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

Questions

The following questions were asked by visitors named student.

Equation- Mg + 2HCl -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75g of HCl? To get the volume of hydrogen, you need to know how many MOLES of hydrogen are produced. To know this, you nee...

My question is that i need help for this problem understanding how they came about to the answer it is an odd problem so: The answer they have is: 18 cakes for the first one. 8 cakes for the second one. 2 cake for the third one. Here is the original probl...

what formulas do i use for this: Investments Suppose $10,000 is invested at an annual rate of 5% for 10 years. Find the future value if interest is compounded as follows. A) Annually B) Quarterly C) Monthly D)Daily (365 days) A) 10000*(1+.05)^10 B) 10000*...

#1 A menu offers a choice of 3 salads, 8 main dishes, and 5 desserts. How many different meals consisting of one salad, one main dish, and one dessert are possible? My answer: 120 mealks possible #2 An uto mobile manufacturerr produces 7 models, each avai...

can someone correct this problem for me thanks A group of 7 workers decide to send a delegation fo 2 to their superviosr to discuss their grievances. a) how many delegations are possible? my answer: 21 b)If it is decided that a particular worker must be i...

so how did you say to do part c c) if there is 2 woman and 5 men in the group, how many delegations would include at least 1 woman? would it be the answer to part a minus the number of 2 man pairs which will give me: 21 - 5combination 2 = 21-10 = 11 Ooops...

I need help with this problem I do not understand how to solve this kind of problems....can someone show me and explain it to me thanx. Find a Z-score satisfying the given condition: 82.9% fo the total area a is to the left of z. http://www.fourmilab.ch/r...

round result to two decimal places...the answer i have is: 7.023 so two decimal places would it be: 702.0 You're asked to round to two decimal places. 7.023 = 7.02. Your answer has only one decimal place. so i guess my answer is wrong then...so what do th...

what is the probability that at least 2 students in a class of 36 have the same birthday? Do i punch this in to the calculator or how did you found this way or method for your solution: Log(365!) = 1792.3316 Log(329!) = 1581.7202 36 Log(365) = 212.3963 An...

well this is what i need i am baking but i need 6cup of buttercream icing. And i found a website that sells it made but it says that the container size and has 3.5LB of it...so would one container be enough or should i buy two..thats why i am not sure abo...

A cable tv company charges $50 for the basic service plus $10 for each movie channe. Let C(X) be the total cost in dollars of subcribing to cable tv, using x movie channels. write a cost function for the problem. what i think it is: c(x)= 50 + 10x That lo...

how do i set this up...i need help in the set up... In deciding whether or not to set up a new manufacturing plant, analysts for a popcorn compnay ave decided that a linear function is a reasonable estimation for the total cost c(x)in dollars to produce x...

Estimate 16 20/21*28 3/7 - 4 13/25 + 8 2/47 as a whole number or as a mixed number whee the fractional part is 1/2. a. 452 b.480 c.488 d.492 1/2 I would say the answer is c - 488. Would that be right?

I need help with these two question.And if you can help me understand them as well.thanks 1)Did the U.s. governmnet fostered monopoly or oligopoly ownership throughout radio's history. 2)What are some advantages and disadvantages of government-fostered ow...

I need help to even start this paper with the required information but I've re-read the chapter and I am not understanding. Can someone help me make an outline to write out a good essay on this assingment with helping answering and understanding the corre...

Can i bother again to see if you can help me set up my paper so i can know what i should talk about in each paragraph so i do not loose myself. And hints towards what to talk about. In the previous postage.

I was woundering by any chance were you able to help me figureout how to set up the essay as an outline according to my assingment about the government being monopoly or oligopoly stuff. From yesterday postages?

Are there any Television programs that have primarily helped or hindered social and political life in the U.S.?

Can someone help me with this what is a tense or exciting moment in Oedipus Rex? What would also be a literary device or convention that the author use to develop such specific moment?I have read it over and over and I am having difficulty with it.

what are the types of carbohydates and the types of lipids.

I am having touble how to work with the retail inventory method to estimate the companies year end inventory. i have the following information but i just do not see it with even the example in the book. It is in a 5x3 matrix of colimns and rows. what is i...

please help what is the best way to introduce to yours classmate?

I asked this before, but got no response. A) If you make up a solution of 250 mL of 0.1 M TRIS in the acid form, what will be the pH? B) If you add 2 mL of 1 M NaOH to the solution in part A, what will be the pH? Thanks.

Buffer question: If I add 3 mL of 1 M NaOH to a buffered solution, will I still have a valid buffer?

a large vertical rectangular plate of glass is to be inserted in the wall of an aquarium underwater so visitors can see into th tank of fish. the glass is 10 feet high, 25 feet long and the top of the glass is 3 feet below the top of the water. the pressu...

Can someone please help me with the following question. I am not sure even where to start. A 5-year annuity of 10 $9,000 seminannual payments will begin 9 years from now, with the first payment coming 9.5 years from now. If the discount rate is 11 percent...

what is a nanotube?

i want to make sure i am answering this correctly. 1) the primary source of energy for ocean currents and waves is: the sun 2)as a wave passes in deep water, water parcels move in: almost closed circular orbits 3)which of the following is not a feature of...

i am lost in the steps i am working with binomial theorem to expand the expression. Finding the three first terms in the expanison of : ((x^2) -((1)/(2x) ^8)

i need help in this one for the steps. find the therm that does not contain x in the expansion of ((8x) + ((1)/(2x))^8

i need explanation how they solved this one the answer is provided: finding the number o fdistinguishable permutations. (15!)/(4!3!612!) = 6, 306,300

i have to search for a recent ocenaographic event to write a book report on has to be on the internet what is agood website or where should i go so i can read about it.....

The arch of a bridge is a semi ellipse, the span is thirty feet and the top of the arch is ten feet above the major axis. the roadway is horizontal and is two feet above the arch. find the vertical distance from the roadway to the arch at five feet interv...

i have a tritation lab due tomorrow and i am stumped on a couple things. its a titration lab using sodium hydroxide (NaOH)- 250 mL 0.300 M concentration, 10 mL of an unknown substance of vinegar, the avg. of titrated NaOH in the flask with vinegar is 27.7...

Hello, Where can I find more information about Aaron the moor in "Titus Andronicus" by Shakespeare? Prompt: As Tamara's star rises, so does Aaron's influences. How does he use it? What are his stated motives and confessed motives? Why can Aaron not act ot...

Explain whether the set {0, 1, 2} is closed with respect to addition on whole numbers.

Simplify each of the following, if possible. Write your answers in the exponential form ab. (a) 24 • 25 • 28 (b) 34 + 2 • 34 (c) 250 • 250

The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?

Sheryl correctly answered 85% of the questions on her 200-question biology final. Fernando scored a 90% on his 180-question chemistry final. (a) Who answered more questions correctly? (b) Who answered more questions incorrectly?

Nitrogen and hydrogen react to form ammonia. Consider the mixture of N2 and H2 in a closed container. In this container there are 6 diatomic molecules of hydrogen and 6 diatomic molecules of nitrogen. assuming the reaction goes to completion draw a repres...

In which cases are higher-energy photons released, with Li+ or Cu2+? How do you know?

Why is the light from an incandescent light bulb white?

why are the orbitals of the hydrogen atom described as probability maps? Why are the edges of the hydrogen orbitals sometimes drawn to appear "fuzzy"?

I need this sentence to be separated into a gerund phrase "jumping out of airplanes sounds scary to me." Please help

Why do the metallic elements of a given period (horizontal row) typically have much lower ionization energies than do the nonmetallic elements of the same period?

an asteroid orbits the sun at a constant distance of 4.44e+11 meters, the suns mass is 1.00*10^30kg, what is the orbital speed of the asteroid? Please explain step by step thanks

I keep getting these questions wrong, could someone please help. Thanks so much. Question 1 For the following overall reaction, the rate constant is 3.4x10^-2. A(g)+ 2B -> 2C + D What may be the rate reaction? Question 2 The rate law for this reaction is...

Which of the following is considered a Lewis acid or a Lewis base. I- H2O BCl3 NH3 OH- H+ CO2 SO2

Let Q be an acute angle such that sinQ=.6. Find the values of the following using Trig Identities: cosQ and tanQ

Calculate the amplitude, period, phase shifts, and 5 points for y=2-sin(2piex/3)

A cylindrical air duct in an air conditioning system has a length of 3.5 m and a radius of 5.00 m. A fan forces air (ç = 1.8 Pa·s) through the duct, such that the air in a room (volume = 242 m3) is replenished every 12 minutes. Determine the difference in...

Find the sum of the first six terms of the geometric series 81 -27 +9 -... how do you work it??

Find A1 in a geometric series for which Sn=210, r=-2, and n=6? Can someone lead me in the right direction?

The 20 errors are in the following categories: comma usage (six errors); question marks, apostrophes, and quotation marks (five errors); capitalization (six errors); and colons, semi-colons, and commonly misused words (three errors). Passage: Why are grea...

I think I found all the errors. What do you think?

I believe I have found all the mistakes. What do you think? Identify Twenty Errors in the Passage Below Review the passage below, which contains 20 errors. Identify these errors by marking each of the errors in bold, and make your correction in parenthese...

why are gay guys given less of a chance then strate guys in a goverment court.

how many inches are in cenimeters 25 ceinmeters = ? inchs

Please help me solve these problems. 12^2+2 [(13+3)] / 2^2] -4(3)+5[7-6(-4)^2] -5(3)+3[9-6(-3)^2]

im doing a paper on anceiant agriculture i have wtiiten the paper but i need an into sentence just a good first sentencee

The first right given to every American citizen at birth is the right to freedom of speech and religion. Therefore, anyone would be able to choose which religion to endorse. Religions such as Christianity, Catholicism, Islamic and Judaism can have major i...

Religion plays a big part in people's daily life. The Christian and Catholic religion beliefs going to conformation, regular church services, Sunday school, and other church events. Members may also pray throughout the day at times such as before meals an...

These four religions have some similarities but are very different in their beliefs and their cultural differences to society. Christianity is one of the largest religious groups in politics but and also is the biggest religious group in the world. Christ...

A 175-N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

Find the formula for the compound that contains 72.4% iron and 27.6% oxygen.

What mass of water must be added to 0.5 mol of glucose to make a solution of 25 percent by mass?The molar mass of glucose is 180 g/mol.

Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.

You react chemical A with chemical B to make one product. It takes 100 grams of chemical A to react completely with 20 grams of chemical B. What is true about the chemical properties of the product? a. the properties are more like those of chemical A b. t...

Find the interval (or intervals) on which the given expression is defined: (x^2-7x+12)^(1/2)

All of the following statements regarding the Monroe Doctrine are correct EXCEPT? A. Issued by Monroe in response to an onslaught by European monarchies against democracy in the Americas. B. Would have been ineffective without the backing of the British n...

Consider the following reaction: Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm, and that the initial partial pressure of A is 0.0 a...

NH4HS<-->NH3+H2S What is the minimum mass of NH4HS that must be added to the 5.00-L flask when charged with the 0.300g of pure H2S, at 25C to achieve equilibrium?? Kp=.120 at 25C initial pressure of H2S in flask = .0431atm partial pressures of H2S and NH3...

A certain first order reaction has a rate constant of 3.75x10^-2 s^-1 at 25.0C. What is the value of k at 70.0C when the activation energy is 135 kj/mol? Would I use the formula K=Ae ^-Ea/RT even though I have two temperatures?

The minister sent to Mexico in 1845 had strict orders to accomplish what as his primary goal? A. Secure Mexican approval of the annexation of Texas B. Purchase California for $25 million C. Get Mexico to grant their claims to Oregon to the US D. Settle th...

no question - just thank you "drbob", you've answered a few of my questions.

The point P(4, −2)lies on the curve y = 2/(3 − x). (a) If Q is the point(x, 2/(3 − x)),use your calculator to find the slope mPQ of the secant line PQ (correct to six decimal places) for the following values of x. 1) 3.9 mPQ= 2) 3.99 mPQ= 3)3.999 mPQ= 4)...

X^2 * x+15 X^2+7 x

X^2 x+15 ----- * ------ = X^2+7 x

5 radical 5 and 9 radical 5 ____like radicals. a. are b. are not

use the pythagorean theorem to find b when a=14 and c=y (triangle) b=

Factor the given expression. Then use the zero product rule and the quadratic formula to solve the problem. There should be three solutions to the equation. x^3-2197 x=

solve the equation log (4x)= log5 + log(x-4)

solve the equation log2(3x-2) - log2 (x-5)=4

find the domain of the function 1) f(x)= log2( 49-x^2) 2) f(x)=In [1/x+5]

solve x^4-8x^3+64x-105=0 given that 2-i is one solution. must be tired cause my steps are not calculating correctly

how do I find the relative maximum and minimum values of x^4-x^3-7x^2+x+6

what is the equivalent logarithmic form of 6^z=244

-32x^5y^4-24x^4y-16x^3y= _ _ _ _ Factor out: -8x^3y

-32x^5y^4-24x^4y-16x^3y= _ _ _ _ Factor out: -8x^3y

If angle <a and <b are complementary but <a is four times as large as <b, find the measurement of a.

A few weeks ago I was in company with my friend Josephine S. Griffing, when the conductor of a streetcar refused to stop his car for me, although (I was) closely following Josephine and holding on to the iron rail. They dragged us a number of yards before...

Both texts deal with racial discrimination. How does the structure of poem help convey this meaning in a way that the prose passage does not? A)The poem conveys meaning through imagery; the prose passage does not. B)The poem uses first person point of vie...

find the length of the curve y^2=x^3 between x=0 and x=5

what are the islamic values in the experiment composition of potassium chlorate?I have to do lab report about the topic and the due date is around the corner.please help me..

During manufacturing of a CIGS device, the metal back contact is deposited first, while in case of the CdTe solar cells, the back contact is deposited in the last processing step. What are the configurations of both cells: a) Both the CI(G)S and CdTe sola...

How does the law of conservation of matter apply to mixtures? The law of conservation of matter is a law that states matter cannot be created or destroyed. But how does that affect mixtures HELPPPPP

The introduction of maize most likely contributed to which major Native American cultural shift? A) the creation of large earthworks B) the gradual end of the nomadic lifestyle C) the growth of the hunter-gatherer culture D) the depletion of large game su...

I need help in writing a detailed paragraph contrasting these two stories "Gumption" and "To build a fire" and how their structures influence meaning.

what does ribosome mean in simple english?

The process that creates cells with different genetic combinations is a. asexual reproduction b. mitosis c. cell fission d. meiosis i believe its d?

Answers

The following answers were posted by visitors named student.

yes, that is what we use in class instead of x when we are are on the computer.

1 is part of the problem. 1 and 2/5 divided by 21 The possible answers given are : a. 1/15 b. 1 2/105 c. 15 d. 29 2/5

See i posted the required assingment in another post. But i am having trouble with it. My opinion is that I think that the government has many compies for many different radio stations depending on who promotes them. If the government only owned all radio...

depending what type of information you are requireing about. If you have their number and want their address. Go to m_s_n etc. then go to the link white pages and it will direct you there.

Can you help me set up the paper like an outline so i do not loose myself on what to talk about like help me organize it. THANKS

tHE ACTUAL ASSINGMENT IS IN A PREVIOUS LINK

i seen that you wrote back and were looking thank you

My apologies i did not see the continuation of postages. Thanks for helping me out in setting it up.....

Ordinal numbers are what called in order therefore, the first couple of them would be: First Second Third Fourth FIth Sixth etc. so IF YOU HAVE: 00000 THIS WOULD BE FIFTH

and it says in the back of the book the inventory is 55902 cost. how did they get that?

try g_o_o_g_l_e

for A, correction: it is actually 50 mL of a 0.1 M TRIS. Here is the answer I got for A: A) pH= 2.3 For B, I got pH= 1.2

i wrote down the incorrect problem sorry the actual problem is ((x) + ((1)/(x)))^40

i remember correctly i had this on one of my homeworks . 40-32 = 8 therefore 8% because if you subtract 40 - 8%

yes instead of being 612! needs to be 6!2!

they are actually five cells, sense and respond to change reproduce energy DNA

If you are an Axia student then, YES, there is reading materials for this "crap". There is a whole chapter of the text that answers each part of our questions thoroughly and clearly. Chapter 11 of the "Racial and Ethnic Groups" text that is available thro...

I too am trying to find the entire answer...but I would like to offer a tip for finding the answers in our reading. Yes Chapter 11 is where u need to be. And if you go to the PDF tool bar & click on search, enter the word(s) such as "orientalism" and you...

i have a titration lab with sodium hydroxide with an unknown vinegar all i know is we have 0.3 M sodium hydroxide solution (250 mL)and a 50ml burette that when titration was done the avg. of 3 trials was 27.7 mL im not sure what id write for the hypothesi...

oh ok..i just wasn't sure if the vinegar was acetic acid because the procedure saud determining the concentration of acetic acid in an unkown sample of vinegar. thank you very much though! oh one last question, i understand the purpose of lab and how to c...

alright thank you very much i appreciate it! :)

Your comments to the editor of your favorite magazine intrigued her enough to call you and request that you write an editorial, for which, you note with a little surprise, you will be well-paid. She provides you with two topics which she feels would be of...

they need common denominators, so: 1) find a common denominator. in this case, the lowest one is 24. 2) make both denominators = 24. 2/3 x 8/8 = 16/24 5/8 x 3/3 = 15/24 3) add them! 16/24 + 15/24 = 31/24 or 1 7/24

Explain the four factors that produce changes in population size. Which factors are affecting the population size in the video? What do you predict will happen to the nutria population after all the land is depleted of the nutrias’ food resource?

thanks for the answer :)

for body diagonal. take face diagonal and square it and take edge diagonal and square it. add those 2 together than take the SQUARE ROOT of it. Answer. so its basically the a^2+b^2=c^2 equation.

just type it in. it works when its negative.

thanks Dr. bob.

I checked out the graph, but when I go to 10^3 vertically, how far over am I looking. There are several lines, which one will tell me how much mass a star could have while on the main sequence to support life? thanks!

where does 1.06 come from

thnk you so much.!

Thanks bro, atleast I know the second question can be right.

each material listed, sorry for not being specific.

Def, have a better understanding. Thanks so much

i really don't know how to start this that's why i need help on this

i tried to solve for b but got it wrong. can you just tell me how i can get it started please.

i tried what you said for part b and it was marked wrong.please help

sorry. but i posted under the original question and got not response. but i tried this for part b and i got it wrong

Sorry, I posted the master by mistake.

I think I found them all. What do you think? Passage: Why are great numbers of students choosing to pursue their college degrees using their home computers.(computers?) Benjamin Franklin said; A (“A)penny saved is a penny earned”. This principle applies t...

Thank you so much for your feedback. I think I have everything fixed. What do you think? Why are great numbers of students choosing to pursue their college degrees using their home computers.(computers?) Benjamin Franklin said; A (“A)penny saved is a penn...

ok....everything should be good now. Hopefully, you will agree. Why are great numbers of students choosing to pursue their college degrees using their home computers.(computers?) Benjamin Franklin said;(said,) A (“A)penny saved is a penny earned”. (earned...

oops! Identify Twenty Errors in the Passage Below Review the passage below, which contains 20 errors. Identify these errors by marking each of the errors in bold, and make your correction in parentheses after the error. Example: My cars interior is black....

Are you still with me? Just checking.

I'm assuming you moved on. Thank you for your time.

Thank you for your help!

over time there has ben recorded evadence that gay guys are more likly to be fasly accused then strate guys....... cbsnews. com/stories/2010/12/06/politics/washingtonpost/main7121875.shtml

so would you aggre that this is a valid argument that i can present?

thank you for the help

Oxygen in the air is O2 like wise nitrogen is N2. mole fraction = n (mole of 1 component) / N (total mole of all components) Oxygen mole = 21 g /(32g/mol)=0.66 mole Nitrogen mole = 78 g / (28g/mol) =2.78 mole Argon mole = 1g / (40g/mol) =0.025 total mole...

since all the gases are in % (100 percent) you could easily convert those percentages to grams to find the moles of O2, N2, and Ar.

pick the topic that you will do and then talk about y u would use that one over the others

just skip my question i found the answer but this website helps alot but for once i found the answer b4 you guys thanks so much

no help at alll form this website thx bye

recheck please The first right given to every American citizen at birth is the right of freedom religion. Therefore, anyone would be able to choose which religion to endorse. Religions such as Christianity, Catholicism, Islam and Judaism can have major im...

0.7 is the answers

yes i believe e is true

Wouldn't they both be > or = to?

Yes you're right. THANK YOU SO MUCH!!

I think it is C or D. But I'm leaning towards C.

Oh okay that makes more sense now. Thank you for clearing that up. I tried entering in 2.78 for my partial pressure of NH3 but the program I am using is telling me that is incorrect?

Oops! I thought that was there. It is A(g)<-> 2B(g)

Ah! Yes that worked out perfectly! Thank you so much for the help. That one really had me stuck!

so this set up would be 1.6= (1-p)^2/p which then turns to p^2+1.6p-1 then solve the quadratic equation?

could you please explain the last question, c, again. Ive tried a few times but I am still getting it wrong.

after using the ideal gas law to find moles then mass of NH3 to add to the H2S I got a answer of 3.0334g This is my last attempt to enter in a answer for the program I am using and I don't want to lose points, obviously. I just want to see if anyone can c...

I plugged in the values P is pressure I have for NH3 which is 2.78, 5L for V, n, R the gas constant and T 298K. to get .5684 mol to .03388 g of NH3

Thank you for taking the time to answer me on this. I used the gaw law to solve for NH3 for the mass of it to then add it to the mass of H2S to find NH4HS. I think Im still a little confused on how to go about this, but hopefully by your answer I can figu...

but answer is not right its not 5.00*10^22

i cant get right answer pls help

its wrong steve

Hey guys! are you from 3.091x ? I wasn't aware that there was a exam, and now it is due in few hours. Can you help me out? Much appreciated. 1)Determine the minimum potential that must be applied to a proton so that, on interaction with a hydrogen atom, i...

Ksp = (Mg^2+)(pal)^2/[Mg(pal)2]- expression is incorrect. mg(pal)2 is not part of the ksp expression as the reactant is in the solid state. only Ksp = [Mg^2+][pal]^2 is relevant.

I KNOW what the caged bird feels, alas! When the sun is bright on the upland slopes; When the wind stirs soft through the springing grass, And the river flows like a stream of glass; When the first bird sings and the first bud opes, I know why the caged b...

i honestly don't understand the story then the questions makes it harder i wanted help on that

the answers to the entire test are D D C D C

e is 14 and 14 again

what are the answers?

I don't have the answer, but thank you guys for it

How comes no answer for this????

not a linkk i want someone to explain it too me

thanks steve that helps me without giving me the answer

i am a connexus student i use this site for help not answers for any other connexus students this is a site for help not answers it says it in the name of the site

X~N (51,s^2) P(X<39)=0.25 solve to find s Ans: 17.804

Is the movement shown through his raised foot and him fertilizing the date tree?

Yes, thank you so much!!!

whats the most common

don't listen to k-jenner I thought that too but it is not right

b is the correct answer

No frequency given

You mean you didn't do a good job learning? I only come here to literally check my work. I have strait A's, use Kahn Academy and You Tube and compare my answers here. Go to Live lessons, take notes, do your work. SUPER SIMPLE!