Wednesday
August 20, 2014

Posts by Ivy


Total # Posts: 154

Logic
Eric is planning a 7-day resort vacation. He will play golf on four mornings. He also wants to play tennis but can only play tennis on days he does not play croquet. He will play croquet on any day immediately following a day that he plays golf. What is the greatest number of ...
July 31, 2014

Philosophy
Can someone please check my answers if it is right. Thank you! True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. -FALSE 2. For the members of the ...
July 11, 2014

Philosophy
My answers are T/F 1. False 2. True On the Multiple Choice 1. b 2. d
July 10, 2014

Philosophy
True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. 2. For the members of the Flat Earth Society, who believe that all physical evidence of a round ...
July 10, 2014

Philosophy
True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. 2. For the members of the Flat Earth Society, who believe that all physical evidence of a round ...
July 9, 2014

NONe
OOBI
May 23, 2014

chemistry
Calculate the pH of .100 of a buffer solution that is .25 M in HF and .50 M in NaF. What is the change in pH on addition of the following? A. .002 mol of HNO3 B. >004 mol of KOH I calculated the correct pH of the solution but am having trouble calculating A & B. Thanks, Ivy
February 1, 2014

Science
What is the source of the magma that fuels the island arc complex?
January 8, 2014

chemistry
Crude oil pumped out of the ground may be accompanied by the formation of water, a solution that contains high concentrations of NaCl and other salts. If a boiling point of a sample of the formation of water is 2.0 Celsius above the boiling point of pure water, what is the ...
August 10, 2013

math
what property of multiplication is used in the equation below? why? 2 (3) 2 - (-)= - 7 3 7
January 6, 2013

math
sam said if he ate half of a pie and ava ate a fourth of the pie then three-fourths of the pie will have been eaten
April 1, 2012

A&P 1
Why is it important to understand the relationship between nerves and muscles?
March 14, 2012

chemistry
A Solute That Removes Hydrogen Ions from Solution
February 23, 2012

chemistry
Write net ionic equation for the reaction between nitric acid and calcium hydroxide.
February 10, 2012

physics
What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?
January 25, 2012

physics
What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?
January 25, 2012

physics
What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?
January 25, 2012

Math
Rick rides 11 1/8 miles in an hour with his bike in second gear going uphill. If Rick rides downhill in fourth gear he goes 2 1/2 faster. How many miles will Rick go in an hour downhill in fourth gear?
January 7, 2012

Chemistry
if antiseptic hydrogen peroxide is 3% H2O2 by mass, approximately how many moles of H2O2 are present in each gram of antiseptic solution? you can assume the solution has the same density as water. show your calculations.
December 2, 2011

chemistry
which procedure is a chemical change that may be used to break down a compound?
November 28, 2011

algebra
30
November 14, 2011

Reading
Onomatopoeia is imitation of sounds of nature. I don't see the onomatopoeia in this lines.
November 14, 2011

computer
The answer is D. :)
November 7, 2011

computers
The correct Answers is B.
November 7, 2011

Math
A swimming pool is 16 meters wide and 25 meters long. At $50 per square meter. how much will a child-proof covering for the pool cost?
October 24, 2011

Math
A parking lot is 60 meters wide and 80 meters long. At $ 15 per square meter, how much will it cost to pave the parking lot?
October 24, 2011

organic chemistry
Why must the alkyl halide product be dried carefully with anhydrous calcium chloride before the distillation?
October 24, 2011

organic chemistry
Aqueous sodium bicabonate used to wash the crude n-butyl bromide. a) What was the purpose of this wash? Give equation. b)Why would it be undesirable to waash the crude halide with aqueous sodium hydroxide?
October 24, 2011

organic chemistry
An ether and an alkene are formed as by-products in this reaction. Draw the structure of these by-products and give mechanism for their formation.
October 24, 2011

organic chemistry
Why does the alkyl halide layer switch from the top layer to the bottom layer at the point where water is used to extract the organic layer?
October 24, 2011

organic chemistry
what are the formulas of the salts that may precipitate when the reaction mxture is cooled?
October 24, 2011

Ap Chemistry
HOw much energy is required to ionize a mole of Hydrogen atoms?
September 8, 2011

Ap Chemistry
Calculate the wavelength of light that must be absorbed by hydrogen atom in its ground state to reach the excited ste of E=+2.914*10^(-18)
September 8, 2011

Biology
What happened if you put the Elodea leaf cells in a solution of 0.5% NaCl,1.8% NaCl and 0.9%NaCl?
July 23, 2011

computers
. Explain the following unexpected result: $ whereis date date: /bin/date ... $ echo $PATH .:/usr/local/bin:/usr/bin:/bin $ cat > date echo "This is my own version of date." $ ./date Fri May 22 11:45:49 PDT 2009
July 19, 2011

Biology
In your own words, explain the second law of thermodynamics and explain why it is not violated by living organisms?
July 17, 2011

english
examples of folk narratives with sources
July 14, 2011

chemistry
why does the melted wax turns solid when dropped on water ?
July 14, 2011

Chemistry
okay,this is what i have so far: so is the chemical formula: O2 + CxHyOz --> CO2 + H2O ? CO2: 0.41 g of C 1.09 g of O2 H2O: 0.045 g of H2 0.36 g of O Empirical Formula: CH2O -> n = 0.033 mol C: 0.033 mol x 12g/mol = 0.396 g of C H2: 0.033 mol x 2g/mol = 0.066 g of H2 O: ...
June 20, 2011

Chemistry
When 1 gram of sex hormone (contains C, H, and O) was burned in a combustion analysis, 1.5 grams of CO2 and 0.405 grams of H2O were obtained. The molar mass was found to be 352g/mol. What is the molecular formula for the sex hormone?
June 20, 2011

physics
A train braking with constant deceleration covers 1km in 20s, and a second kilometre in 30s. Find the Deceleration. Wgat further distance will it cover before coming to a stop. and how long will it take?
June 18, 2011

math
An iceberg breaks off from the Antarctic continent and floats due north at constant velocity/ It's latitude south decreases by 1 degree in 8 days. Taking the circumference of the earth to be 40 000km, calculate the speed of iceberg in ms^-1.
June 17, 2011

math
in triangle fgh,angle f=32, angle g= 100. find angle h
June 5, 2011

chemistry
Draw the condensed structural formulas of ethyl alcohol
May 22, 2011

Physiology
Indicate the effect of the hormone on the response (increase, decrease, no effect)? 1.__________________ effect of secretion of insulin on blood glucose levels 2.__________________ effect of secretion of ADH on blood pressure 3.__________________ effect of secretion of ...
May 18, 2011

Physiology
Match the hormone or regulatory mechanism to digestive function.? a. Enterokinase b. gastrin c. intestinal cells of Cajal d. cholecystokinin e. CFTR f.enteric nervous system 1._______ this hormone contributes to the secretion of pancreatic juice 2._______ this component of the...
May 18, 2011

Physiology
For discussion of endocrine disorders 1.Diabetes insipidus Hormone affected? Too much or too little? 2.Graves’ disease Hormone affected? Too much or too little? 3.Acromegaly Hormone affected? Too much or too little? 4.Addison’s disease Hormone affected? Too much or ...
May 18, 2011

Physiology
Clotting disorders are common, complex and affected by a variety of medications or mechanisms. Match the mechanism to the description. a. coumarin b. EDTA c. aspirin d. factor VIII deficiency e. tissue-plasminogen activator (TPA) f. heparin 1.inhibits the formation pf ...
May 18, 2011

Physiology
Indicate the site of the following activity in the digestive system (mouth, esophagus, stomach, small intestine, large intestine, liver, gall bladder, pancreas). 1.breakdown of cholesterol by formation of bile acid 2. principal site of formation of folic acid and vitamin K by ...
May 18, 2011

Physiology
Indicate whether the following would increase or decrease during exercise.? 1.activity of the sympathetic nervous system 2.urine FORMATION 3.vasodilation of blood vessels in the skeletal muscles 4. stroke volume 5.venous return 6.activity of the vagus nerve
May 18, 2011

Physiology
Suppose you were to grind up and homogenate a pancreas. Do you think it would be possible to isolate insulin from this hemogenate? ( Hint: remember that the pancreas is also an exocrine gland, producing pancreatic juice) Explain your answer
May 14, 2011

Physiology
Compare and Contrast the structure and function of the epithelium of the skin and the epithelium of the intestion
May 14, 2011

Physiology
Would you expect the muscle fibers of the tongue to be striated or smooth? What about the muscle of the diaphragm? Explain your answer.
May 14, 2011

Physiology
Before the invention of refrigerators, pioneers preserved meat by salting it. Explain how meat can be preserved by this procedure.(Hint: think about what salting the meat would do to decomposer organisms, such as bacteria and fungi)
May 14, 2011

Physiology
Suppose a salt and a glucose solution are separated by a membrane that is permeable to water but not to the solutes. The NaCl solution has a concentration of 1.95 g per 250 mL (molecular weight = 58.5). The glucose solution has a concentration of 9.0 g per 250 mL (molecular ...
May 14, 2011

Physiology
How might the following affect blood volume (increase or decrease) (note: refer to physiology of kidney): High protein concentration in blood plasma Secretion of ADH Renin-angiotensin-aldosterone ANF (atrial natriuretic factor)
May 8, 2011

chemistry
If 39.2 of 0.177 is required to neutralize completely 22.0 solution, what is the molarity of the acid?
May 7, 2011

Physiology
how do regions of the brain control motor neurons?
May 6, 2011

Physiology
what causes calcium to be released in sliding filament action for muscle contraction?
May 6, 2011

Physiology
what does skin have to do with bone formation?
May 6, 2011

chemistry
what is the meaning of the numeral represented by X in the general formula for hydrate salt * XH2O
April 26, 2011

chemistry
How many milliliters of 3.60 {\rm M} {\rm HCl} are required to react with 140 {\rm mL} of 1.60 {\rm M}{\rm Al}({\rm OH})_{3}?
April 23, 2011

chemistry
If Tums is added to 55.0 {\rm mL} of 0.750 {\rm M}{\rm HCl}, how many grams of {\rm CO}_{2} gas are produced?
April 23, 2011

Physiology
If you placed the stethoscope on the patient's bracial artery, but did not put the BP cuff on the patient, you wouldnt hear blood flow sounds. Explain Why you woundnt hear hear bllod floww sounds if you didnt put the BP cuff in the patient?
April 13, 2011

physiology
Where is Parathyroid hormone and Calcitonin each synthesize, and by what specific type of cell?
April 11, 2011

physiology
How is this hormones regulated: hypothlamus/pituitary axis, nervous system,feedback inhibition indicate which? 1. Follicle stimulating hormone 2. Cortisol 3. Antidiuretic hormone 4. Parathyroid hormone 5. Thyroid-stimulating hormone 6. Insulin 7. Norepinephrine
April 11, 2011

physiology
Which might, in theory, be used to combat osteoporosis? Parathyroid or Calcitonin?
April 11, 2011

biology
Compare and Contrast the following thyroid disorders? 1. IODINE DEFICIENCY a. Does it cause goiter (yes or no) b. Is the metabolic too high or too low? (indicate which) c. Effect on TSH levels (will they increase or decrease?) d. What is the most appropriate way to treat this ...
April 11, 2011

physiology
Is the hormone protein,steroid or glycoprotein? 1. Follicle-stimulating hormone 2. Cortisol 3. Antidiuretic hormone 4. Parathyroid hormone 5. Thyroid-stimulating hormone 6. Insulin 7. Norepinephrine
April 9, 2011

chemistry
Calculate each of the following quantities in 0.183 mole {\rm (C_3H_5)_2O}: Find the Atoms of H and C
April 3, 2011

chemistry
A sample of propane, \rm C_3H_8, contains 12.8 moles of carbon atoms. How many total moles of atoms does the sample contain?
April 3, 2011

Physiology
Why is it important to clear a neurotransmitter quickly from the synaptic cleft? What might happen to the target muscle cell if the neurotransmitter were NOT cleared? What might happen if neurotransmitter reuptake occured too quickly?
March 29, 2011

Math
The 16th term of an Arithmetric Progression is four times the 36th term, and exceeds it by 32. Finda the numbers.
March 28, 2011

math
thx...=]
March 28, 2011

math
given that a+b/5 = b+c/6 = c+a/7 = k, find the ratio a:b:c.
March 28, 2011

Physiology
Parathyroid hormone and calcitonin are synthesized where?
March 28, 2011

Physiology
What condition triggers its release(e.g., glucose in blood) 1.Thyroid hormone 2.ADH 3. Aldosterone 4. Epinephrine 5. Melatonin 6. Estrogen
March 28, 2011

Math
find p/q if (2q^2-pq):(q^2-pq) = 2:3.
March 25, 2011

Physiology
Compare and contrast the activity of acetylcholine, dopamine, serotonin, and norepinephrine. If the statement applies to more than one, indicate which ones. ___________________________ curare interferes with the action of this neurotransmitter ___________________________ ...
March 18, 2011

neurotransmitters
There may be more than one region in which the neurotransmitter is active. Choose one, and make sure your answer in column 4 matches the region identified in column 3. 1.Glutamate a.Is it excitatory or inhibitory (indicate which)? b. Name a specific region in the brain where ...
March 18, 2011

Physiology
Match the poison/drug to the effect. a. curare b. tetanus toxin c. a-bungarotoxin d. strychnine e. botulinum toxin f. neostigmine __________ causes spastic paralysis by specifically blocking glycine receptors __________ causes flaccid paralysis by blocking the release of ...
March 18, 2011

Physiology
Fill in the table with information about the action of pharmaceutical drugs on neurological disorders. Name of drug 1.Valium a.Neurotransmitter affected b.Does the drug enhance or reduce the effect of the neurotransmitter? (indicate which) c.For what type of disorder is this ...
March 18, 2011

Chemistry
For the reaction: C4H10 + O2 ¨ CO2 + H2O ( is this balanced?) , how many moles of CO2 is formed when 5.00 moles C4H10 reacts with O2? A. 5.00 B. 1.25 C. 20.0
March 5, 2011

Science
Classify each of the eight living things listed below into one of the two groups according to an important physical characteristic. Gorilla,Parrot,Snake, Earthworm,Jellyfish,sponge,fish,fly Group 1- Group 2- what characteristic did you use in you classification? name a ...
February 26, 2011

math
6.375 g/dl convert to g/100ml?
February 17, 2011

math
Convert 0.925 g/l to mg/100ml?
February 17, 2011

Physiology
If a man’s ideal weight is 165 lbs. and he weighs 185 lbs., how many pounds above his ideal weight is he? What percent above his ideal weight is he? ______________lbs. above ideal weight ______________% above ideal weight
February 9, 2011

Physiology
Obesity is defined medically as 20% above a person’s ideal weight. If a person’s ideal weight is 72 kg, when (above what weight) would that person be considered obese? ________________kg
February 9, 2011

Physiology
A patient’s blood cell count shows 15,000 white blood cells (WBCs) per µL of blood. A normal WBC count is about 9,000 cells/µL (the normal range is actually 4,000 to 11,000 WBCs/µL). What percent of normal is this particular patent’s WBC count?
February 9, 2011

physical
what is the minimum length of the mirror needed to view the whole body at any distance?
February 3, 2011

ECONOMICS
The relative price of personal computers has dropped drastically over time. would you explain this falling price in terms of demand or supply changes? what factors (at least 4) are likely to have caused the demand or supply shifts that did occur?
January 19, 2011

ECONOMICS
UrGENT, PLS ANSWER MY QUESTION IMMEDIATELY!!! For each pair of commodities,state which do you think is more elastic and give your reasons:perfume and salt; penicillin and icecream; automobiles and automobile tires.
January 19, 2011

Chemistry
how many molecules of CH4 gas are present in a 1.00 L flask of CH4 gas at STP?
December 12, 2010

Chemistry
is this right for a. 1.80 x 10^24 molecules of SO3(1 mol SO3/6.022E23)(22.4L/1 mol)? but then the book said the answer is 67.0 L SO3
December 12, 2010

Chemistry
What volumes will each of the following occupy at STP? a. 1.80 x 10^24 molecules of SO3 b. 7.5 mol C2H6 c. 25.2 grams chlorine
December 12, 2010

Chemistry
Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion
December 12, 2010

Chemistry
where would i get N?
December 12, 2010

Chemistry
A sample of propane gas, C3H8, was collected over water at 25 degree Celsius and 745 torr. The volume of the wet gas is 1.25 L. What will be the volume of the dry propane at standard pressure?
December 12, 2010

Dalton's Law of Partial Pressures
A sample of propane gas, C3H8, was collected over water at 25 degree Celsius and 745 torr. The volume of the wet gas is 1.25 L. What will be the volume of the dry propane at standard pressure?
December 12, 2010

Chemistry 22
Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion
December 12, 2010

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