i need the exat percentage of nitrogen in magnesium nitride
44,388 results, page 73

Statistics / Business
According to the National Humane Society, "Stray Cost" or the cost of the care and feeding for a stray dog is $419.00 per year. This amount does not include veterinarian care, but only food, water and shelter. It was found that the standard deviation of this "Stray Cost" was $... 
Chemistry
Hi everyone, I really need help with this problem. What is the reactant, products, and what compounds is it? Is it H2O, O2, or what? What are the transition molecules? Help please. Do as below to get to the image. I couldn't put the URL in and it isn't my website. I just found... 
statistcs
The authors generac generator produces voltage amounts with a mean of 125.6 volts and a standard deviation of 0.3 volt. using the Chebyshev's theorem, what do we know about the percentage of voltage amounts that are within 3 standard deviations of the mean? what are the ... 
Science
I need help with 2 questions please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. Wikipedia and other sites just gives me the definition of the law of conversation. 2. How are velocity, speed, and ... 
physics/calculus
I need help in calculating work. following quantites are given. * G: 6.67E11 *Mass of earth:5.98E24 *mass of satelightt:80kg *x(initial) center of the earth7E6 m *x(final) center of the earth 12E6 m How do I make integral equation I need use 20 interval. 
Statiatics
Need help please. Determine whether each experiment is a binomial experiment or can be reduced to a binomial experiment. If so, describe a trial, determine the random variable, and state n, p and q. a) You roll a die 15 times and find the sum of all the rolls. Just need this ... 
Re teachers year 8 Re
i need some help badly. i am learning about the 12 disciples of Jesus.i know the names but i need to write a sentence about each disciple and im not sure what to write. ive looked on google and on different websites but i am still struggling. i would be very grateful for some ... 
Math
Kerry skates laps around the playgroung. The playground is 150 meters long and 50 meters wide. How many laps will it take her to skate 1 kilometer? I need els really badly and I av a math test tommorow I need to study perimeter and area.... I old appreciate ur help. Tnx😊 
English
I'm just looking for some ideas for an essay on a Tale of Two Cities.... it can be anything related to the book... and I'm not asking you to do my schoolwork for me... I can develop the thesis and points but I just need some ideas... this is for a 4u course and I really need/... 
Math CSET
A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class scored below this student? I understand the 9684/4 part to obtain a zscore of 3. What I do not understand is, if I do not have access to a zscore to ... 
chemistry
3. A solution is made by dissolving 5.00 g of impure sodium hydroxide in water and making it up to 1.00dm3 of solution. 25.0 cm3 of this solution is neutralized by 30.0 cm3 of hydrochloric acid of concentration 0.102 mol/dm3. a) Calculate the number of mole of HCl. b) ... 
psy
I have to do an assignment on the following: I need to choose one of the following topic voting for your favorite political candidate joining a religious group refraining from driving under the influence of alchool or drugs I need to develop a plan to persuade my classmates. ... 
Science
i need help with this experimental design.the topic is...what happens to your image that is initially observed in a flat mirror from 10 feet away and then you move further away to 20 feet? But i need to know how do I make up procedures (stepsin outline form) for this ... 
Literature Essay (Writeacher)
Writeacher, I truly need your help. I must finish this essay tonight but I am struggling. I read my thesis statement along with the first body paragraph, but it doesn't correspond whatsoever! I think I may need to rewrite the entire first paragraph. I don't know what to do. 
Literature Essay (Writeacher)
Writeacher, I truly need your help. I must finish this essay tonight but I am struggling. I read my thesis statement along with the first body paragraph, but it doesn't correspond whatsoever! I think I may need to rewrite the entire first paragraph. I don't know what to do. 
Reading
i need to kno like the 3 main charaters and 2 conflicts abou the book the dark and deadly pool but joan lowery nixon please i reli reli need this!! thank you! Please read the book and tell us who you think the 3 main characters are and the 2 conflicts. We'll be glad to help ... 
Early Child Ed.
Are my answers to these questions correct? 1.Children with special needs often need: A. more teacher instruction in shorter amounts. B. increased childinitiated activities. C. more teacher instruction in longer amounts. D. fewer childinitiated activities. 2. Which one of the... 
math
A clerk spent his 35 hour work week as follows: 1/5 of his time in sorting mail; 1/2 of his time in filing letters; and 1/7 of his time in reception work. The rest of his time was devoted to messenger work. The percentage of time spent on messenger work by the clerk during the... 
English
Can somebody help me with commans? where do they commas go in these sentences? Or do they need them? 1) I give you homework becuase you need to learn commas. 2)If you fill in the commas you will be happy with your grade. 3) I will be happy as I grade you work if you show me ... 
math
At the greenhouse where you work you need to make soil and vermiculite mixtures for potting plants. Flowering bushes need a mixture of 70% soil and 30% vermiculite by volume. About how many buckets of vermiculite should you add to 5 buckets of soil? 
Math (Algebra)
A chemistry student needs to make 60 liters of a 30% alcohol solution. He has a 20% alcohol solution and a 40% alcohol solution in the lab. How many liters of each strength does he need to mix together *The system of equations I did was: a+b=60 & .2a+.4b=18. I may be wrong but... 
Math
Solve for x: 5/x+6+2/x^2+7x+6=3/x+1 5/x+5+2/(x+6)(x+1)=3/x+1 5(x+6)(x+1)/x+6+2(x+6)(x+1)/(x+6)(x1)=3(x+6)(x+1)/x+1 5(x+1)+2=3(x+6) 5x+5+2=3x+18 5x+7=3x+18 2x=11 x=11/2 or 5 1/2 is my method correct? and I need assitance checking my answer. Thanks for your help! You need to use... 
chemistry 12
Im doing a worksheet and i had to draw PE diagram which had the Ea(activation energy)at 80kJ and the enthalpy change is 40kJ. *All the reactants and products are gases Then it asks to describe what would happen to the diagram if the temperature dropped 25 degrees Celsius. Im ... 
chemistry
1. what gas law does the nitric oxide relate to and why? (**charles law, boyles law, combined gas or gaylusaacs law) 2. What gas law does nitrogen monoxide relate to? (**charles law, boyles law, combined gas or gaylusaacs law) 
statistics
if i have k = 36.86 +/ 4.78 and v = 113 +/ 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ... 
statistics
if i have k = 36.86 +/ 4.78 and v = 113 +/ 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ... 
statistics
Experts consider high serum cholesterol levels to be associated with an increased incidence of coronary heart disease .suppose that the logarithm of cholesterol levels for males in a given age bracket are normally distributed with mean of 2.35 and a standard deviation of 12 . ... 
chemistry
The quantity of antimony in a sample can be determined by an oxidationreduction titration with an oxidizing agent. A 6.35g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the ... 
chemistry
Iron can be produced by the reduction of iron(III) Oxide by carbon monoxide: Fe2O3 + 3CO > 2FE +3CO2 a) what maximum mass of CO2 could be produced from the complete reduction of 14.7g of Fe2O3? b) if 8.73g of CO2 gas was actually collected, what percentage yield of the ... 
science
hey im doing my science homework and i really need hel fast cuz i need a discription(definition), a sentence, and a pic. for thermal expansion, exfoliation, dissolution, oxidation, and hydrolysis i would look in my text book but none of those words are in there i know because ... 
psychology
need help on this assigment i need to know how can i start this assigment because im getting confuse on it. Assigment Because of DSM's powerful influence, it is important to be aware of its limitations. Analyze the four limitations discussed in the textbook: 1 The danger of ... 
Bus
I am trying to find useful informations on "whether its a good idea to open a Pizza Hut business in Winnipeg?" Can you help me find websites. I really need it for my case study where i have to research and write 2 page, but i cant seem to find any suitable information. I have ... 
Trigonometric prob.
Hi, my question is attached to the web below (picture), because I can't draw the diagram on here. Sorry for any inconvenience. Please help and thanks. imageshack . us/photo/myimages / 845 / img0043gx . jpg/ Sorry, the web address is spaced out so you need to put it together..... 
Chemistry
Hello! I really need help with this. Name the following salts according to the old ic, ous system and the stock system. a. CrS b. Cr2O3 c. CrI3 X 6H20 d. CuCl e. CuI2 f. CuBr2 x 4H20 g. HgCl2 h. Hg2Cl2 i. Fe (OH)3 I am totally lost. I don't know how to name these. I have so ... 
Geometry
I need help with vertices! The vertices of triangle FGH are F(1,1), G(3,5),H(6,0). Find the coordinates of the vertices after a refelection over the yaxis. I'm not sure how to do this. Is there a certain formula I need to know? The reflection across the yaxis negates the x ... 
History (Unit 2 History exam Unit 2 Lesson 10)
Hey guys! I need help in my History unit 2 exam for 8th grade, I was wondering if any of you took it yet and could help me with some of the questions... I really need help it's very hard! >.< Can u pretty please help? TT 
Math
Some college roommates want to make pancakes for their neighbors. They need 55 cups of flour, but have only a one third 1 3cup measuring cup. How many times will they need to fill their measuring cup? 
health care and social responsibilities
I need to write a paper about ethic in a health care facility. I need help writing a thesis to start my paper? How should I start? 
algebra
I am a manager at a hospital i have 1,176 hours in a week to be covered by my staff. How many 40 hour people would I need and how many 32 hour people would I need to cover the hours. 
Community psychology
Can some on think of a public meeting with board of directors that are like involved for a community I need to like a website do to need to write down the public meeting . 
physics
The average human has a density of 940 kg/m3 after inhaling and 1028 kg/m3 after exhaling. (a) Without making any swimming movements, what percentage of the human body would be above the surface in the Dead Sea (a lake with a water density of about 1230 kg/m3) in each of these... 
chemistry asap!
I'm having trouble solving this percentage concentration problem: A student wants to make 5.00% solution of rubidium chloride using 0.377g of the substance. What mass of water will be needed to make the solution? [g RbCl2/(g RbCl2 + g H2O)]x100 = 5.00 Solve for g H2O. A day ... 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air by producing calcium ... 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air by producing calcium ... 
Chemistry
A student dried a wet crucible with a kimwipe. A piece of kimwipe was left clinging to the inside wall of the crucible. The student did not see the piece of kimwipe when adding the NaHCO3KCl mixture to the crucible. The crucible and its contents were weighed and subjected to ... 
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 56 months and a standard ... 
Chem (edited)
The electrolyte from a car battery has H2S04 (aq) concentration of 4.5 per mol per litre and a density of 1.18g per ml What is the percentage by mass of H2S04 in the electrolyte? do you mean 4.5 mol per liter? This has absolutely no meaning: concentration of 4.5 per mol per litre 
Macro Economics
On April 20, 2008 your wealthy aunt will give you a bond with a par value (or a maturity value) of $10,000. Your aunt purchased the bond in 2003, and it matures on April 20, 2009. The bond pays a coupon rate of 8 percent. When it arrives, the bond will have one remaining ... 
statistics
Womenâ€™s heights are normally distributed with a mean of 162 cm and standard deviation of 16 cm. a. Define an random variable, X, and describe its full distribution including the mean and variance. b. What percentage of heights are greater than 180 cm ? c. What height is at ... 
chemistry Please who helps me stpe by step
2gm of mixture hydrated sodium carbonate na2c03 /OH20 and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated, using methyl orange as indicator and 22.5cc of 0.087N hcl were required for neutralization. Calculate the percentage of... 
Statistics
Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 13,838 bonds, 7,035 are good risk, 1,388 are medium risk, and the rest are poor risk. One bond is chosen risk? Write only a number as your answer. Round to two ... 
History
Currently citing a bibliography of Martin Luther King Jr as a Civil Rights Leader. I just can't find many sites that have exactly what I'm looking for. I need to know about what he did, what he did as a Civil rights leader. I keep on finding the same information about the ... 
English
I need an attention grabber for my essay about comparing 2 genres of media, a TV news show and a gossip website. Can anyone help me with an attention grabber, I've basically written the whole essay already I just need a really good attention grabber... Any Help? 
MATH
i really need help on this question!! I need to solve it using a system of two equations, the question says that an automobile radiator contains 16L of antifreeze and water. this mixture is 30%antifreeze. how much of this mixture should be drained and replaced with pure ... 
Functions
State the domain and range of each function. Justify your answer a) y=1/(x+5) b) y=√12x I know how to do domain and range, but I don't remember what shapes these form. It's not parabolas, is it? Then, to justify them, I need to draw them, so that's why I need to know ... 
Biology
Can someone help me. I need to know for nervous tissue, it's defined by ??? I have a worksheet and have gone through all the other ones, but my book or a web site hasn't helped me with finding the nervous tissue. I know the 2 kinds, neurons and glia, but need to know how it's ... 
AlgebraI really need help, please?
I have to solve sqrt(2x7) >=5 answers would be x>=16 x>=7/2 7/2<=x<=16 x<=16 I don't get this concept at all and I have 20 of these kinds of problems for homeowrkcan someone direct me how to start or give me an example or just help please? I really need to ... 
social studies
To what extent do consumers in advanced nations have an effect on the labour issues in developing countries? I know that advanced nations do have an effect, but I need to write an essay on this question and I will need to provide evidence and cite my sources to explain myself... 
Algebra 2
You need to earn $539 per week to afford the new car you want to purchase. Your work week is 46 hours. You get 1.5 times the regular hourly rate for overtime (anything over 40 hours). How much does your hourly rate need to be? (use step 14). 
English
Imagine that there are many children in your locality had missing their parents and they just sent to job by their families.Write a letter to editor of newspaper describing the sad plight of such children and the need to uplift them. And I need to get a formal letter to editor... 
Physics
I don't necessarily need an answer here... just a step in the right direction. If you drive into a wall at 5 m/sec, rebound at 1 m/sec, and make contact with the wall for .15 sec, with what force did the wall exert on the car? (mass = 220 kg) I can't really put my finger on it... 
Spanish Preterite Check!!!!
Could someone tell me if these are the only things that I need to know for the Preterite?  the time expressions the ar and er/ir endings the car,gar,zar endings for the yo form  no written accents: ir,ser,ver,dar are there any other irregular endings? I think what I wrote ... 
AP European History
How did Medieval Europe lay the groundwork for the rebirth of Europe (Renaissance)? What conditions existed that allowed Europe to evolve out of medieval conditions? I don't even know where to start, other than that I know that monarchs began to solidify their authority. What... 
Chemistry(explain Please)
How would i find the following? I just need an explanation. I'm stuck. I have many other questions like this and i need to know how to do them. The specfic heat of ice is 2.05 J/g. In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How ... 
Math
Store A usually sells a jacket for $72 but today I can buy it for $40. Store B usually sells the same jacket for $38 but today I can buy it for $18. Which store is offering the greatest percentage off the origanal price ? In which store would you buy the jacket/ Show all work ... 
statistics
A sample distribution (closely approximating a normal distribution) of a critical part dimension has an average of 11.85 inches and a sample standard deviation of 1.33 inches. The lower specification limit is 11.41 inches. The upper specification limit is 12.83 inches. What ... 
Science
Which fact provides the best evidence for the scientific theory of the evolutionary development of life on the earth? a. fossils are found almost exclusively in sedimentary rocks b. characterisitcs of simpler forms of life can be found in more complex forms of life c. only a ... 
Statistics
The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a standard deviation of 0.12 ounces. Every can that has more than 12.30 ounces of soda poured into it causes a spill and the can needs to go through a special cleaning ... 
math steve for your help
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 fes047h20 in the sample The answer 88.96% My ... 
Economics
Suppose that the objective of a union is to maximize the total dues paid to the union by its membership. Explain the union strategy, in terms of the wage level and employment level, under the following two scenarios. a)Union dues are a percentage of total earnings of the union... 
Average Body Fat
What is the average body fat percentage? 
college us history to 1877
you need to compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to America, religion, and ... 
math/algerbra
What is the equation for finding the midpoint? The midpoint of a line whose end points are (x1, y1) and (x2, y2) is ( (x1 + x2)/2, (y1 + y2)/2 ) hOw dO yOu find the x and y intercept if the equation is nOt in slOpe intercept fOrm? 4+5=7+8=2 When I doing my homework i don't ... 
the big idea of energy KS3
what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big idea of energy is? ... 
Chemistry
The following reaction represents the decomposition of hydrogen peroxide 2H2O2 > o2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of Hydrogen peroxide, H2O2? Please walk me through this one, I need more then just the answer, I need ... 
AP World History
Hi I need some help with my history homework I have answer all of the question I just need help with a few about the Sumerian civilization. I just want to get some idea so that I can research these topics better Social life what did they do what were their behaviours clothes ... 
MATH
sorry I posted this question before. I have been ill.I still need help. word problem Upright posts are to be placed at 9 inch intervals on 3 sides of a deck which measures a total of 36 feet. How many upright post will will be needed? 36/3=12, if i divide 12 by 9 it will not ... 
computer services
I need help to find more information about the computer service bureau Can anyone help me? What do I need to look under? The question I have to answer is "When the computer service bureau destroys or erases records, should the erasure be verified by the bureau to the phyician?" 
Statistics
A 2014 Gallup Poll of 1028 adults found that 216 thought abortion should be illegal in all circumstances, a decrease of 2 percentage points from the record high in 2009. We are 95% confident that between ___% and ___% of all adults thought abortion should be illegal in all ... 
Statistics
A 2014 Gallup Poll of 1028 adults found that 216 thought abortion should be illegal in all circumstances, a decrease of 2 percentage points from the record high in 2009. We are 95% confident that between ___% and ___% of all adults thought abortion should be illegal in all ... 
Statistics
M&M plain candies come in various colors. According to the M&M/Mars Department of Consumer Affairs, the distribution of colors for plain M&M candies is as follows. Color Purple Yellow Red Orange Green Blue Brown Percentage 18% 19% 21% 9% 9% 6% 18% Suppose you have a large bag ... 
economics
Calculate the percentage return on the security if the payoff to the security in one year is $1,000, ... security in one year is $1,000, $1,500, $2,000, or $2,500. 
Math
A mixture is 20% red paint, 35% yellow paint, and 45% water. If 5 quarts of red paint are added to 20 quarts of the mixture, what is the percentage of red paint in the new mixture? 
Chemistry
Consider a piece of gold jewelry that weighs 9.81 g and has a volume of 0.670 cm3. The jewelry contains only gold and silver, which have densities of 19.3 g/cm3 and 10.5 g/cm3, respectively. Assuming that the total volume of the jewelry is the sum of the volumes of the gold ... 
English
I urgently need you to check these few sentences.I need to reword sentence two. I need to convince them to start a partnership with our school. 1)Thank you very much for your last email. I really hope your teachers will agree to work on a common project in English. The topic ... 
Maths
There are 20 questions in a test. Faye answers 17 correctly. a. What fraction of questions does faye answer correctly? b. What percentage of the questions does Faye answer correctly? 
Math
I want to buy a house in 5 years. I need to have a down payment of $50,000. How much do I need to have today in order to have the down payment, if I can earn 5%? I have tried to figure this out and have arrived at 39200.00 
Biology
In order to predict the percentage of males and females three assumptions must be considered: 1. The X carrying sperm and Y carrying sperm have an equal chance of fetilization: 2. The egg and sperm combine at random: 3. the XX and XY zygotes have equal chance of development at... 
Math!
The table below shows the percentage of households that own a microwave in different countries. Construct a stemandleaf plot of the data. Country Percent Of Household With Microwave Ovens _____________________________________________________________ Argentina 97% ... 
algebra
The table below shows the percentage of households that own a microwave in different countries. Construct a stemandleaf plot of the data. Country Percent Of Household With Microwave Ovens _____________________________________________________________ Argentina 97% ... 
Biochemistry
All amino acids have two ionizable groups (an alphaamino group with pKa~9.3, and an alphacarboxyl group with pKa~2.2). Lysine also has an ionizable sidechain (R) with a pKa of 10.5. What percentage of the Lysine side chain is deprotonated at pH 11.5? 0.099% 9.1% 0.99% 90.9... 
science
Consider a piece of gold jewelry that weighs 9.35 g and has a volume of 0.690 cm3 . The jewelry contains only gold and silver, which have densities of 19.3 g/cm3 and 10.5 g/cm3, respectively. If the total volume of the jewelry is the sum of the volumes of the gold and silver ... 
Statistics
Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 13,838 bonds, 7,035 are good risk, 1,388 are medium risk, and the rest are poor risk. One bond is chosen risk? Write only a number as your answer. Round to two ... 
beh
briefly explain the disorder: Sleep disorder I know there alot but i just need to do the above and outline (Write) the current (trends)means by diagnosed.Current treatment options are discussed. i need try to and write 250 more words with about the above..... 
earth science
I need to draw a diagram showing delta, oxalate, tributary and meander. I also need to draw a diagram showing water table, zone of saturation, cone of depression, working well, dry well, aquitard, aquifer, spring, perched water 
Algebra
I need helop!A lawn a company charges an initial fee of $200.00 plus $50 per hour for labor costs. If h represents labor hours and c represents the cost what is the total cost equation and how do I work this out step by step, I need to understnad this! Thank You 
english
I need help with a nonverbal communication types: For example, for (1)the American Sign language...I need to give examples of workplace and lifestyle. (2) Proxemicsthe languge of space;example of workplace and lifestyle.Please tell me a ways to write these two so, that I can ... 
Intermediate Algebra
Solve using elimination method. If the system has no system or infinite number of solutions, state this. Please show all work. I need to show how I came about my answer. I need this as soon as possible please. I would appreciate any and all help!! 2x+2y=20 2x2y=4 
English Essay IMPRTNT
i have an English persuasive essay due tomorrow. this is the question: SHOULD SCIENTISTS BRING EXTINCT SPECIES BACK TO LIFE? my answer is a yes and i need to reasons. i have one and need help with the other one. can anyone please give me a reason? 
Math
Hi! I'm Julia Nae and I need help in this question: In a class of 50 students, 19 are girls. What percent of the class are boys? Pls. Just answer this quickly because I really need this tomorrow (Jan.22,2018). I'm living in the Philippines and tomorrow is this date so pls ...