Wednesday
October 1, 2014

Posts by brittany


Total # Posts: 832

business andmin admin communication
thank you so much ms sue. I was able to take the questions we differed on look through the reading material to really get a grasp on the concepts. I was able to resubmit the test (not counted toward grade) just to see if my understanding had improved. i only got 2 wrong that ...
November 17, 2012

business andmin admin communication
1c 6a 11b 16a 2a 7c 12c 17d 3d 8b 13c 18c 4d 9b 14d 19c 5a 10d 15b 20b These answers got me a 65.. thought i had a firm grasp on the concepts in the chapters... now i want to go back and read over the incorrect questions to get a better understanding
November 17, 2012

business andmin admin communication
i got a 65, on it. i can post my answers also. i was having a hard time figuring out which questions i got wrong.
November 17, 2012

Algebra/Math
A total of 504 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold . How many adult tickets were sold?
November 14, 2012

Sociology
The correct answer is A
November 11, 2012

Chemistry
51.34 g of water at 81.5 oC is added to a calorimeter that contains 52.13 g of water at 40.7 oC. If the final temperature of the system is 59.4 oC, what is the calorimeter constant (Ccalorimeter) ? Use 4.184 J/goC for the heat capacity of water.
November 8, 2012

Chemistry
Pentane is a small liquid hydrocarbon, between propane and gasoline in size C5H12. The density of pentane is 0.626g/ml and its enthalpy of combustion is ΔHcomb =-3535kj/mol. Estimate the fuel valve and the fuel density of pentane.
November 8, 2012

Chemistry
Calculate the final temperature of a mixture of 200.0g of ice initially at -16.5 Celsius and 406.0g of water initially at 84.5 degrees Celsius.
November 8, 2012

Chemistry
The flame in a torch used to cut metal is produced by burning acetylene(C2H2) in pure oxygen. Assuming the combustion of 1 mole of acetylene releases 1251kj of heat, what mass of acetylene is needed to cut through a piece of steel if the process requires 36.658 x 10^4 kj of heat?
November 8, 2012

Chemistry
Which of the following gases will effuse through a hole in a balloon fastest? a.Kr b.NO c.N2O d.NO2 e.ArNO2
November 6, 2012

Chemistry
What is the root-mean-square speed of N2O at 25°C?
November 6, 2012

Chemistry
The density of an unknown gas is 1.72 g/L at 750.0 torr and 30.0°C. Which of the following could be the unknown gas? a. CS2 b. NO c. N2O d. NH3 e. N02
November 6, 2012

Chemistry
Which of the following reactions will result in a reduced total pressure? a. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) c. 2HI(g) → H2(g) + I2(g) b. 2N2O(g) → 2N2(g) + O2(g) d. 2H2(g) + O2(g) → 2H2O()
November 6, 2012

Chemistry
How many moles of propane are contained in a 5.00 L tank at 450 torr and 25°C?
November 6, 2012

Chemistry
In an experiment, 25.0 mL of a gas with a pressure of 1.00 atm is contained in a balloon at 25.0°C. The balloon is then cooled to 5.0°C, and the pressure is found to be 0.750 atm. What is the volume of the gas under the new conditions?
November 6, 2012

Chemistry
Iron(III) oxide reacts with carbon monoxide gas to form solid iron metal and carbon dioxide gas: Fe2O3 + 3 CO --> 2 Fe + 3 CO2 If you begin the reaction with 84.34 g of iron(III) oxide and 68.87 g of CO, which reactant will be in excess at the end of the reaction and how ...
November 5, 2012

Chemistry
Which one of these samples contains the smallest number of molecules? a. 1.0 L of H2 at STP (0°C and 1atm) d. 1.0 L of N2 at 0°C and 800 torr b. 1.0 L of N2 at STP e. 1.0 L of He at STP c. 1.0 L of H2 at 20°C and 760 torr
November 4, 2012

Chemistry
Methanol (CH4O) is converted to bromomethane (CH3Br) as follows: CH4O + HBr --> CH3Br + H2O If 12.23 g of bromomethane are produced when 5.00 g of methanol is reacted with excess HBr, what is the percent yield?
November 4, 2012

Childhood Education
How does poverty relate to a child's risk for inadequate health and well-being?
November 1, 2012

Childhood Education
What items would you first look for to determine whether lead is present in the environment where children are present?
November 1, 2012

Childhood Education
Can anyone answer this question? Compare the environment for toddlers with one suitable for infants. How are the areas similar? How are they different?
October 31, 2012

Childhood Education
Compare the environment for toddlers with one suitable for infants. How are the areas similar? How are they different?
October 31, 2012

Childhood Education
Compare the environment for toddlers with one suitable for infants. How are the areas similar? How are they different?
October 31, 2012

Organic Chemistry
An expanded structural formula shows all the atoms of the molecule and all the bonds between the atoms in the molecule. Draw the expanded structural formula for 1,3-dichlorocyclopentane. Draw the structure by placing atoms on the grid and connecting them with bonds. Include ...
October 30, 2012

english-dr.faustus
the answer was B
October 22, 2012

english-dr.faustus
the warning Dr.Faustus teaches is? A-the devil is evil B-do not wish for more than heavenly power permits C-the end will justify the means D-both A and C
October 22, 2012

math
the product of a 1 digit number and a 2-digit number number is 284 what is the awnser
October 20, 2012

Pre-Algerbra
In which quadrant does the point lie? Write the coordinates of the point. Point B A. quadrant II; (–2, –4) B. quadrant III; (2, 4) C. quadrant III; (–2, –4) D. quadrant IV; (–4, –2)
October 17, 2012

Chemistry/Quantitive Anaylsis
Determine the absolute and percent relative uncertainty expressing the result in the correct number of significant digits a.) 6.2 (+-0.2)-4.1(+-0.1) b.)[9.23(+-0.03)][4.21(+-0.20}/21.1(+-0.2) c.)log[3.1415(+-0.001)] d) log[(0.104(+-0.0060)]^1/2 /0.0511(+-0.00090]
October 14, 2012

Chemistry/Quantitive Anaylsis
Before determining the amount of sodium carbonate in a sample by titration with standard hydrochloric avid the anaylst decide to check the procedure by analyzing a known sample of 98.75 (w/w)% purity. Five replicate determinations of the known gave the following results: 98.71...
October 14, 2012

Chemistry
The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.30 pounds of methane (fuel value is 11.97 kcal/g) is used to heat 122.0 kg of water at an initial temperature of 21.1 °C...
October 11, 2012

college stats
A study wants to examine the relationship between student anxiety for an exam and the number of hours studied. The data is as follows: Student Anxiety Scores Study Hours 5 1 10 6 5 2 11 8 12 5 4 1 3 4 2 6 6 5 1 2 Why is a correlation the most appropriate statistic? What is the...
October 8, 2012

Early childhood education
Awesome! Thanks!
October 3, 2012

Early childhood education
Special educational services for young children with disabilities: a. Cannot be enforced through laws. b. depend on parent efforts. c. do not involve the Head Start Program. d. are rooted in federal legislation. I'm thinking D is the correct answer?
October 3, 2012

Exceptional Children
Most early childhood professionals children’s agree that the terms inclusion and mainstreaming: A. Both refer to exceptional children’s participation in the general education curriculum. B. Mean the same thing. C. Are two different concepts. D. Both refer to programs...
October 3, 2012

English
I had to write a paragraph about a personal experience of mine with no passive verbs. When I submitted mine my teacher told me it was almost correct but not right yet. Could you tell me a list of passive verbs?
October 1, 2012

Computers
What are calculations entered into a spreadsheet called? Formulas? Or Values? I'm thinking its formulas but Values talks about calculations on a spreadsheet too.
September 27, 2012

geometry
PM is the median of trapezoid KLNO. If ON = 24 centimeters and KL = 12 centimeters, which is the length of PM
September 26, 2012

literary
I need an example of connotation from the Star Wars series in the form of a quote.
September 16, 2012

Bio
Assume that a cell culture has a density of 108 cells/mL. You transfer 20 microliters (20 L) of this culture onto a microscope slide. How many cells do you expect will be in this 20 L drop you placed under the microscope?
September 13, 2012

geometry
Given letters gb and gf how do you write a mathematical to compare their measures?
September 7, 2012

Statistics
An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution ...
September 5, 2012

Statistics
An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution ...
September 5, 2012

physics
If you walk for 1.66min at a speed of 1.22m/s and then run for 1.66min at 3.05m/s along a straight track, what is the average velocity?
August 22, 2012

Social Studies
its not a or b cause i took the test the answer is cold war spending
August 15, 2012

Math- STATS 218
When the following hypotheses are being tested at a level of significance of aH0: m 100 Ha: m < 100 the null hypothesis will be rejected if the test statistic Z is a. >Z b. >Z c. <Z d. <100
July 27, 2012

critical reading
Elaborate comparisons which are used by advertisers are usually _____. A)fallacies of evidence. B) fallacies of language. C)newsworthy. I think it is B, is this correct?
July 12, 2012

health
C.
July 9, 2012

Math
Calculate the percentage strength of hydrocortisone if you combine 30 g of 1%, 45 g of 0.5%, and 15 g of 2%. Round to the hundredth.
July 6, 2012

Math
Androgel is available in 1% strength. A provider prescribed it for a patient but would like to minimize side effects by starting treatment at a lower 0.3% strength. How much androgel should be added to a base gel to prepare 15 g of the desired strength?
July 6, 2012

Phamacy School
What is the percentage strength of tretinoin gel when you combine 15 g of 0.025% and 30 g of 0.01%?
July 6, 2012

MATH
What is the percentage strength of tretinoin gel when you combine 15 g of 0.025% and 30 g of 0.01%?
July 6, 2012

MATH
Calculate the percentage strength of hydrocortisone if you combine 30 g of 1%, 45 g of 0.5%, and 15 g of 2%. Round to the hundredth.
July 6, 2012

MATH
Calculate the amount of 8% acetic acid needed to combine with water to make 600 ml of 3.5% acetic acid.
July 6, 2012

math
What answer did u get
June 25, 2012

English III
# 3 is B
June 9, 2012

GEOMETRY
if AB=5X+3 and BC=7x-9 what is the value of AC? using the addition segment postulate
June 6, 2012

Stats
I posted this question straight from the quiz, so I'm not sure why you're confused.
May 26, 2012

Stats
Find the number z (± 0.01) such that the proportion of observations that are less than z in a standard Normal distribution is 0.8 Find the number z (± 0.01) such that 59% of all observations from a standard Normal distribution are greater than z
May 26, 2012

history
Which system of Spanish government did haciendas replace? A. the encomienda B. popular sovereignty C. socialism D. coalitions
May 25, 2012

algebra 2
find the exact value using the unit circle cos 3.14/6
May 24, 2012

geometry
PLEASE HELP WITH A FEW QUESTIONS triangle ABC has side lengths 8, 15, and 17 do the side lengths form a pythagorean triple? the length of the hypotenuse of a 30-60-90 triangle is 7 find perimeter to approach the runway, a pilot of a small plane must begin a 10descent starting ...
May 23, 2012

geometry
I was looking for how to do proportions, i had forgot.
May 23, 2012

geometry
Thanks for the help on one problem
May 23, 2012

Chemistry
I need help with the Lewis Dot Structure. I'm so lost. The problems I have and need help with are 1) H2NCH3 2) C3H6 3)NO2-ion 4) H3CSCH2F 5) NCl3 6) H2NCOOH 7)C3H7OH
May 23, 2012

History
What were the causes of the War of 1812? Where did Republicans and Federalists stand on declaring and then fighting the war? What regional tensions did the war expose?
May 22, 2012

Chemisty
A 2.5 L volume of sodium hydroxide solution was prepared. The titrant was standarized against primary standard oxalic acid dihydrate, H2C2O4*H2O(molar mass is 126.06) if a 0.4774g sample of the prmiary standard consumed 31.94mL of the base solution in reaching the ...
May 9, 2012

Chemistry
A Student Performing a lab weighed a 1.0993g sample, containing an unknown KHP, which required 18.06mL of 0.1879M NAOH to reach the phenolphtalein endpoint. a) How many moles of base were consumed by the KHP in this sample? b) How many grams of KHP were titrated? c)What is the...
May 9, 2012

english
According to the Introduction, who encouraged Mary Shelley to expand Frankenstein into a full-length novel
May 8, 2012

statistics
Whats the difference between creating a z score from a single score and creating one fron a sample mean?
April 30, 2012

English 4
the choices are: A-the birds were flying over the sea in a straight formation B-the seas were rough C-there was a faint outline of the old man in the crescent of the new moon D-all of the above
April 30, 2012

algebra
How would I show my work for: 3-2(3)+2(4)+1
April 28, 2012

Intermediate Algebra (college)
Use the properties of logarithms to condense the expression 1/3[ln(x - 6)- 4 ln y - 2 ln z]
April 26, 2012

Precalc
if sine theta=.3416 and theta is in quadrant I what is cos theta/2? Using double angle identities.
April 26, 2012

statistics
I guess 100 is the highest the mean is 30.9 and the standard deviation 2.08 it just says children below the 30th percentile
April 19, 2012

statistics
Children below the 30th percent are in need of special assistance assistance what raw score makes the cut off score for these children?
April 19, 2012

Physics
Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other? (b) At a point far away from the wires, do their individual fields tend to ...
April 17, 2012

AP Chemistry
A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e- Cu(s) I2(s) + 2 e- 2 I -(aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I - ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ] were equal to 1.0 M, ...
April 16, 2012

AP Chemistry
A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e- Cu(s) I2(s) + 2 e- 2 I -(aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I - ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ] were equal to 1.0 M, ...
April 16, 2012

CHEM
Given the equation 2C8H18 + 25O2 = 16 CO2 + 18H2O: The combustion of octane produces carbon dioxide and water. If you start with 10.0 moles of octane, what mass of water (in grams) would you expect to produce?
April 3, 2012

Chemistry 1201
thankyou so much! i got 3.65*10^25
March 28, 2012

Chemistry 1201
A solution of ammonia and water contains 1.00×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
March 28, 2012

chemistry
Calculate the enthalpy change for converting 10.0g of ice at -25 degrees Celsius to water at 80 degrees Celsius. The specific heats of ice, water, and steam are 2.09j/g degrees Celsius, 4.18j/g degrees Celsius, and 1.85j/g degrees Celsius. The enthalpy of fusion for water is 6...
March 28, 2012

chemistry
How do I do a question like this please help and explain it!! Calculate the pH of a buffer solution that contains 0.22 M benzoic acid (C6H5CO2H) and 0.24 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal.
March 25, 2012

Chem 111
A solution is prepared by mixing 499 mL of 0.19 M Tris·Base and 592 mL of 0.37 M Tris·Acid. What is the pH of this solution? [Ka(Tris·Acid) = 8.5 × 10-9] Round your answer to two places past the decimal. I can do basic pH questions but I am at a loss...
March 25, 2012

math
A town has a population of 32,000 in the year 2002; 35,200 in the year 2003; 38,720 in the year 2004; and 42,592 in the year 2005. If this pattern continues, what will the population be in the year 2016?
March 10, 2012

geography
Which region of southern grasslands in south america have rich deposits of oil and bauxite?
March 9, 2012

geography
which region of the southern grasslands possesses rich deposits of oil and bauxite?
March 9, 2012

Chemistry
21 gCH3OH*(1 mol/32.01CH3OH)*(252.8/1 mol)
March 5, 2012

Chemistry
2CH3OH(g)->2CH4(g)+O2(g) Change in H=252.8 kJ
March 5, 2012

Chemistry
So far my equation is 21 gCH3OH*(1 mol/32.01CH3OH)
March 5, 2012

Chemistry
Calculate the amount of heat transferred when 21.0 of CH3OH(g) is decomposed by this reaction at constant pressure.
March 5, 2012

Chemistry
A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 69.8 kJ of heat. Before the reaction, the volume of the system was 8.80 L . After the reaction, the volume of the system was 2.80 L . Calculate the total internal energy change, change in U , in kilojoules.
March 5, 2012

Adv. Function math
How would you set up this problem if instead of using 1000 feet of fencing, only 750 feet of fencing is used? Solve the problem to find the maximum area..
February 29, 2012

Finance
Say that you purchase a house for $270,000 by getting a mortgage for $235,000 and paying a $35,000 down payment. If you get a 15-year mortgage with a 8 percent interest rate, what are the monthly payments?
February 27, 2012

Physics Please Help!
A solid disk with a mass ok 100 kg and radius of 0.2m turns clockwise through an angular displacement 10 rad when starting from rest attain its maximum angular speed of 1 revolution every 0.5s. How much time did it take for the disk to go from rest to maximum angular speed?
February 21, 2012

Physics
A solid disk with a mass ok 100 kg and radius of 0.2m turns clockwise through an angular displacement 10 rad when starting from rest attain its maximum angular speed of 1 revolution every 0.5s. How much time did it take for the disk to go from rest to maximum angular speed?
February 21, 2012

PHYSICS
A solid disk with a mass of 100kg and a radius of 0.2m, turns clockwise through an angular displacement 10 rad when starting from rest to attain its maximum angular speed, of 1 revolution every 0.5s. What is the angular acceleration that the wheel experienced in order to ...
February 20, 2012

Physics
A solid disk with a mass of 100kg and a radius of 0.2m, turns clockwise through an angular displacement 10 rad when starting from rest to attain its maximum angular speed, of 1 revolution every 0.5s. What is the angular acceleration that the wheel experienced in order to ...
February 20, 2012

algebra
use any three of the digits 2,3,4 and 6 to form an 8 digit factor and a two didgit factor with a estimated product that is between 140 and 250
February 18, 2012

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