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Lauren

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A patients drip bag is hung a high on a stand.The liguid flows into their blood to give them food or drugs.Explain why the bag
1. 1 answer
2. 621 views
guinea has about how much of the worlds bauxite reserves (percentage)?
1. 1 answer
2. 310 views
Congo and Gabon won their independence from what European country?What west african country has the largest population in
1. 7 answers
2. 1,200 views
What might happen to a inflated ballon if you take it up a mountain?
1. 1 answer
2. 350 views
I am working on a project that has to deal with Break even points, fixed cost and varible cost, I am not understanding how to do
1. 2 answers
2. 543 views
The graph and table below give the monthly principal and interest payments for a mortgage from 1999 to 2004. Use this
1. 1 answer
2. 428 views
The reaction 2NO + Cl2 <==> 2NOCl has Kc= 210 what is the equilibrium concentration of NO in moles per liter given the following
1. 1 answer
2. 752 views
Our teacher gave us a scenario we have to prepare to solve for a lab tomorrow:He has one of those toy flying airplanes suspended
1. 1 answer
2. 535 views
In the four steps of "AEROBIC CELLULAR RESPIRATION" where do the Intermediate Step take place in a cell; Krebs Cycle - Where
1. 0 answers
2. 617 views
Please check my answer thanks :)True or False If an enrollee uses more services then first thought they would per the PPOM
1. 2 answers
2. 509 views
Please check my answer thank you :)How are children hospitals paid ? (excluded from Medicare acute care PPS) My answer they are
1. 1 answer
2. 504 views
how do you say when
1. 1 answer
2. 284 views
please check my answer thank you very much :)Which health insurance program is designed to complement the retirment survivor ,
1. 1 answer
2. 450 views
What do these phrases mean? I can't find a good spanish to english translater.Al Cafe es el cultivo principal del Valle Central
1. 3 answers
2. 969 views
A second order reaction has a rate constant of 8.7x10^-4/(M*s) at 30 degrees C. At 40 degrees C the rate constant is
1. 0 answers
2. 784 views
The reaction 2B--->C + 2D is found to be zero order when run at 990 degrees C. If it takes 3.3X110^2 s for an initial
1. 0 answers
2. 1,249 views
Hi,I am doing a summary assignment on the Temperate Deciduous Forest Biome and i need help finding "Highlights of abiotic and
1. 0 answers
2. 524 views
Could you help me formulate a hypothesis that explains the changes in population of the yellow-headed blacbird.Factors that
1. 2 answers
2. 499 views
What is an easy way to find the orthocenter of a triangle?
1. 4 answers
2. 677 views
The reaction X + Y --> Z the reaction rate is for to depend only upon the concentration of X. A plot of 1/X versus time gives a
1. 0 answers
2. 460 views
what is the rate law of S2O8^2- + 3I---> 2SO4^2- + I3-
1. 0 answers
2. 796 views
An aqueous solution of a non electrolyte boils at 100.32 degrees C. The expected freezing point for this solution is ______?(Kb
1. 1 answer
2. 692 views
The foreces of attraction between molecules of I2 are:covalent bonds ionic bonds dipole-dipole attractions london forces
1. 1 answer
2. 1,127 views
The reaction X + Y --> Z the reaction rate is for to depend only upon the concentration of X. A plot of 1/X versus time gives a
1. 0 answers
2. 524 views
what is the rate law of S2O8^2- + 3I- ---> 2SO4^2- + I3-
1. 1 answer
2. 1,137 views
Washing soda is added to hard water to allow soap to lather.A certain brand of washing soda contains partially hydrated sodium
1. 1 answer
2. 947 views
Dr. Bob, can you please tell me if I did my chem questions right...they have been sitting down there all day and all i need is
1. 0 answers
2. 513 views
To obtain the rate of the reaction3I-(aq) + H3AsO4(aq) + 2H+(aq) --> I3-(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3
1. 0 answers
2. 1,146 views
What is the molecularity of each of the following elementary reactions?A. O+O2+N2----> O3+N2+ B. NO2Cl + Cl---> NO2 + Cl2 C. Cl
1. 0 answers
2. 896 views
The thermal decomposition of nitryl chloride NO2Cl,2NO2Cl---> 2NO2 + Cl2 is thought to occur by the mechanism shown in the
1. 0 answers
2. 1,362 views
Write a rate equation showing the dependence of rate in reactant concentrations for each of the following elementary reactions.a
1. 1 answer
2. 603 views
The decomposition of ozone is believed to occur in two stepsO3 <==> O2 + O O3 + O ---> 2O2 Identify any reaction intermediate.
1. 0 answers
2. 831 views
To obtain the rate of the reaction3I-(aq) + H3AsO4(aq) + 2H+(aq) --> I3-(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3
1. 0 answers
2. 1,238 views
Iodide Ion is oxidized to hypoiodite ion IO- by hypochlorite ion ClO- in basic solution. The equation isI- + ClO- --- IO- + Cl-
1. 1 answer
2. 1,580 views
In a kinetic study of the reaction2NO(g) + O2 --> 2NO2(g) the following data were obtained fro the initial rates if disapperance
1. 0 answers
2. 825 views
What is the molecularity of each of the following elementary reactions?A. O+O2+N2----> O3+N2+ B. NO2Cl + Cl---> NO2 + Cl2 C. Cl
1. 1 answer
2. 2,016 views
The thermal decomposition of nitryl chloride NO2Cl,2NO2Cl---> 2NO2 + Cl2 is thought to occur by the mechanism shown in the
1. 0 answers
2. 1,133 views
Write a rate equation showing the dependence of rate in reactant concentrations for each of the following elementary reactions.a
1. 0 answers
2. 503 views
The decomposition of ozone is believed to occur in two stepsO3 <==> O2 + O O3 + O ---> 2O2 Identify any reaction intermediate.
1. 0 answers
2. 990 views
To obtain the rate of the reaction3I-(aq) + H3AsO4(aq) + 2H+(aq) --> I3-(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3
1. 0 answers
2. 498 views
Iodide Ion is oxidized to hypoiodite ion IO- by hypochlorite ion ClO- in basic solution. The equation isI- + ClO- --- IO- + Cl-
1. 1 answer
2. 1,494 views
In a kinetic study of the reaction2NO(g) + O2 --> 2NO2(g) the following data were obtained fro the initial rates if disapperance
1. 1 answer
2. 892 views
Iron (II) ion is oxidized by hydrogen peroxide in acidic solution.H2O2(aq) + 2Fe2+(aq) + 2H+(aq) ---> 2Fe3+(aq) + 2H2O (l) the
1. 0 answers
2. 879 views
For the reaction of nitric oxide, NO with chlorine Cl22NO(g) + Cl2(g)--> 2NOCl(g) the observed rate law is k[NO]^2 [Cl2] what is
1. 1 answer
2. 1,129 views
Nitrogen Dioxide NO2 decomposes upon heating to form nitric oxide and oxygen according to the following equation:2NO2(g) -->
1. 4 answers
2. 3,295 views
Iron(III) chloride is reduced by tin(II) chloride.the concentration of Fe3+ ion at the beginning of an experiment was 0.03586M.
1. 3 answers
2. 1,118 views
for the reaction of hydrogen with iodineH2(g) + I2(g) --> 2HI(g) relate the rate of disappearance of hydrogen gas to the rate of
1. 2 answers
2. 2,979 views
To obtain the rate of the reaction3I-(aq) + H3AsO4(aq) + 2H+(aq) --> I3-(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3
1. 0 answers
2. 990 views
At time t = 0s, a puck is sliding on a horizontal table with a velocity 3.00 m/s, 65.0 above the +x axis. As the puck slides, a
1. 2 answers
2. 4,187 views
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved
1. 3 answers
2. 1,474 views
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in
1. 1 answer
2. 592 views
Indicate which is more soluble in ethonal:acetic acid CH3COOH or stearic acid C17H35COOH I think acetic acid maybe more soluble
1. 3 answers
2. 2,821 views
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in
1. 2 answers
2. 1,599 views
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in
1. 2 answers
2. 717 views
A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular
1. 2 answers
2. 1,327 views
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved
1. 7 answers
2. 1,196 views
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved
1. 2 answers
2. 1,231 views
A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular
1. 4 answers
2. 2,070 views
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved
1. 1 answer
2. 828 views
A solution was prepared by dissolving 0.817g of sulfur S8, in 100.0g of acetic acid, HC2H3O2. Calculate the freezing point and
1. 2 answers
2. 1,053 views
What is the vapor pressure at 23 degree C of a solution of 1.20g of naphthalene, C10H8 in 25.6 g of benzene, C6H6? The vapor
1. 3 answers
2. 1,481 views
Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy.
1. 1 answer
2. 733 views
Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy.
1. 3 answers
2. 2,222 views
Concentrated aqueous ammonia contains 1.00 mol NH3 dissolved in 2.44 mol H20. What is the mole fraction of NH3 in concentrated
1. 2 answers
2. 2,651 views
use variable substitution and factoring to find all of the roots of each equation.x^4-9x^2+18=0 how do you do this??
1. 11 answers
2. 537 views
Caffeine C8H10N4O2, is a stimulant found in a tea and coffee. A sample of the substance was dissolved in 45.0g of choloroform
1. 3 answers
2. 4,437 views
How would you prepare 455 g of aqueous solution that is 6.50% sodium sulfate Na2SO4 by mass?percent by mass = grams/100 g
1. 5 answers
2. 2,114 views
What mass of solution containing 6.50% sodium sulfate N2SO4 by mass contains 1.50g Na2SO4Set up a proportion. (g Na2SO4/g
1. 5 answers
2. 2,036 views
Determine the mass of the element. What element is it?what is the molar volume of the metal in cubic centimeters(avogadro's
1. 1 answer
2. 495 views
What is the molar volume of the metal in cubic centimeters? (Avogadro's number should be used for this problem ------ 1 cm =
1. 1 answer
2. 440 views
what is the volume of the unit cell?A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 0.197 nm.
1. 3 answers
2. 1,370 views
NaCl crystallizes in face-centered cubic cell. what is the total number of ions(Na+ ions and Cr- ions) that lie withing a unit
1. 2 answers
2. 3,300 views
What portion of the volume of each atom or ion on the face of a unit cell is actually within the unit cell1/2 1/4 3/4 all of it
1. 2 answers
2. 2,032 views
The unit cell with all sides the same length and all angles equal to 90 degrees that has lattice points only at the corners is
1. 2 answers
2. 3,116 views
Determine the mass of the element? what element is it?Ca Ag Ti Mg Al
1. 1 answer
2. 344 views
what is the molar volume of the metal in cubic centimeters(avogadro's number should be used for this problem -1cm=10^7 nm)
1. 1 answer
2. 384 views
what is the volume of the unit cell
1. 1 answer
2. 387 views
What mass of solution containing 6.50% sodium sulfate N2SO4 by mass contains 1.50g Na2SO4
1. 2 answers
2. 875 views
How would you prepare 455 g of aqueous solution that is 6.50% sodium sulfate Na2SO4 by mass?
1. 2 answers
2. 1,262 views
Indicate which is more soluble in ethanol? C2H5OH, acetic acid, CH3COOH, or stearic acid C17H35COOH.
1. 1 answer
2. 728 views
People have proposed towing icebergs to arid parts of the earth as a way to deliver freshwater. Explain why icebergs do not
1. 1 answer
2. 626 views
A tank of gas at 21 degrees C has a pressure of 1.0 atm. Using the data in the table answer the following questions. Explain
1. 2 answers
2. 989 views
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was
1. 1 answer
2. 2,624 views
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was
1. 2 answers
2. 1,532 views
Methanol, CH3OH a colorless voltile liquid was formerly known as wood alcohol. It boils at 65 degrees C and has a heat of
1. 1 answer
2. 594 views
Snow forms in the upper atmosphere in a cold aid mass that is supersatuated with water vapor. When the snow later falls through
1. 1 answer
2. 471 views
On the basis of the description given classify each of the following solids as molecular, metallic, ionic, or covalent network.
1. 3 answers
2. 1,049 views
Classify each of the following by the type of solid if forms:a. LiCl b. BaCl2 c. BCl3 d. CCl4 e. NCl3 I have four different
1. 4 answers
2. 3,302 views
Describe the formation of hydrogen bonds in a hydrogen peroxide, H2O2. Represent possible hydrogen bonding structures in
1. 1 answer
2. 1,279 views
Snow forms in the upper atmosphere in a cold aid mass that is supersatuated with water vapor. When the snow later falls through
1. 0 answers
2. 1,067 views
On the basis of the description given classify each of the following solids as molecular, metallic, ionic, or covalent network.
1. 1 answer
2. 591 views
Which of the following do you expect to be molecular solids?A. sodium hydroxide NaOH B. Solid Ethane C2H6 C. Nickel, Ni D. Solid
1. 1 answer
2. 944 views
Classify each of the following by the type of solid if forms:a. LiCl b. BaCl2 c. BCl3 d. CCl4 e. NCl3
1. 6 answers
2. 666 views
Predict the order of increasing vapor pressure at a given temperature for the following compounds:CH3CH2CH2CH2OH HOCH2CH2CH2OH
1. 3 answers
2. 2,655 views
which of the following compounds would you expect to exhibit only London forces?CCL4 CCLH CaI2 PCl5
1. 1 answer
2. 2,023 views
A tank of gas at 21 degrees C has a pressure of 1.0 atm. Using the data in the table answer the following questions. Explain
1. 1 answer
2. 708 views
Methanol, CH3OH a colorless, volatile liquid was formely known as wood alcohol. It boils at 65.0 degrees C and has a heat
1. 1 answer
2. 573 views
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was
1. 1 answer
2. 756 views
Liquid Butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 39.3g of butane gas is removed from a cylinder. How
1. 3 answers
2. 1,138 views
Liquid Butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 39.3g of butane gas is removed from a cylinder. How
1. 2 answers
2. 1,721 views

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