and describe at least three examples of functions that appear. What is the domain and range of each function?

A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n – 1. Is this true? If so why?

Question from the Classroom: 10 A student claims that the equation Ö(-x) = 3 has no solution, since the square root of a negative number does not exist. Why is this argument wrong?

How do you complete the square by filling in the two blanks so as to produce a true equation. x^2 - 12x + ---- = (x - -----)^2

Solve by applying the quadratic Formula: all radicals should be simplified as far as possible. Show your work. a^2 -12a + 35 =0

I was wondering if my answer is right. Let f (x)=(x+10)^2. Find x so that f(x)=72 (x+10)^2=72 x^2+20x+100=72 x^2+20x+28=0 x=(-20+-sqrt(400-112))/2 x=-10+6*sqrt(2)

A basketball player has a vertical leap of about 36 in. If the equation d=48t^2 describes his hang time t as a function of his vertical leap d. what is his hang time? Show your work. 36=48t^2 t^2=3/4 t=(1/2)sqrt(3)seconds

what volume would 8g of He at.951 atm and 25c occupy?

Show that x^2+y^2-6x+4y+2=0 and x^2+y^2+8x+2y-22=0 are orthogonal.

A flywheel rotating at 5.3 revolutions per second has an angular retardation of 4/5 radian per second per minute.calculate:(i)its angular velocity after 45 seconds(ii),the number of revolutions it makes in 1 minute, and in coming to rest.

I'm stuck on this one problem. The directions say: Solve the following leaving the sq. rt. in it's simplest form: sq.rt of 33+ sq.rt of 96 - sq.rt of 3 = I think it can't be simplifed---am I correct? (the directions did say that some of the problems can't...

I'm stuck on this one: factoring polynomials from algebraic expressions (and it says you can use the substitution method): 3m^2(2p^2+3)over (x^2+y)(2x-y^2) minus 6m(2p^2+3)over (y^2-x)(2x-y^2)= Do I find the GCF? I get 3m(m-2) over (x^2+y)(2x-y)(y^2-x) ??...

If you have an insulated glass of water at 25 oC containing 10 fluid oz at 25 oC, how much ice would you have to add to end up with a final temperature of 0 oC and no ice left?

If ice were to be placed in a container at a temperature of -2 oC, with a water vapor pressure of 2 torr, you would see a decrease in the volume of solid ice over time.

If this sample of dry ice were to be placed in an evacuated 1.0 L container and allowed to come to room temperature (25 oC), what would the pressure be?

Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your answers completely.) f(x) = 2x^2 + 7x

two planes take off from an airport at the same time and head in opposite directions at 260 mph and 275 mph respectively. in how many hours will they be 1605 miles apart?

An object initially at a temperature of 80 C cools by 1 C in a time of 15 s when placed in a 20 C room When the object's temperature reaches 50 C, what is the average rate at which the object cools?

so im done with everything except fro this question : A(n) 2.3 kg object moving with a speed of 8.6 m/s collides with a(n) 4 kg object moving with a velocity of 8.8 m/s in a direction39.0135◦ from the initial direction of motion mof the 2.3 kg object.What...

Complete the reaction? IF no reaction say so H2O C4H6O3 ====> H2O c) Cu ===== > H2O d) K2O=====> e) 2 NaNO3 + ht →

complete this reaction 2 NaNO3 + ht →

Write a balanced chemical reaction to show the reaction between ammonium and a chlorite? Is this correct? 2NH3 + CLO2 + H2O ⇒ NH4Cl + NH2O2

The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop. (a) What is the time interval during which a vaulter who ha...

The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists un...

The first angle of a triangle is 24 more than the second. The third angle is twice the first. Find the measure of the angle of the triangle.

Suppose that you measured the moment of inertia of the system as I = 5.05 kg-m2. Assume the diameter of the pulley around which you wrap the string is d = 2.5 cm. a) suppose the system is initially spinning at angular speed ωo = 2.05 rad/s. After you drop...

Hello, can you tell me why different colors have different rf values

Sam tosses a ball horizontally off a footbridge at 3.2 m/s. How much time passes after he releases it until its speed doubles?

identify the three key parts of a paragragh. discuss their relationship with one another.

write a brief paragraph about which paragraph was more effective and analyze why this is so from chapter 32 real essays with readings appendix g include a discussion of sentence variety and rythem of the author's writing

A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle? ------------------------------------------ I have a diagram with me...

A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle? Drawing a diagram would help with this question. Thanks.

I'm not sure whether this question is too difficult, or perhaps it is lacking a diagram, but I have been getting no response to this question, something I had not been not expecting. To any maths experts out there, I would absolutely LOVE your help, becau...

Answers

The following answers were posted by visitors named dan.

both of them are able to because they are 35 or older and born in america

For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. I thought of the buying and selling of people, their shipment from one continent to another and the abolition of the trade in the early 1800s....

Two Fair Dice are thrown and the differance is noted.Draw the sample space.What is the probability that ther is no differance.

it would be 9 because the number after the point (decimal) is less than 5.

im not 1 of the pros at answering the questions but i think i can help. y=4/9x-7/9. i got this cuz it has to be y=mx+b. when u move the 9y to the other side of the = it becomes negative and the same goes for the 4x. then you have to divide the -4x and the...

Does this mean no one is able to or no one has had a chance to answer it?

woops i mesed up here's my answer A .120 b 1.51%

question 3: Calculate the density of COCl2, a poisonous gas at 27.0oC and 733 Torr. [3] i got 3.87 g/v

thanks looks like im on track

the formula is given 4c3h4(no5)3 --->12co2(g) +10h20(g)+6n2(g)+02(g)

it was given so we don't have to. I think the teacher is just trying to show us how to use the mole ratios to get partial pressures

here this might help 4 C3H5(NO3)3(l) → 12 CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g) I must have copied it wrong into the browser. sorry...

Heres the simplified version: I need to convert Ni to moles: I have a 0.6215 g sample of Ni that was dissolved in 100.00ml of Fe 3+. Then, 15.00 ml of the sample was taken and titrated. It took 26.48 ml of .0200M Cr2072- to titrate the solution. ] I did t...

I only need help with step 3 We are trying to figure out the charge on Nickel. So we performed titrations. First, 0.6215 g sample of nickle metal was dissovled in 100.0ml of Fe^3+.(acid based) Then, 15.00 ml sample of this solution was taken and titrated....

(4)^2(8) - 12 (16)(8) - 12 128 - 12 = 116 ??

a big one. as one might expect whensomeone moves into you bnackyard with tyechnology youve never seen

well, first, God is someone to be afraid of, although loves and thanked too, for pouring his wrath for sinners on His son who died willingly, saving and covereing the sins of anyone who beleives in Him... (this is because Lincoln was a christian..) other...

thanks and one more thing -4=c-3/6-1-c/8+c/12

it says (3i*ã5)2

Thank you for your help and reminding me there is two answers.

Yes you helped me a lot. Thank you for showing me in steps how to solve this question

i would rate you 3 out of 10

A spherical water tank has a diameter of 10 feet. How much water does it hold when half full (use 3.14 for , and round to the nearest hundredth)?

would you see a decrease in volume

283.5 x .5 + 10 x 1 X (X)=0

i understand but how to i go about solving this that's what i need help in, if that assumption is made.

i don't get this either please help me thanks.

MARVELOUS 1. extraordinarily good; used especially as intensifiers 2. too improbable to admit of belief 3. being or having the character of a miracle UNCANNY of a strange nature; weird; mysterious Example That two people could be so alike was uncanny.

Yes! That is what I am trying to figure out.

OH! Thank you! I did not know it said that. I am having trouble understanding it. thank you! So, does that mean I have to start all over? Did I at least get all the verbs right?

HOW ABOUT THIS? The role of education plays a big part in financial planning (PRESENT). It has been a crucial part of becoming successful with your money (PAST PREFECT TENSE). It will help you in learning basic math skills in order to better your finances...

the rule is this: A prime can be written as a sum of two squares. I hope that helps

OK! I will try going over the site you sent me and try again.. Thanks a lot!

Okay! I hope this is it. The role of education plays a big part in financial planning (PRESENT). It has worked a crucial part of becoming successful with your money (PAST). It will help you in learning basic math skills in order to better your finances (F...

Find out: a) How many grams of lithium are required? b) How many grams of each product can be produced?

The role of education plays a big part in financial planning (PRESENT). It has worked a crucial part of becoming successful with your money (PRESENT PERFECT TENSE). It will help you in learning basic math skills in order to better your finances (FUTURE TE...

CuCl --> Cu+ & Cl- Ksp = [Cu+2] [Cl-] ========================= Cu+(aq) + 2 Cl ‾(aq) ==> CuCl2 ‾(aq) K = [CuCl2 ‾] / [Cu+2] [Cl-]^2 =============== (K) (Ksp) = [Cu+2] [Cl-] times [CuCl2 ‾] / [Cu+2] [Cl-]^2 reduces to: (K) (Ksp) = [CuCl2 ‾] / [Cl-] (8.7 x...

ok I got it now.. thank you very much!!

We used three different color dyes in both alcohol and water. So its the chemical makeup of each color that determines the Rf value?

---------------------- I/ \/ ?? \I I \ rad I I2m diameter I----I I circle I I I / I I\ / I ---------------------- okay... my attempted diagram.. It probably won't show up correctly when i post it, and confuse everyone more... but i thought I'd give it a s...

yup.. it didn't work... it deleted all my spacing.. please ignore the above post.

Thanks for the reply. I'm still stumbling over where point C is. "Drop perpendiculats parallel to the sides of the rectangle until they meet". A diagram would most definately be helpful. Once again, thank you for your help.

I have never owned a credit card. I do not believe in them and I do not plan on ever owning one. I do not know what my credit score is because it usually cost money to get a credit check. However, I believe that my credit score is low, because of hospital...

Thank you so much!! Your explanation was very clear! Thank you for your help!

Since attending Axia College, I am a better writer. I am more concise and more accurate. Therefore, I am a more effective writer. I have learned how to better express myself. I am not the best academic writer or the most prolific, but I can honestly say t...

19. Convert 15 ppm of benzene to mg/m3 at 20 oC and 720 torr Density of a gas is g/L = P(MW)/RT (740 torr x 1 atm/760torr)(78.114g/mole)/ (.0821L atm/mole K)(293K) = 3.16g/L 1ppm =1 L Benzene/106 L of air = 1L ben/1000 m of air = 0.001 L ben/m3 = 0.00316...

I understand how to do the steps. but the wording is different on this problem, that is what I don't understand?

where did you get the 144

correct me if im wrong solve for a = 102 and v = 1249

A = 51.15 V= 638.8

You round down and say 500*3 which is 1500 then go 600*3 which is 1800. The number is between 1500 and 1800.

D. Within 239 to 507 minutes.

@Ms Sue Thanks you make perfectly good sense. You "should" give yourself a pat on the back!

strongly supported claim in science should be regarded as? necessarily true correct, but can always be revised

correct, but can always be revised necessarily true meaningless but fun correct and never needing revision

correct, but something that can always be revised? But can't find the exact answer in text, urrrg!

Exactly, how I answered the question. Would you say this is answered incorrectly in the text?

I'm sorry, I gave the answer, "Granite is more dense than sand." It was marked as incorrect, I feel this must be an error. Thank you once again!

A claim is also said to be falsifiable, in that it could turn out actually to be false, and we know how that might be shown. For instance, "There are no wild kangaroos in Georgia" is a falsifiable claim; if we went to Georgia and found some wild kangaroos...

the answer is apparently number one, and I choose number three as being not falsifiable. I am currently arguing my point and could use some support. My proof that three of the four claims are falsifiable are as follows. My luck may improve or it may not....

Oops I was thinking of 8 times 9 It's 126

is there an equation for this?

its equal to...

because as long as the number(4) is right after the decimal point it doesnt matter how many 0's are in front of decimal or after the 4. think of it in dollar amount 0.4 is 0dollars and 40 cents. .40 is still 0 dollars and 40 cents thus 0.4=.40 if it were...

your welcome! anytime :)

they are parallel....two nonvertical lines are parallel if their slopes are equal and have different y intercepts..

can u explain that a little further steve?

how did u get that?

42 is evenly divisible by both 6 and 7

how do i find the area of the little triangle? Reiny,

so is that the area of big triangle or small?

please show how u got the answer

8x+7=6 (subtract the 7 from left side) 8x=-1 (divide the 8 on both sibes) x= (-1/8)

12(3+y)=5(2y+8)

business A=x business B=2x-20 business C=2x-20+2(2x-20)-200 x+2x-20+2(2x-20)-200=1035 x+2x-20+4x-40-200=1035 7x=1035+20+40+200 7x=1295 x=185 Bus. A pledged $185 million Bus. B pledged 185x2=370-20=350 million Bus. C pledged 350x2=700-200=500million 185+35...

i forgot to square the whole set of numbers. u=.5mv^2 and then u=qV

he is a bad speaker

1) subjontif 2) subjonctif 3) infinitive

My answers, but im not sure if it is right

Will i be getting help from SraJMcGin..