Tuesday
September 2, 2014

Search: lead to an "efficient" allocation of resources

Number of results: 4,488

physics
the plumbing in an old house uses lead pipes (which are now considered hazardous). Hot water is run through a section of pipe, increasing its temperature from 19.4 C to 36.8 C. if the pepe is intially 3.90m in length, what is the change in the length of the pipe?
August 18, 2011 by Anonymous

chemistry
pleast help me work this prob lead is a toxic meatal that affects the central nervous system. a Pb-contaminated water sample contains 0.0011% Pb by mass. What vilume of the water in milliliters contains 115g of Pb? (assume that the density of the solution is 1.0g/ml
November 5, 2011 by swtnblk

chemistry
pleast help me work this prob lead is a toxic meatal that affects the central nervous system. a Pb-contaminated water sample contains 0.0011% Pb by mass. What vilume of the water in milliliters contains 115g of Pb? (assume that the density of the solution is 1.0g/ml
November 6, 2011 by swtnblk

health
Use 10 medical words discussed in this week’s reading to create a script of dialogue between two medical professionals. Use complete sentences, I just dont know what i should put as im not a doctor and do not know what symptoms could lead to something else
November 27, 2011 by Ashley.

Biology
Discuss two lifestyle factors (one for bone and one for muscle) that affect the growth, development, size and/or healing (positively or negatively of the tissue. Also state whether the factor can lead to a disease or disorder of the tissue.
July 15, 2012 by Cathy

Chemistry
I am supposed to name this using IUPAC method for binary compounds (i think) arsenic(111) sulfide silicon tetraiodide antimony (111)bromide ammonia gas lead(11) and the things in the brackets are supposed to be the roman numerals
February 13, 2014 by Sam

Chemistry - Solubility Product
What did you observe after the addition of dilute HCl to the saturated lead chloride solution? Explain observations using relevant chemical reaction. I observed that a white precipitate was formed. Not sure how to explain why it formed
March 29, 2014 by PleaseHelp

Physics
I only need help with part B. A 250W computer power supply is on 10 h per day. Part A If the cost of electricity is $0.15/kWh, what is the energy cost (to the nearest dollar) if this computer is used like this for a year (365 days)? 140 dollars Part B If this power supply is ...
February 19, 2014 by jen

Government
I have a paper to write. The topic is "Describe the ways that the government can effect the economy. Which is the way that provides the most impact on the economy? Why?" Can someone give me some references and resources to check under that deal with this topic? Thanks!
March 25, 2008 by Kasey

socials
how the hipc program be able to help poor developing countries goal be to reduce the debt load of higly indebted countries so their scarce resources be able to go towards poverty reduction programs rather than to debt servicing.
January 12, 2012 by Mohammad

Resources and references
Your composing a report. You realize using the word "option" over and over again. Which of the following references will help you find a different word with the some meaning? A: A spell Checkers B: A thesaurus C: AP style book D: Encyclopedia
June 26, 2013 by Sofiya

physics
A copper calorimeter can with mass .100 kg contains .160 kg of water and .018 kg of ice in thermal equilibrium at atmospheric pressure. If .750 kg of lead at a temperature of 255 degrees Celsius is dropped into the can what is the final temperature of the system if no heat is ...
November 15, 2007 by Jen

physics
A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water and 1.40×10^−2 kg of ice in thermal equilibrium at atmospheric pressure. If 0.900 kg of lead at a temperature of 417 degrees celsius is dropped into the can, what is the final temperature of the ...
December 5, 2009 by AE

Physics
A copper calorimeter can with mass .100 kg contains .160 kg of water and .018 kg of ice in thermal equilibrium at atmospheric pressure. If .750 kg of lead at a temperature of 255 degrees Celsius is dropped into the can what is the final temperature of the system if no heat is ...
October 18, 2010 by Katherine

science
How ionising radiation affect the cell, DNA and can lead to tumours /leukaemia? nothing too complex please note form will be fine, in which I can use it in my explanation. if you can please put it in your own words as I find it much easier to understand and explain in my ...
October 27, 2013 by Unknown

SCIENCE
How ionising radiation affect the cell, DNA and can lead to tumours /leukaemia? nothing too complex please note form will be fine, in which I can use it in my explanation. if you can please put it in your own words as I find it much easier to understand and explain in my ...
October 27, 2013 by Unknown

S.S
Which of the following minerals generates the most income for British Columbia? Copper<--- Zinc Lead Gold One reason many British Colombians feel a link to the countries of the Pacific Rim is because more than 15% have _____ ancestors. Hawaiian<--- Asian Australian French
March 3, 2014 by Help Please!!!

S.S
Which of the following minerals generates the most income for British Columbia? Copper<--- Zinc Lead Gold One reason many British Colombians feel a link to the countries of the Pacific Rim is because more than 15% have _____ ancestors. Hawaiian Asian<--- Australian French
March 3, 2014 by Help Please!!!

ap chem
I'm supposed to find the mass of NaCl in 1 L & the mass of H20 in 1 L. I'm given NaCl solution. 1% by mass. The Density is 1.071 g/mL. I know the answer for NaCl is 10.71 g, but I don't know where to start to get to this. Could you lead me in the right direction?
February 24, 2011 by dylan

Physics
You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that will be approximately...
May 1, 2010 by jesse

physics
If the average household uses electrical energy daily at the rate of 500. W, how much U-235 must undergo fission to supply this need for a year? (assume 200. MeV of energy are generated per fission and that the power plant is 46% efficient). 1. Energy used in Joules per year? ...
March 16, 2010 by sasha

language arts
indicate the Predicate Adjective & Participle of ea sentence: 1. Nearly 150 years later, a talented ballet dancer appeared in the same city. ANS: Part= talented, PA =same 2. Anna Pavlova's family was poor. ANS: PA = poor 3. Nevertheless, she joined into the famed Imperial ...
June 2, 2014 by need help

chem1 WORD PROBLEM!!
lead has an atomic number of 82;iron has an atomic number of 26; and copper has an atomic number of 29.how do the charges of the nuclei of these 3 elements compare?
October 12, 2012 by tyneisha

electrochemistry
Calculate the cell potential of voltaic cells that contain the following pairs of half-cells. a)A half-cell containing both HgCl2 and Hg2Cl2; lead in a solution of Pb2+ ions.
August 1, 2010 by sma

chemistry
Calculate the cell potential of voltaic cells that contain the following pairs of half-cells. a)A half-cell containing both HgCl2 and Hg2Cl2; lead in a solution of Pb2+ ions.
August 1, 2010 by sma

Microecomonics (need to see if i got these right
1. Microeconomics deals with: (Points: 3) the working of the entire economy or large sectors of it. economic growth. individual units in the economy. THIS ONE I PICKED all of the above. 2. The basic concern of economics is: (Points: 3) to keep business firms from losing money...
November 20, 2008 by Heidi

human resources
two aspects of a performance appraisal from the following list. What are the special challenges in each area and what would be the impacts on employees and employers if the challenges were not addressed? o Strategic Relevance o Criterion Deficiency o Criterion Contamination o ...
November 2, 2007 by tammy

english question
i think its A.?? What are some ways to avoid plagiarism? A.only using the main ideas and important details from the website B.By giving credit for others’ ideas, images, and information found in various resources C.Using quotation marks D.All of the above
May 20, 2014 by matt

Chemistry
I keep reading that lead is a poor electrical conductor, but I would like to know the chemistry of why exactly it is a poor conductor.
February 20, 2010 by Sara

Chem
The mass of a cube of iron is 277 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
September 20, 2012 by Reg

chemistry
What are the acids and bases of the following salts? Na3PO4 PbS KIO3 Do you meant on dissociation? phosphoric acid, sodium hydroxide lead hydroxide, hydrogen sulfuric potasslim hydroxide, idoic acid. I am not certain of your question.
May 19, 2007 by Carter

Economics
Who gets scarce resources in a market economy? A) the government B)whoever is willing and able to pay the price C)whoever wants them D)Whoever the government decides gets them
January 10, 2011 by Anonymous

math
The Ministry of Finance published the FY2009 Tax Reform ( Main Points) on December 19, 2008. Included in the Reform is the introduction of a 2- year measure allowing immediate depreciation for investment in energy- saving facilities and appliances. If this measure doubles the ...
November 14, 2011 by Anonymous

math
The Ministry of Finance published the FY2009 Tax Reform ( Main Points) on December 19, 2008. Included in the Reform is the introduction of a 2- year measure allowing immediate depreciation for investment in energy- saving facilities and appliances. If this measure doubles the ...
November 17, 2011 by Anonymous

marketing
13) Which of the following would probably NOT be in a proposed marketing plan? A. A list of what company resources (costs) would be required. B. Expected sales and profit results. C. A description of the target market and marketing mix. D. A statement of how frequently the ...
April 26, 2010 by Anonymous

Principles of Business
The term 'human resources' refers to: (A)persons available for productive and professional services (B)raw materials used in the manufacture of goods (C)materials and goods made by human beings (D)capital invested by shareholders in company
April 3, 2011 by Sasha

information literacy
In which part of the Career Center in the Penn Foster student library is there a link for the Occupational Outlook Handbook? A. General Resources B. International Job Services C. Employment Sources—General D. Employment Sources—Specialized My answer is a
January 15, 2012 by tasha

chemistry
OKOK I know that I have posted this question but I just don't understand the last part. 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate at 25°C. Calculate the Pb2+ and IO3- concentrations when the mixture comes ...
May 16, 2007 by mel

SCIENCE
Help. Am I right or wrong. The use of a plant crop to harness the sun's energy for conversion to energy sources is termed ___________ Bioconversion? Check these sites for your answer. http://www.teachersdomain.org/resources/tdc02/sci/life/oate/energyflow/index.html http://www....
May 30, 2007 by Meg

biology holly leaf miner
can anyone please explain the term regulating mortality factor (regarding the holly leaf miner )and how understanding of this can lead to successful biological control of pests in agriculture and horticulture
April 3, 2007 by Bex

planning
In three to five sentences, answer the following questions. 1.Where do I picture myself five years from now? What am I doing? Where am I going? 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream? 1. Five years from ...
August 30, 2010 by Anonymous

com140
Suggest two tips for creating academic documents not mentioned in the resources. Which guidelines are most important for formatting? Which guidelines are less important to a business document but more important to an academic paper?
October 15, 2009 by keya

ABC
BusinessWeek, in an article dealing with management, wrote, “When he took over the furniture factory three years ago…[the manager] realized almost immediately that it was throwing away at least $100,000 a year worth of wood scrap. Within a few weeks, he set up a task force of ...
January 18, 2010 by xyz

coefficient
test using the lead coefficient to find out if y arrow oo, or y arrow-oo as x arrow -oo y=-5x^3+4x^2+6x-7 n is odd -5x^3 an<0 -5x^3 y arrow -oo as x arrow oo Is this right or do I need to go back and try again??????
April 3, 2008 by Gabe

English
Can somebody please help me write a summary news lead using the story below. The lead may be no longer than 20 words and must be written in the active voice A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 p.m. yesterday afternoon. The owner of ...
May 20, 2013 by Afranko

human resources
melda is a careful decision maker who has a reputation for taking a long time to make decisions. She is very thorough in collecting information and evaluating more alternatives than other managers are. Imelda is probably __________ in her decision-making style. analytical ...
July 31, 2012 by Anonymous

Global Studies
Which of the following minerals generates the most income for British Columbia? A. lead B. zinc c. Gold d. Copper <<< One reason many British Columbians feel a link to the countries of the Pacific Rim is because more than 15% have ____ancestors. a. Hawaiian <<&...
March 12, 2014 by vanessa

science question
If changing conditions lead to decreased oxygen levels in a stream, the carrying capacity of the stream for fish will decrease. Oxygen level in water is therefore a ______with respect to the number of trout that stream can support. Any idea?
March 18, 2014 by Ace1

chemistry
ho do you calculate final temperature? anyone please help thanks that's a little vague. Are you dealing with ideal gases? If so you would use the formula PV=nRT P = pressure V = volume of container n = moles (grams/molar mass) R = gas constant (0.0821) T = temperature sorry ...
March 15, 2007 by shannon

HCS/325 Health care management
In the rolee of a health care manager, you are expected to respond to daily urgent and emergency situatuions as they arise by mobilizing your staff and available resources to attain specific objectives. How would you describe the finction of control involved here?
April 12, 2011 by Annia

Geography
Which statement is not a benefit of increased development? A)improved access to health care B)increased wealth C)more even distribution of resources D)reduced unemployment i think i might be (B) beacuse it is not benefit the increased development.
March 10, 2010 by nicky

DBQ Essay (plzz read!)
here is my DBQ essay so far BUT it's NOT done tho. Sectionalism – The Civil War From the 1820’s to the 1860’s the North and South had different thoughts over slavery. It expanded through different sections of America. The North and South started to develop new ways in ...
May 31, 2012 by Laruen

Management 330
Please can you help me put an Organizing Paper together: 1050 Word paper - Evaluate the function of management at Delta Airlines as it relates to Physical assets, Human resources and Knowledge. Please cite at least two references
March 10, 2008 by Maria

human resources
The R&D organization has decided it wants to promote total involvement and create a learning organization. The community-building meeting is the mechanism to move this forward. You have decided to bring in other consultants from the Working Better Group to help you plan this ...
May 11, 2012 by Fred

Psy 270
Where can I find the best resources to research this question besides the text book? Psychology has many applications in our lives, both professionally and personally. How might having a background in psychology help you in your professional life? How might it help you in your...
May 28, 2014 by Ron

English
Writeacher, Thank you for your help!! I am trying to rewrite a cover letter, trying to reword so I can put some of the requirements for the job into my cover letter. One of the paragraphs reads - You will find me a loyal, personable, and dedicated individual, with the ability ...
August 8, 2008 by Ann

anatomy
Tonsillitis, Hepatitis B, Reyes Syndrome, and chicken pox, Which one of these if left untreated can lead to heart disease and kidney failure Hepatitis B devistates the kidneys, and at the end, congestive heart failure is not uncommon.
May 19, 2007 by blondie

Physics
A 46% efficient device uses chemical energy to generate 570J of electric energy. 1. How much chemical energy is used? 2. A second device uses twice as much energy to generate half as much electric energy. What is its efficiency?
December 4, 2012 by Anonymous

Medical office procedures
Describe three situations where the actions of a medical assistant were influenced by laws and regulations related to the release of personal and medical information of a patient. We are also to use resources available to you including your personal experiences to complete the...
January 23, 2008 by Jessica Blumberg

Algebra
Solve by using the quadratic formula x^2=-7x+12 First, put all the terms on one side. x^2=-7x+12 x^2 + 7x -12 = 0 If the original sign for the 12 were negative, this would lead you to: x^2 + 7x + 12 = 0 This could factor into: (x+3)(x+4) = 0 However, as you have formula posted...
July 12, 2007 by PLEASE HELP

Planning
Hey, I have another question from my assignment. 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream? My dream is to become a dental hygienist or a family physician one day, and along with that to be cashier. Im ...
August 28, 2010 by Anonymous

science-biology
I'm pretty sure the answer is A, am I correct? Natural selection tends to A) increase the frequency of characteristics that enhance survival and reproduction. B) decrease the number of individuals in any given population. C) lead to an increase in genetic drift. D) decrease ...
December 7, 2011 by jon

College Physics
Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false? 1)The internal energy is always the same at the beginning and at the end of one cycle. 2)The absorbed and the exhausted heat have the same magnitude. 3)...
November 22, 2010 by Tracy

Economics
Ross Perot added his memorable “insight” to the debate over the North American Free Trade Agreement (NAFTA) when he warned that passage of NAFTA would create a “giant sucking sound” as U. S. employers shipped jobs to Mexico, where wages are lower than wages in the United ...
November 5, 2011 by GG

Health (Ms. Sue)
1. Describe how overtraining can lead to chronic injury. A: Overtraining,a condition that occurs as a result of exceeding the recommendations of the FITT formula, can lead to chronic injury as repetitive activity causes stress to bones, ligaments, tendons, or muscles. ...
November 4, 2013 by Anonymous

Economics
Determine whether each of the following would cause a shift in the aggregate demand curve, the aggregate supply curve, neither, or both. Which curve shifts, and in which direction? What happens to aggregate output and the price level in each case? a. The price level changes b...
September 6, 2006 by Jeffrey

English 2 Animal Farm
Among the various characters in the novel, whom do you feel is the noblest or most worthy? Which animal would best suited to lead a group against Napoleon and the pigs? What qualities would this animal need to posses to do so?
May 15, 2012 by ken

social studies
looking for specific info. # of soldiers in Pacific, in europe. type of warfare in each arena i.e. guerrilla, isl. hopping etc. when they left each arena length of their terms After soldiers return- any lasting conditions(post-traumatic etc.) #that returned, killed the history...
November 1, 2006 by Lisa

physics
If a pulley is 57% efficient and you lift a 35kg box 5m how much work do you do? 1716.75 N*m A crane that is 13m long and is at a 20 degree angle to the ground can hold a load of 296N. What is the torque on the crane? 1,316.10 N*m A cylinder with a radius of 1.3m has a mass ...
February 1, 2007 by anonymous

history
Why did stalin refuse marshall aid? IS this evidence that he oppressed his people and escalated the tension during the cold war? he created COMECON instead of accepting marshall aid- did comecon lead to downfall of soviet union?
May 27, 2009 by aly

writing/history-QUICK PLEASE
Hi, I'm trying to write a good lead for my research paper on Confucius. I'm using the "snapshot" method. So, I need an important event in Confucius' life that I can describe in writing. PLEASE HELP!!!! THANKS IN ADVAVCE! -aShLeY
January 21, 2010 by Ashley

Homeostasis
In terms of ultimate causes, why is it that genetic conditions that lead to mortality or disability in older individuals (post fifty years old) are much more common than genetic conditions that cause death or disability in young people?
February 4, 2012 by Bla

English - ms. sue
ms. sue for my metaphor, i write one line that say trees losing leaves lead to new growth of them, so i not let myself get disappointed if a write something poorly i believe in hope... i not know what add after hope.
April 22, 2012 by Mohammad

chemistry
The following molecular equation represents the reaction that occurs when aqueous solutions of lead(II) nitrate and magnesium chloride are combined. Pb(NO3)2 (aq) + MgCl2 (aq) PbCl2 (s) + Mg(NO3)2 (aq) Write the balanced net ionic equation for the reaction.
March 3, 2014 by kammy

Math
If I have 4 people and I want to take a picture of them standing side by side, how many total different combinations can I use? If I have 5? if I have 10? Is there a mathematical equation that would figure out the total no matter how many people I start with? If person A can ...
January 31, 2007 by K.

chemistry
When 47.5J of heat are added to 13.2 g of liquid, its temperature rises by 1.72 degrees C. What is the heat capacity of the liquid? A cook wants to heat 1.35kg of water from 32.0 degrees C to 100 degrees C. If he uses combustion of natural gas to heat the water, hou much ...
September 21, 2012 by Alyssa

6th grade science
1. earth has only a limited amount of land, yet land is a renewable resource, why? 2. trees are renewable resources, but some forests are not, why? 3. compare and contrast minerals and ores. 4. how could using ores contribute to an increase in air pollution?
January 13, 2009 by johnnetta

HEALTH SERVICES
As an administrator, justify the reasoning behind provider-based delivery and develop a complete launch plan, including a budget and consideration of environmental factors. You must determine how data will be used to support the new service, and consider human resources issues...
July 16, 2008 by TOYA

science
Hi i have a science exam soon and we got given a revision sheet and i dont get this question.... Please help! Q1. What is the name of the mineral (ore) in which the following metals are found: a)silver b)aluminium c)copper d)iron e)manganese f)nikle g)lead h)tin i)titanium j)...
November 13, 2008 by JESS

psy/201
I need help finding two website that are credible to answer this question. Locate two resources on the Internet that explain meditation techniques. Copy and paste the web address into the top of the matrix. After reviewing the website, provide a brief summary for each source
November 3, 2012 by sade c

psy/201
I need help finding two website that are credible to answer this question. Locate two resources on the Internet that explain meditation techniques. Copy and paste the web address into the top of the matrix. After reviewing the website, provide a brief summary for each source
November 3, 2012 by sade c

music
I need help studying for my term. I need to know how to identify stuff on a staff or musical notation. Like clefs, notes, signatures, etc... How should I remember these? Are there any online resources? I also need to define terms. How do I remember these terms for the finals?
January 24, 2008 by william

business
Describe the problem of unlimited wants and limited resources. Kids want an infinite number of candy bars. There are less than an infinite number of candy bars for sale in the universe. This creates an imbalance.
August 30, 2006 by Anonymous

human resources
A process involveds drilling holes that are supposed to be 3 inches deep. If it is known that the quality cost of a hole drilled 2.95 inches deep is $5.00, what is Taguchi's quality loss function for this process?
April 19, 2010 by Loretta

social studies
list some jobs people can do that use few resources. I can't think of one so please DON'T give me any websites but please LIST a few jobs. It would be a great help.
May 18, 2010 by rakhi

Health Care
How do the human resources laws or health care regulations impact performance appraisals? What are the legal implications a manager must consider when conducting performance appraisals?
January 20, 2010 by pj

writeacher,religion
Have i answered this correctly or even have some points here I tried to my best of my abilities. How did the childhood experiences of Siddhartha Guatama (Buddha) lead to his questioning of the spiritual practices of his time? Siddhartha Guatama childhood experiences lead to ...
January 8, 2007 by kailin

managerial economics
Help!!! Business Week, in an article dealing with management, wrote, "When he took over the furniture factory three years ago...[the manager] realized almost immediately that it was throwing away at least $100,000 a year worth of wood scrap. Within a few weeks, he set up a ...
February 16, 2008 by jean

MBA Econ
Business Week, in an article dealing with management, wrote, "When he took over the furniture factory three years ago...[the manager] realized almost immediately that it was throwing away at least $100,000 a year worth of wood scrap. Within a few weeks, he set up a task force ...
May 20, 2009 by Nick

Managerial Economics
Ross Perot added his memorable “insight” to the debate over the North American Free Trade Agreement (NAFTA) when he warned that passage of NAFTA would create a “giant sucking sound” as U. S. employers shipped jobs to Mexico, where wages are lower than wages in the United ...
October 31, 2010 by Dede

world history
1. How would you explain the similarity between Christian idea to share for the well being of the community and Rousseau’s general will/ environment shapes peoples behavior? and 2. How did ancient Greek philosophers and French philosophers ideas of the 18th century lead to ...
October 11, 2010 by Jazmyne

chemistry
20.0 mL of a 0.125 M solution of potassium iodide is added to 15.0 mL of a 0.235 M solution of lead (II) nitrate. A reaction occurs via the balanced equation below: 2KI(aq)+ Pb(NO3)2(aq) --> 2KNO3(aq) +PBI2(ppt) How much product can theoretically be produced in the reaction...
September 1, 2012 by Brunette

gen
I need 2 resources for Head start please I need help with these please.. This is how the organization or association may contribute to increasing professional knowledge and abilities are by This knowledge and these abilities may affect success in my field of interest is by
August 11, 2009 by troyer0269

human resources
Discuss the pay and compensation you receive at your most recent place of employment and what aspects of compensation are most important to you? How important is direct pay and bonuses?
January 28, 2013 by kim

physiology
If the mean P-Q interval voltage is 1mV, and the peak of the R wave for lead I and III are 2mV and 5mV, what are the true values for R wave amplitude in these leads? a. 2 & 4mV b. 2 & 5mV c. 1 & 4mV d. 1 &7mV e. 1 & 5mV
October 17, 2010 by fino

chemistry
Estimate the fraction of unoccupied atomic sites in lead at temperature 10K below its melting point. Vacancy fraction,nv/N temperature 1.8*10^-7 100C 7.2*10^-6 200C express answer in vacancy fraction nv/N.
April 27, 2013 by anonyms

Organic Chemistry - Extraction
You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30 g. The distribution coefficient of benzoic acid in diethyl ether and water is approximately 10. Calculate the amount of acid that would be left in ...
October 3, 2010 by Camille

Environmental Sciencee
2. The water resources of the Earth are located in a. salt water fround in the ocean b. fresh water found in icecaps and glaciers c. fresh water found in rivers, lakes, and streams d. all of the above D
January 19, 2010 by y912f

chemistry
Please I need help...I have been trying so hard to finad this answer... Suggest a test chemical that can be added to the water sample to precipitate the lead(II) ions. please show a chemical eqaution for the formation of the precipitate. Thank u so much:)
April 25, 2010 by Stacey

Phyiscs
A 5.00g lead bullet is fired into a wooden fence post. The initial speed of the bullet is 250m/s, and when it comes to rest, half its kinetic energy goes into heating bullet. How much does the bullet's temperature increase?
November 25, 2012 by noname

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