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September 30, 2016

Search: 12. How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7 g Fe?

Number of results: 22,247

chemistry
The heat fusion for napthalene (C10H8) is 18.98 kj/mol and for sodium is 2.60 kj/mol. The amount of heat that would melt 37.0 grams of napthalene would melt how many grams of sodium?
June 23, 2010 by Jim

chemistry
If the atmospheric pressure is not corrected for vapor pressure of water, what effect will this have on number of moles of oxygen calculated? Use numbers from your experiment and determine the percent deviation caused by this omission. Is this a significant error? this is a ...
September 3, 2010 by Anonymous

chemistry
Lead iodide, PbI2, has a Ksp in water of 7.1e-9 M3 at room temperature. Calculate the solubility of PbI2 in water. Express your answer in grams per liter. What is the solubility of PbI2 in 0.1 M NaI (aq)? Express your answer in grams per liter.
December 21, 2013 by Dick

Chemistry
Hello, I would greatly appreciate some help with the following problem, as I'm not sure how to proceed. I'm trying to find solubility (Ksp) of Cu(IO3)2 from titration experiment. The following equations were provided: Cu(IO3)2 --> Cu^2+ + 2IO3^- Ksp = [Cu^2+][IO3^-]^2 2Cu^2...
July 23, 2014 by Constantine

Chemistry
Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars everyday. Although the actual process also requires water, a simplified equation (with rust shown as iron(III) oxide (Fe2O3) is: 4Fe(s)+3O2(g) --> 2Fe2O3(s) delta...
February 21, 2010 by Kaylene

Organic chem
i have no idea how to do this! please help me :) 1a. When sodium benzyloxide is reacted with excess acetic anhydride it produces benzyl acetate and byproducts. What are those byproducts? If extracting with dichloromethane, what could be added to the aqueous layer to sequester ...
August 7, 2012 by Tasneem

Math
Stephanie got a travel pack of 4 aspirin each 500 ml. How many total grams are in the pack 0.5? A box of specialty baking flour holds 2 kg. How many angel food cakes can be made with a recipe that calls for 100 grams of flour? 0.1? Joey walks 4 kilometers to soccer practice. ...
November 6, 2012 by Jerald

chemistry
If 8.72 grams of oxalic acid, H2C2O4, a diprotic acid, is neutralized when 23.4 mL of a solution of KOH is added, what is the molarity of KOH? the topic is acid-base triation, and i have already converted the mass to moles,but I am having trouble finding the volume for the ...
April 9, 2013 by K

Chemistry
1)Buttermilk has 9 grams of protein and 12 grams of carbohydrate per cup (237ml). Estimate the concentration in mol/L of protein using the fact that the average protein is 300 amino acids long and the average amino acid has a mass of 110 amu. 2)Lactose (MW:342 amu) makes up ...
October 10, 2013 by qwerty

grade 9 science
only the largest noble gas atoms can be made to react chemically. but it is not stable and will result in decompostion. can plaese explain me what they are trying to say. i'm so confused!!!!! thanks
March 18, 2009 by rany

biology
Which of the following is NOT a function of hormones? a. initiate behavior and reproduction b. coordinate the production and use of energy c. maintain nutrition and metabolism d. react to stimuli from outside the body B?
December 2, 2010 by Lily

Reposting Chemistry College
Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.
April 15, 2012 by Lance

chemistry
Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen gas must react to give 49.0mL of NH3? 3H2(g)+N2(g)→2NH3(g)
November 25, 2014 by blank

Chemistry HELP!
A student placed 10.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...
February 12, 2009 by anonymous

calculus
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
December 18, 2013 by Danny Simone

chemistry
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
December 18, 2013 by Danny Simone

chemistry
Can somebody please help me with this question? That'd be great. Thanks! Determine the amount of heat needed in the following: the number of calories to heat 25 grams of water from 22 degrees celcius to 44 degrees celcius. Q= m c deltaTemp = 25g*1cal/gC*(44-22)C =25*22 ...
October 4, 2006 by Pyrgus

Math
You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physic. You purify a sample of 2 grams.One of you colleges steals half of it, and 3 days later you find that 0.1 grams of the radioactive material is still ...
September 16, 2014 by Eric

Chemistry
The density of pure gold is 19.3 g/centimeter cube. A quantity of what appears to be gold has a mass of 465 grams and a volume of 26.5 mL. Is the substance likely to be pure gold? please tell me how you got your answer. Thanks! density = mass/volume You know mass is 465 grams...
February 15, 2007 by Sarah

chemistry
Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 161 mL of distilled water and finds the water level rises to ...
September 7, 2009 by Sam

maths
1) A chemistry teacher requires 250 milligrams of a chemical for an experiment. He has 30 grams of the chemical. How many times can he carry out the experiment? 2) A bottle contains 1.5 litres of cola. Hannah drinks 300 ml of the cola and Ben drinks 450 ml.How much of the cola...
February 17, 2013 by paper

chemistry
Please help me through this problem... A 0.5117 gram fertilizer containing phsphorus was oven dried. The weight of the dried sample is 0.4998 grams. However, 10% moisture is still retained in the sample. Calculate the moisture content in the sample in as received and dry basis...
August 31, 2007 by smiley

chemistry
When excess solid Mg(OH)2 is shaken with 1.00 L of 1.2 M NH4Cl solution, the resulting saturated solution has pH = 9.30. Calculate the Ksp of Mg(OH)2 I am not sure where to even begin on this problem.
March 21, 2010 by Raj

Chemistry
If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9g of silicon carbide is produced. SiO2(s) + 3C(s) --> SiC(s) + 2CO(g) what is the percent yield of this reaction?
March 28, 2010 by Kim

chemistry please help!!!!!!!!!!!!!!!!!!!!!!
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?
May 31, 2010 by lulu

chemistry please help!
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?
June 1, 2010 by Anonymous

chemistry
Calculate the heat released when 4.260 L Cl2 with a density of 2.46 g/L at 25C reacts with an excess of sodium metal to form solid sodium chloride at 25C.
October 29, 2010 by caroline

chemistry
Calculate the heat released when 4.260 L Cl2 with a density of 2.46 g/L at 25C reacts with an excess of sodium metal to form solid sodium chloride at 25C.
October 31, 2010 by Emily

FMU
After 2.02 g of Al has reacted completely with 0.400 L of 2.75 M HCl (the excess reactant), what is the molarity of the remaining HCl? 2Al(s)+6HCl(aq)-->2AlCl3(aq)+3H2(g)
March 24, 2011 by Alex

Chemistry
A 2.3 g sample of C5H10O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 83.42 kJ of energy. What is the enthalpy of formation of C5H10O?
December 4, 2011 by Katie

science
0.042g of Magnesium was reacted with excess HCl at S.T.P. A. Write the equation for the reaction B. How many moles of Mg were used? C. What volume of Hydrogen is produced in this reaction?_
November 28, 2012 by sai

community umuokpu. Chemistry
if 50cm3 of Co2 were put in 40cm3 of O2. Determine the gas that would be in excess and calculate the volume of that would be unused
February 9, 2013 by Tessy

community umuokpu. Chemistry
if 50cm3 of Co2 were put in 40cm3 of O2. Determine the gas that would be in excess and calculate the volume of that would be unused
February 9, 2013 by Tessy

Chemistry
At 22 C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.49. What is the Ksp of the salt at 22 C? Is the ksp=1.38*10^-11?
March 17, 2013 by Anon

chemistry
Hydrochloric acid(75.0 ml of 0.250 M) is added to 225.0 ml of 0.0550 M Barium hydroxide solution. What is the concentration of the excess H+ or OH- ions left in this solution?
May 9, 2015 by Neriah

mass volume ratio
6.5g of zinc was reacted with excess HCL.calculate the volume of dry hydrogen gas. my work zn+2HCL-zncl2 + H2
October 1, 2015 by tosin

Gen Chem2
What would the two half reactions look like for Sr(s) reacting with excess 1M H4NHCO3. I really do not understand. It says that a precipitate and a flammable gas are among the products.
July 15, 2008 by Elisa

Chemistry
In the following equations determine which reactant is the limiting and which reaactant is in excess. 1. KCL + HNO3--->KNO3 + HCL 22.0g 18.3g 2. 2Al(OH)3 + 3H2SO4---> Al2(SO4)3 + 6H2O where there is 25 g of Al(OH)3 and 25g H2SO4.
August 3, 2009 by Ashley

Chemistery
How much heat is contained in 4 liter of liquid methanol (CH2OH) when it is completely combusted (excess oxygen) to form carbon dioxide and water. the density of metanol is 0.7918 g/ml.
October 30, 2010 by Lin

Biology
4.0 g of ferrous ammmonium sulphate, FeSO4(NH4)2SO4 6H2O, is used. Since the oxalate is in excess, calculate the theoretical yield of the iron complex. Please help with this question. Thank you.
November 16, 2010 by Serena

physics
A major-league pitcher can throw a baseball in excess of 40.2 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.7 m away from the point of release?
January 21, 2011 by josh

physics
A major-league pitcher can throw a baseball in excess of 44.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.7 m away from the point of release?
February 11, 2011 by Ziich

chemistry
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL?
August 3, 2011 by Astrid

physics
A major-league pitcher can throw a baseball in excess of 40.5 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.7 m away from the point of release?
January 19, 2012 by Anonymous

physics
A major-league pitcher can throw a baseball in excess of 40.5 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.7 m away from the point of release?
January 19, 2012 by Anonymous

Physics
A major league pitcher can throw a baseball in excess of 41.3 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.1 m away from the point of release?
March 4, 2012 by Anonymous

physics
A major league pitcher can throw a baseball in excess of 41.3 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.1 m away from the point of release?
March 4, 2012 by Anonymous

Physics
A major-league pitcher can throw a baseball in excess of 48.3 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 15.3 m away from the point of release?
April 12, 2012 by Nana

Physics
A major-league pitcher can throw a baseball in excess of 46.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.3 m away from the point of release?
September 11, 2012 by Jack

physics
A major league pitcher can throw a baseball in excess of 40.8 m/s. if a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 15.4 m away from the point of release?
September 18, 2012 by Anonymous

Physics 1
A major-league pitcher can throw a baseball in excess of 40.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 19.8 m away from the point of release?
September 18, 2012 by Anonymous

history
3. Among members of George Washington's cabinet, __________ had a pessimistic view of human nature and a dread of democratic excess. A. Hamilton B. Adams C. Jefferson D. Marshall
January 30, 2013 by shaun

physics
A major-league pitcher can throw a baseball in excess of 46.2 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 18.9 m away from the point of release?
October 14, 2013 by butcha

physics
A major-league pitcher can throw a baseball in excess of 46.2 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 18.9 m away from the point of release?
October 15, 2013 by butcha

chemistry
When you add 0.320 g of sodium metal to an excess of hydrochloric acid, you find that 3330 J of heat are produced. What is the enthalpy of the reaction as written below? 2Na(s) + 2HCl(aq) --> 2NaCl(aq) +H2(g
March 9, 2015 by Catherine

chemistry
When you add 0.567 g of sodium metal to an excess of hydrochloric acid, you find that 5890 J of heat are produced. What is the enthalpy of the reaction as written below? 2Na(s)+2HCl(aq)=2NaCl(aq)+H2(g)
April 13, 2016 by lex

physics
A major-league pitcher can throw a baseball in excess of 41.3m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 15.2m away from the point of release?
September 14, 2016 by Tessa

Please Help Fast
A student placed 10.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...
February 12, 2009 by anonymous

Chemistry
Hello! I am having a little difficulty answering these two questions on my homework, I was wondering if anyone could please help me out! Thank you! 1) Consider the following balanced chemical equation for the neutralization reaction of calcium hydroxide with hydrochloric acid ...
November 30, 2013 by T.C.

Algebra
I'm trying to learn the difference between conditional and identity equations. Can you please check my work?? 12). 3(x+2)=5x+4. I said conditional because on the one side x needed to equal negative two while on the other, it needed to equal -.8. 15). (4x+1)-2x=2(x+2) I said ...
September 27, 2009 by Bajisha

physics
A guitar string 60 cm in length, with a diameter of 1.4 mm and a tension of 289 N, emits a note with a frequence of 147 Hz. Find the frequency in each of the followig situations: a)the tension isreduced to 196N b)a string of the same material, 45 cm long and 1mm in diameter ...
January 2, 2010 by Sarah N H

Chemistry (check)
using the equation 2H+O--->2HO,______ of hydrogen will react with 6 mol of oxygen. Would "12 Mol" be rigt to fill in the blank? yes thanks!!
January 18, 2007 by Briana

Chemistry
10% of a sample reacts in 25 s. If the reaction follows first order kinetics, how long would it take for half the sample to react?
May 3, 2010 by mandy

chemistry
why will chlorine react in a water that is very clear but chemical has iron content?which turns it brownish.and what is the fastest why to remedy the water?
June 16, 2010 by florence

chemical equilibrium
if the pressure of n2/h2 in aclosed apparatus is 100 atm and 20 percent of the mixture then react ,the pressure at the same temperature would be
August 15, 2010 by bharat

3rd grade science
All living things respond in certain ways to ______ in their environment. A.. Changes B.. Respond C.. React
August 18, 2010 by mary

Chemistry
"How many moles of oxygen are required to react completely with 5 mol C(8)H(18)?" 2C(8)H(18) + 25O(2) => 16CO(2) + 18 H(2)O In the question, how do I know if "oxygen" means the molecule O(2) or the element O?
September 21, 2010 by Gray

chemistry
consider the reaction in which 410g of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement reaction ?
December 4, 2010 by obi

Chemistry
What is the maximum mass of the lower molar mass product that can be formed when 71.0 g of solid barium bromide and 44.5 g chlorine gas react?
April 10, 2011 by Robbie

Orgo
1. Calculate the number of moles of cyclohexanol used in the following reaction: 10.5 mL of cyclohexanol and 9mL of H2SO4 react to form cyclohexene
April 26, 2011 by Nicole

chemistry
Refer to the following unbalanced equation: C6H14 + O2 CO2 + H2O What mass of oxygen (O2) is required to react completely with 10.8 g of C6H14
November 7, 2011 by Anonymous

chemistry
help me find which reactant is the limiting reactant when 74 g NaOH and 44 g CO2 are allowed to react when the equation is (2NaOH+1CO2=Na2CO3+1H2O)
April 9, 2012 by corey

Chemistry
CH4(g) + 2O2(g) = CO2(g) + 2H20(g). What volume of O2 is required to react with 2.0 mol CH4 at 50 degrees Celsius and .500 atm?
February 18, 2013 by Maria

History
Helium doesn't react with any other substance. Is it accurate to say that helium has no chemical properties? Explain. Please help because I'm not sure of the answer. Thank you.
September 13, 2013 by Sarah

Science
Helium doesn't react with any other substance. Is it accurate to say that helium has no chemical properties? Explain. Please help because I'm not sure of the answer. Thank you.
September 13, 2013 by Sarah

Chemistry
What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?
October 7, 2013 by Connor

chem
What volume of carbon dioxide gas (at STP) is produced when 1.01 moles of oxygen gas react completely? 2CO + O2 -> 2CO2
November 10, 2013 by Dakota

Chemistry
Write the balanced net ionic equations for the reactions of the halogens with copper metal. The halogens are oxidizing agents and the copper metal is a reducing agent. a) Bromine (Br2)+copper metal (Cu) b) Iodine (I2) + copper metal (Cu) Based on your observations and ...
April 16, 2014 by Caroline

chemistry (drbob222)
[Ni(NH3)m(H2O)p]^2+ + mHCl ->mCl- + pH2O + Ni^2+ + mNH4^+ excess HCl + OH- -> H2O A .185 g sample of nickel salt was dissolved in 30.00 mL of 0.1013 N HCl. The excess HCl required 6.30 mL of 0.1262 N NaOH to reach the end point. Calculate the weight of the salt that ...
October 4, 2009 by Anonymous

math
how can i make the Protein content equal the same %. what did i do wrong? Breakfast: Flour protein Fat content = 2 grams 1 gram contains fat of 9 calories 2 grams contain fat of 9 x 2 = 18 calories Total quantity = 162 calories Fat content = (18/162) x 100 = 11.11% Protein ...
July 28, 2011 by tamika

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

chem+ help!
When 80.0 grams of a certain metal at 90.0 C was mixed with 100.0 grams of water at 30.0 C, the final equilibrium temperature of the mixture was 36.0 C. What is the specific heat (J/gC) of the metal? I suppose I would use this formula: q= mct m= mass(g) q= enthalpy change...
January 23, 2007 by bon

Chemistry
Fool's gold is not gold at all but only lead IV sulfide. If you have 751.0 grams of lead how many grams of fool's gold can you make? Ans: Pb+2S->PbS2 Given * (1/amu of given) * (mol of find/mol of given) * (amu of find/1mol)
November 18, 2012 by Maria

math
james brought a few hamsters. for each day after the first day of the week, the hamsters at 20 grams of food than the previous day. the hamsters grew fast, finishing 1260 grams of food in the first week. how much food did the hamsters eat on the first day?
March 31, 2013 by shohanur

math
james brought a few hamsters. for each day after the first day of the week, the hamsters at 20 grams of food than the previous day. the hamsters grew fast, finishing 1260 grams of food in the first week. how much food did the hamsters eat on the first day?
March 31, 2013 by shohanur

statistics
a study found 37% of a new technique resulted in pregnancy and in that technique 25% resulted in multiple births what is the probabilty that the new technique produced a pregnacy and multiple births what is probability that a random selected pregnancy did not produce multiple ...
June 6, 2013 by jane

Math 11u
A Computer company has been selling 1200 computer games per week at $18 each. Data indicates that for each $1 price increases, there will be a loss of 40 sales per week. It costs $10 to produce each game. Let x represent the number of $1 price increases. a)state the revenue ...
July 17, 2010 by Kerry

Inorganic chemistry
One kind of battery used in watches contains mercur(II) oxide. As current flows, the mercury oxide is reduced to mercury. HgO(s) + H2O(l) + 2e^- ==> Hg(l) + 2OH^-(aq) If 2.5x10^-5 amperes flows continuously 1095 days, what mass of Hg(l) is produced? (2.5x10^-5)(1095days)(...
April 14, 2009 by Steve

Physics
Two Balls of masses mA = 45 grams and mB = 65 grams are suspended as follows: both Balls are hanging by a 30 cm string and are vertically parallel to each other. The lighter ball is pulled away to a 66 degree angle with the vertical and is released, hitting the larger mass. a...
April 9, 2013 by Enzo

chemistry
URGENT!! You wish to prepare 1 L of a 0.02 M potassium iodate solution. You require that the final concentration be within 1% of 0.02 M and that the concentration must be known accurately to the fourth decimal place. How would you prepare this solution? Specify the glassware ...
October 11, 2010 by Martin

Chemistry_DRBob222
Hello Dear I hope everything gorse very well. I did not get any respond from you. I render my solution to the problem over CO2 aq. + H2O ...> H2CO3 how much PH can be put at for the above-equation under P = 3600 psi, T= 190 oF, 0.208 liters fresh-H2O as we know, 1.45 grams ...
April 19, 2014 by Ramtin

volume stoichiometry
Determine the volume of oxygen that is needed at STP to completely react with 5.63 g of potassium. 4K + O2 yields 2H2O I don't buy the equation. If K is reacting with oxygen, then the equation is 4K + O2 ==> 2K2O Actually, I think it forms K2O2. Do you have any information ...
March 19, 2007 by shelley

Physics
an 88kg cardboard box is being pulled along a level floor. the coefficient of static friction between the box and the floor is 0.23, and the sliding friction is 0.12. What is the weight of the box? What force is needed to start the box moving? What force is needed to keep the ...
October 29, 2012 by Zach

physics opinion
A common pickup for an electric guitar consists of a coil of wire around a permanent magnet. The permanent magnet induces magnetism in the nearby guitar string. When the string is plucked, it oscillates above the coil, thereby changing the magnetic field that passes through ...
May 16, 2012 by Alice

Algebra
Use this proportionality: A correlation V square 2/3 How much more material is needed to manufacture an industrial plastic container with twice the volume of a similar container? A manufacturer of plastic containers prices its product by the amount of plastic used to make the ...
November 26, 2011 by John

Calculus
The police department must determine a safe speed limit on a bridge so that the flow rate of cars is at a maximum per unit time. The greater the speed limit, the farther apart the cars must be expected to be in order to allow for a safe stopping distance. The total distance ...
November 9, 2012 by Max

Economics
As a manager of a financial planning business you have two financial planners, Phil and Francis. In an hour, Phil can produce either one financial statement or answer 8 phone calls, while Francis can either produce 4 financial statements or answer 10 phone calls. Does either ...
February 11, 2010 by Quinn

Chem Help!
I really need help for my homework on how to write the balanced equation for the following reactions. 1) Sodium reacts with iron(lll)oxide to produce sodium oxide and iron. Type of reaction: Balanced Equation: 2) Hydrogen bromide forms from hydrogen and bromine. Type of ...
April 8, 2008 by Lisa

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