i need the exat percentage of nitrogen in magnesium nitride
44,388 results, page 72

math
You have an aquarium for your new pet, “Shamu” the killer whale, that contains 100,000 pounds of ocean water with a salinity of 30 o/oo. a. Calculate how many pounds of salt are currently in the aquarium. b. You think Shamu may be allergic to salt, so you decide to ... 
year 8 RE  re teachers
Please could someone help me with my re homework. i need to write an essay.this is the question: Show how religious beliefs and practices may be connected to the needs and concerns of people living at different times and in different situations. Please could you explain what ... 
popular american culture
please forgive me just was typing in cap no disrepected to anybody. i need a good example of how to rewrite this fragment sentence the endeavor to influence a specific audience to buy a goods or service or a specific belief i need someone just to show me what wrong with this ... 
Science
I need some answers for my science essay... We have a research report and I cannot find these answers ANYWHERE. The sport I chose for the assignment was Quidditch (awesome, right?) and I cannot find work for a bludger, quaffle, golden snitch, or players. I need at least two ... 
to ms.sue project
this is what it says for the paper: You will create a trait flipbook based on a character from the book Holes. You will need two sheets of 8 1/2 by 11 – inch white construction paper, scissors, a stapler, and colored pencils or crayons for this assignment. can i just use ... 
Math
How many solutions does the system of equations have? 3x=12y+15 and x + 4y=5 Y=6x+2 and 3y18x=12 x2y=6 and 3x – 6y =18 y5x=6 and 3y15x=12 Ok, so I’m having problems with these, so if Steve or Reiny could help with these problems and show the work for them that would... 
English 4 help
In this course,you studied literary works from the romantic period,the Victorian era,and the modern era.Describe the common themes from each era.Then explain the main elements of the historical context that contributed to the themes in each era. All I need is help on how to ... 
algebra
i need help with a problem, if not fully explained then i might need help with another problem. I was given the formula for the volume of a sphere i, but i still don't know what to do. if you could explain to me thatll be great. Tanks The radius of a spherical balloon is 1/2 ... 
World History NEED HELP KNOW MS.SUE
I need the following items ordered from least to greatest importance in ancient Chinese culture: Tea Silkmaking Blue and white porcelain Multiplication Table Gunpowder *Note: These are all things that were developed in the ancient Chinese culture. 
Health
Ok so my friend has a eating disorder and im doing a paper on it she is obese but everytime I try to wright it she throws it away what do I do Im trying to help her and she dont like that :( anyways are there any other ideas it has to be a eating disorder But i dont know any ... 
AP Environmental ScienceEcosystems
1. What are the physical products of cellular respiration? a. Oxygen and carbon dioxide b. Nitrogen and carbon c. Glucose and oxygen d. Glucose and water e. Water and carbon dioxide 2. If the biomass of flowers that support the butterflies was known to contain 100,000 units of... 
Math
I am doing Partial Quocients Division for homework. And I need help.But, my mom didn`t learn this method.And my dad`s gone on buisness, my brother doesn`t know how to do it, my other brother is doing his homework and my sister is only in the 3rd gade. What should I do? Post a ... 
English
i need ajectives (5), adverbs(5), similie (1), idiom (1), metphor (1) decribing Violet Beauregarde i reli need this i don't have the movie so i cant not watch it and my some of my internet doesnt work soo i cant watch it on youtube or otha sites so can someone please help me... 
business
To start a day care center, what are the basic materials and supplies that you will need? i.e, desks, chairs, tv, kitchen area (fridge, stove), books. what are some other things that you would need. what are some activities that kids 34 age do at a daycare. Please give me ... 
Physics
A bungee jumper of mass 60 kg jumps from a bridge tied to an elastic rope which becomes taut after he falls 10 m. Consider the jumper when he has fallen another 10 m and is travelling at 15 m/s. Work out how much energy is stored in the rope. Take g=10 m/s^2 and ignore air ... 
English
Can you please check these statements? I'm not sure about the word choice. 1) Explore the theme of the double as it occurs in the works of the writers we studied in class. (I need to change "we studided in class") 2) Describe (I need a synonym) the kind of imagery used by ... 
Algebra 1Fractions
Or, eliminating fractions, I should say. So, I need some help. See, I am really not a big fan of fractions. But I need to eliminate fractions to do a math problem. First one is 1/2x=3/8. I know how to find LCD, then multiply both sides, distributive property, etc etc. But ... 
Chemistry
A student must make 500 mL of a 1.5 M HCl solution. The student has plenty of water and a stock solution of 6.0 M HCl to use. What volume of the 6.0 M HCl solution must be added to what volume of water to make the desired 500 mL of 1.5 M solution? I don't really know how to ... 
Chemistry
A student cleaned a crucible with HCl. After pouring the HCl into the waste container, the crucible was neither rinsed with water or dried before the student added the NaHCO3 and KCl mixture. The crucible contained some residual HCl. How would this experimental error affect ... 
7th Grade EnglishWord Puzzles/Pictures
I need help with word pictures/puzzles.(1) head (no capitals or other words next to it, above or below it)...(2) yrooucrhkeasd (again, no words above, below or next to it) Thank you! I'm sorry, but I don't understand. Can you give us more details about these pictures/puzzles? ... 
Chemistry
A sample of sandstone consists of silica, SiO2, and calcite, CaCO3. When the sandstone is heated, calcium carbonate, CaCO3, decomposes into calcium oxide, CaO, and carbon dioxide. CaCO3(s) → CaO(s) + CO2(g) What is the percentage of silica in the sandstone if 19.2 mg of ... 
OChem
The solubility of acetanilide is 3.53 g in 100 mL of chloroform at 0 °C, and 29.1 g in 100 mL of chloroform at 60 °C. What is the maximum percent recovery that can be achieved for the recrystallization of acetanilide from chloroform? Hint: During a recrystallization, some of... 
Statistics
The average grade point average(GPA)of undergraduate students in New York is normally distributed with a population mean of and a population standard deviation of. Compute the following, 1)The percentage of students with GPA'S between 2.0 and 2.6 2)If a sample of 49 students ... 
math
y = ½ x^2 – x +3 for 0≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x= 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x = axis. (c) assuming that the area determined by ... 
Math
y = ½ x^2 – x +3 for 1≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x= 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x = axis. (c) assuming that the area determined by ... 
physics
A 2.00kg bullet moving at 600m/s strikes a piece of wood at rest on a frictionless table. The bullet sticks in the wood and the combined mass moves slowly down the table. a.) What is the speed of the combined mass after the collision? b.)What is the change in kinetic energy of... 
art
We are doing Dawn Dupree and I need to find out about her. Have tried different websites but none contain info. I need info on her work and her thoughts about her work etc. Does anyone know any good websites I can go on. Many thanks. 
language arts
I need to do an essay in a language arts package titled noggin. I lost the essay part of it. I'm not asking for you to do an essay for me, but if you could put up the page so I know how to make the Picture look that the essay goes in. I need to have it in by Monday 
English
You need to ride up the road. (Which vehicle does the other person have to ride? Is this expression used only for riding a horse? What is the meaning of 'ride up'? Does the other person need to ride a horst toward the place which is up?) 
Social Studies
Identify some of the benefits of agriculture to ancient Egyptian society. Please help I need you to list 2 or more benefits of agriculture egyptian society and I need a one sentence explanation why it is a benefit 
English
I need to describe an example of diction in the story "The Other Wife" but i also need to describe an example of syntax. I don't quite understand the difference between the two. Is there a better way to understand the difference? 
Science
Teachers need a better way to give feedback to students. Writing on everyone's paper takes a lot of time,even though it is effective. Students and teachers need a better way. 
lab....
when doing a lab you need an anayliss, but what is it and how do I make it like what do I need to put into my analysis? In the "analysis" part of a scientific experiment, you take the data you have collected and use it to answer whatever question or problem was the objective ... 
Science Project
I have to do a project on how smoking effects the environment. I need three sources. I have two already. I need background information, causes of issue, effects, and possible solutions. Help would greatly be appreciated. P.s. project is due Dec. 19, 2008 
Studying
I need help studying since i have good grades but since i slack off they always end up a little lower than i want them to be plus i need to slacking off since next year is gonna get al,out harder but i cant use notecards because i prefer spirals 
Programming Logic
I need to create a flowchart/psuedocode for a dice game that give you 2 rolls with 5 dice, 3 rolls per game. the computer will roll the 4 dice and calculate your score. my question is...do i need to repeat this 3 times and can i use nested loops and if so..how do i set this up... 
Algebra
I need help finding the correct answer. I got it wrong on my homework and am studying for my test and need to know how to do it. ln e^lnxln(x3)=ln 8 my wrong answer  no solution correct answer  (24/7) 
maths
could you please help me.... Draw the graph of y=x3 for values of x from 3 to 4 also how would you draw the graph of to 2x+y=7 for values of x from 0 to 5 i don't need the graph drawn i just need two plots for each! thanks 
English
1. You don't need to go there. 2. You need not go there. 3. You don't have to go there. 4. You have not to go there.  They are the same in meaning. However, #4 is not used frequently, right? In British English, is #4 used these days? Where is #4 ... 
algebra
An elevator when full holds 20 kids or 15 adults. If 12 kids are on the elevator how many adults can still get on. I need to use an algebraic equation/expression to solve this word problem..I need step by step solutions to explain it...Thank you... 
Romeo and Juliet Help (quick question)
I need a good website that has Romeo and Juliet act 3 summary. The website needs to have all of the scenes separated but on the same page. Thank you I need this so I can understand this act better. 
Chemistry
How do you find the number of valence electrons in a molecule? Do I need to use the Lewis structure diagram to find out? Please help! I need to the total number of valence electrons for SiH4, H2SO4, CCl4, BF3 and I don't know how! 
Reading
im reading this book called across five aprils. I need another quote from the book to go with my essay. i need a good quote from the part were Jethro finds his couisn, Eb, in the woods. Eb is a deserter. Jethro wants to get him help........ Do you have any suggestions? 
Ms. Sue English
For my last point before i explain my root principle fear (the main cause of war) im using why greed isn't the main cause of war and I need some other things to add. This is what I have so far. I need to add more. Greed isn't the root principle because in every war allies have... 
math
Graph y = ½ x^2 – x +3 for 0≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x axis. (c) assuming that the area determined by ... 
math
Graph y = ½ x^2 – x +3 for 0≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x axis. (c) assuming that the area determined by ... 
Math
Graph y = ½ x^2 – x +3 for 0≤x≤6 Calculate the mid ordinates for 5 strips between x = 1 and x 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x axis. assuming that the area determined by integration ... 
statistic
Suppose the people living in a city have a mean score of 48 and a standard deviation score of 7 on a measure of concerns about the environment. Assume that these concerns are normally distributed using the 50% 34%  14% figures. Appoxatmaily what percentage of people have a ... 
chemistry who helps me step by step
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. calculate the percentage of fe204 7h20 in the sample. My calculation 0.02x... 
Business Math
The Mills Lunch Shop prepares fresh takeout entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. Mills Lunch Shop sells dinners at an 80% markup based on cost. They decided to offer a $1.00 off ... 
history
can i please get some GOOD information on how the 1920s laid the foundation for today's society. i need to write an essay on that, but i just need some information for like the economy and society from 1920s. thanks 
math corrections
There are 10 men spent 10 days finishing one project. If we need to finish the project by 5 days, how many more men do we need? A.1 B.5 C.10 D.15 E.20 Choice E is wrong, i'm starting to think that choice B is the answer. 
Chemistry
the mass of the crucible is 19.73 g fill the crucible with CuSO4 which was 26.44 g Heat the crucible until the water is released it weighed 23.40 g So now, how many moles of water is removed? The number of moles of CuSO4 that after dissolution rest? determine the number of H2O... 
World Geography
REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates<<<<<<<< C. Literacy rate of adult population D. Average unemployment among citizens 2.The Canadian ... 
Geometry
I need to do an assignment where I find two cereal boxes that have the same volume but differ in surface area? Can someone please tell me when I'm looking at the boxes what I need to be looking at to compare these two things please? Thank you! 
Statistics
I need assistance in calculating the mean and standard deviation from data collected using 2 surveys, strongly agree, agree, neutral, disagree, strongly disagree. Can someone help please? Need the raw data also. 
Math
I need to use the Gaussian Elimination to solve a system of equations, but I have no idea on how to do that. I remember doing these in high school, but since its been a while I can't remember exactly how to do it. Here's the system of equations I need to solve using it: 4x + ... 
math
Tom wants to run 2 1/2 miles on a 2/3mile track how many laps does tom run. I had add 2/3+2/3= 4/3 adding it up to get a 2 1/2 miles but it added. To 2 laps that don't sound right I need help need to have this dome tonight can't figure it out 
STATISTICS
In a certain city district, the need for money to buy drugs is given as the reason for 65% of all thefts. What is the probability that exactly 2 of the next 4 theft cases reported in this district resulted from the need for money to buy drugs? 
science
Part I: Units of Measurement for Gas Laws For the following questions, use the following answer choices to indicate what each unit of measurement is used to measure (pressure, volume, or temperature). 1. atm 2. kPa 3. L 4. oC 5. torr 6. K 7. mL 8. cubic centimeters (cm3) ... 
math
25 % of a class of 40 students are girls. When some new girls joined the class, the percentage of girls increased to 40 %. How many new girls are joined the class 
French (need a website link quick question)
I need a website link that will give me a practice test to Qu'estce qui and Qu'estce que. Where Qu'estce qui acts as a subject and Qu'estce que acts as an object. I also need a test on negative and affirmative commands. For example: Montrezmoila radio Answer: Montrez la... 
Geography
Last time I asked this question, I forgot to come back here and check so I'm really sorry that I'm asking again but i need an answer to this!! because this exam was supposed to be due Monday 29. What forms the basis of the Czech economy? a. subsistence farming b. arms ... 
math
In a Gallup poll of 1,038 adults, 540 said that secondhand smoke is very harmful. What is the percentage of adults who said secondhand smoke is very harmful? 
statistics
1. In a Gallup poll of 2,040 adults, 956 said that secondhand smoke is very harmful. What is the percentage of adults who said secondhand smoke is very harmful? 
statistics
1. In a Gallup poll of 1,038 adults, 540 said that secondhand smoke is very harmful. What is the percentage of adults who said secondhand smoke is very harmful? 
chemistry
0.50g of a mixture of K2c03 and Li2c03 requires 30ml of a 0.25N hcl solution for neutralization. What is the percentage composition of the mixture? The answer k2c03 96% Li2c03 4% K2c03 weight 138g/mol 138/2 = 69 Li2c03 weight 74g/mol 74/2 = 37 30ml x 0.25N = 7.5 / 1000 x= 0.... 
sciology college course
1. A dad holds five coins in his hand. He tells his son that if he can guess the amount of money he is holding within 5% percentage error he can have the money. The son guesses that he is holding 81 cents. The dad opens his hand and displays 90 cents. Did the son guess close ... 
Math
Circular discs of radius 3.5cm are to be cut from a rectangular sheet of cardboard measuring 50cm by 30cm. once the disc are cut out, the remaining parts of the sheet are waste. A. how many disc can be cut from one sheet of cardboard? B. If % waste = waste/total area x 100,... 
Chemistry
A is a solution of hydrochloric acid containing 3.650g of HCl in 1dm3 of solution. B is a solution of impure sodium carbonate. 25cm3 of B require 22.7cm3 of A for complete reaction. Given that 5.00g of impure B was dissolved in1dm3 solution,what is the percentage by mass pf ... 
Science
Choose the explanation that does the following: (1) identifies the element used in carbon dating and (2) explains why the element is used. A. iodine131; iodine is present in the thyroid glands, is radioactive, and has a very long halflife B. nitrogen14; radioactive carbon ... 
Business Stats
In a recent survey in a Statistics class, it was determined that only 60% of the students attend class on Fridays. From past data it was noted that 98% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class on Fridays passed the ... 
Physics
A glass flask with a mass ok 3.00kg and volume of 1000 cm3 is completely filled with mercury and is at a temperature of 55.0oC. The flask is then lowered into an ice water bath. After thermal equilibrium is reached, (a) what percentage of the flask will be filled with mercury... 
chem
A 0.70 g mixture of Cu and CuO was treated with hydrogen at elevated temperature. CuO was reduced to Cu and water was formed. (a) Write a balanced equation for the reaction. (2 marks) (b) Before the experiment, calculate the minimum amount (in mole) of hydrogen required to ... 
English
Hello! Any ideas on how to practice present perfect continuous in the classroom? Any games? I don't need web pages with fill in exercises I need some ideas about some games which could be played in the classroom but shouldn't last longer than 10 minutes!! THank you 
biology
need a list describing at least five similarities and three differences between plant and animal cells. In addition i need five internal structures of plant or animal cells and describe their functions in my own words. 
mat115
Need help with this math question and need to show work. A computer transmits 11 web pages in 4 seconds to a web server. A second commputer transmit 33 pages in 8 seconds to the server. are these two computers transmitting at the same speed. Yes or no and how? 
SOCIAL STUDIES
I am doing a country project on India. I need some good toursist attractions from India. I know a one and that's the Taj Mahal. But I need some more. Please list a few more tourist attractions, it will be a great help! thanks alot!!! 
easy math
for a project i need to graph numbers like: 3.456 billion, 92.07 billion etc. however i need to graph 1.009 TRILLION and 1.268 trillion. i wanted to keep the scale written as billions, how can i express the trillions as billions? thanks! 
easyish MATH
for a project i need to graph numbers like: 3.456 billion, 92.07 billion etc. however i need to graph 1.009 TRILLION and 1.268 trillion. i wanted to keep the scale written as billions, how can i express the trillions as billions? thanks! 
Public Administration/Politics
I need to come up with an essay topic that falls somewhere in the field of public administration. I've been drawing blanks, and I've got a proposal due before long, so I need to at least come up with a topic. Any help is appreciated! 
math
A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bellshaped and has a mean of 64 months and a standard ... 
chemistry
1.000 g of bronze was dissolved in the mixture of acids. The solution was transferred into 100 ml volumetric flask and filled to the mark. 10 ml aliquote of this solution was transferred into another 100 ml flask and diluted to the mark. 10 ml of the resulting solution was ... 
U.S History
I need to find a current day person who is similar to Al Capone. I need to write a paragraph on how my 20's persons accomplishments and/or conrtibutions are similar and different to those of my current day person. 
math
Can someone help me please? I have 4 equations that need to be matched up to different graphs. I need to know how to work the equations so I can match them to the graphs. 6y>153x 5x3<15 3x>=2y x y+x<=3 If you can show me how to work htese i can then match them ... 
Math
The regular admission price for an amusement park is $72. For a group of 15 or more, the admission price is reduced by $25. How many people need to be in a group to save $500? Need Answer step by step. 
physics
A car is traveling at 60 mi/h down a highway. a)What magnitude of acceleration does it need to have to come to a complete stop in a distance of 200 ft? b)What acceleration does it need to stop in 200 ft if it is traveling at 110 mi/h ? 
Math fractions
Holly had 30 pencils. She gave 6 pencils to her friends. Threeeighths of her remaining pencils need to be sharpened. How many of Holly's pencils need to be sharpened? How to write this problem in numerical? 
SCI 241
i need to know the path food follows through the digestive system and how digetion occurs in eachof the following parts of the digestive system.. I need to onclude descriptions of other organs or componentsnof the digestive system including: large intestine Mouth,small ... 
prefix and suffix
I need help finding a suffix word for ier ne ious es s uous I need a prefix word for franco Can anyone help me 
Need examples of variable and fixed inputs (micro)
I just need some example of fixed and variable inputs. 
American Sign Language
i need your help on my homework i need to check grammar and spelling in my American Sign language Paper can you help me with it. 
math
I need .5 feet of ribbon to make one decoration. How many feet of ribbon do I need to make 600 decorations? 
algebra
to make a cake, I need 7/8ths of a cup of granola. how much granola do I need to make 1/5th of that cake? 
managerial economics
Price 1 is 50, price 2 is 38.78. Quantity 1 is 100, quantity 2 is 169. solve the price elasticity of demand. what if our goal is to decrease price by 14% what if our goal is to raise quantity from 169 to 300 by how much percentage we should decrease price? 2=%Q/P 
chemistry(college)
A student reacts benzene,C6H6. with bromine. Br2. in an attempt to prepare bromobenzene. C6HSBr : C6H6 + Brl··_·_> C6HSBr + HBr (a) What is the theoretical yield of bromobenzene in this reaction when 60.0 g of benzene reacts with 60.0 g Brl? b) If the actual yield ... 
Math
Seth uses a school camera to take pictures for the yearbook and for the school paper. Last month he took 270 pictures for the yearbook and 180 pictures for the school paper with this camera. Which proportion can be used to determine p, the percentage of the total number of ... 
AP Chem
A sample of solid KCl (potassium chloride) weighing 0.500 g is mixed with an unweighed sample of solid MgCl2 (magnesium chloride) and the mixture is then completely dissolved in water to form a clear solution. An aqueous solution of AgNO3 (silver nitrate) is then added to this... 
chemistry
A sample of solid KCl (potassium chloride) weighing 0.500 g is mixed with an unweighed sample of solid MgCl2 (magnesium chloride) and the mixture is then completely dissolved in water to form a clear solution. An aqueous solution of AgNO3 (silver nitrate) is then added to this... 
Chemistry
I need to work out the density of the gaseous oxide of arsenic at STP in g L1 I realise density = mass/volume but my answer works out very high!! I have already worked out the volume to be 52cm^3 (Cubed). the mass to start with was 0.702g and at the end of the reaction was 0....