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blood pH that is considered normal in humans is 7.35 to 7.45. If a peblood pH changes from 7.35 to 7.45,

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history
Create a timeline for the years 1780 to 1850. On the timeline, address the changes in political parties, the significant events that marked the growth of democracy, the market revolution, and the beginning of American expansionism

Biology
1. Mutations to DNA cause changes in organisms. Explain why this might be important to the survival of a spcies? 2. Why is it important to be protected with a lead shield when you are getting dental X rays? 3. Why can suntanning be dangerous for a skin cell?

American History
How did the American population change between 1820 and 1860? What were some of the responses of Americans to these changes? Please just point me in the right direction. I've "googled" and haven't found much help.

psychology
Irene has experienced physical problems because her life has been disrupted by environment changes and constraints. She complains of headaches, sleep problems, and poor relationships. Her condition can best be explained by which viewpoint?

Physics
Say what energy changes are taking place: a)clockwork toy b)boy kicking soccer ball c)boiling kettle on a gas ring d)person walking upstairs What are the wasted energy in a) b) c) and d)?

PSY
Irene has experienced physical problems because her life has been disrupted by environment changes and constraints. She complains of headaches, sleep problems, and poor relationships. Her condition can best be explained by which viewpoint?

gen chem
A nuclear reaction, such as the transmutation of uranium-238 to a stable isotope lead-206, involves exothermic and endothermic processes. In this reaction, is there any physical and chemical changes involved?

science
Are the following data sets on chemical changes consistent with the law of conservation of mass? (a) A 15.0 g sample of sodium completely reacts with 19.6 g of chlorine to form 34.6 g of sodium chloride. the answer is yes, because 15 and 19.6 add up to 34.6 right?

wordd
Compare and contrast your abilities as an academic writer now as opposed to when you began your studies at college using four comparatives and four superlatives within your responses, explain what has led to these changes

physics PLEASE HELP
A 3.00-kHz tone is being produced by a speaker with a diameter of 0.185 m. The air temperature changes from 0 to 29° C. Assuming air to be an ideal gas, find the change in the diffraction angle θ.

social studies
Whatsocial changes came as a result of increased trade? - I already have a few like towns, new powers, new freedoms, and weakening of feuldalism. Is there anything else I missed?

chemistry
Freezing and Melting are two different physical changes that involve the same amount of energy. compare and contrast the potential energy diagrams that would represent each of these processes. Be specific in your comparison.

Chemistry
Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g) + 2 H2O (g) addition of Cl2*** decrease of pressure increase of pressure removal of O2

Chemistry
Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g) + 2 H2O (g) addition of Cl2*** decrease of pressure increase of pressure removal of O2

Finance
Can anyone explain to me how to use this formula? Cost of failing to take a cash discount Disc  ount percent 100 percent Discount percent 3   60 Final due date  Discount period I am trying to calculate Assume the proceeds from the loan with the compensating balance ...

earth science
#25 seismic waves are similar to sound waves because_______ a/ both are produced by vibrations b/ both are caused by humans c/ they are both produced by radiation d/ seismic waves and sound waves are not similar in any way

Health and Safety Workplace
1. What's the vital sign that's described according to rate, depth, and rhythm? A. pulse B. respiration C. blood pressure D. temperature (MY ANSWER IS B) 2. Airborne infections may be contracted in all the following ways except A. by coughing B. through insect stings C. by ...

Social studies
True/fals 1. Borrowing from economics, rational choice theorists examine opportunities, costs and benefits when studying offenders’ decision-making processes. 2. In emphasizing both social disorganization and ecology, routine activities theory can be considered a ...

history
Which of the following statements about John D. Rockefeller is most accurate? A. He founded the Standard Oil Company when he was 24 years old. [B. He considered competition to be the central ideal of capitalism.] C. He invented the concept of vertical integration. D. He ...

chemistry
a system consisting of 1.5 mol CO2(g), initially at 15deg and 10 atm and confined to a cylinder of cross-section 10.0 cm2. it is allowed to expand adibatically against an external pressure of 1.0 atm until the piston has moved through 20 cm. assume that carbon dioxide may be ...

american politics
Which of the following statements is incorrect? A. Democracies tolerate different opinions and interests. B. Democracy is a favored “label” for many governments. C. Citizen participation in voting must exceed 80 percent of eligible voters in order for a government to be ...

Physics
The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object when its velocity is 11 m/s?

College Accounting
What changes have you had to make in your life to make the college experience work for you?

Health care
How has the payment of health care providers evolved over time? What caused these changes?

math
The price of an oven changes from $450 to $396. (1 point)13.6% increase 13.6% decrease 12% increase 12% decrease

APPLIED CHEMISTRY
MOLE FRACTION AND MOLALITY IS INDEPENDENT OF TEMPERATURE BUT NORMALITY AND MOLALITY CHANGES WITH TEMPERATURE, WHY?

Phase Changes
The heat of vaporization of water is 2.26 kJ/g. How much heat is needed to change 3.74 g of water to steam?

Algebra 2- Translations
Describe how the graph of y= absolute value changes when the equation is changed to y = -5 absolute value x-9 and + 12

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...

science
How can someone's blood literally boil when they go into a plane at too high an altitude? They said it was called the bends on tv. I've heard of the bends but only when people go diving and then they have to go into this chamber. The bends in water is caused by the divers ...

Physics Classical Mechanics
A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle θ= 35.0∘ with respect to the horizontal. Assume that ...

Geography
6. Which of the following conditions does not describe how infectious diseases spread? A. Malaria spreads after a mosquito stings an infected person or animal. B. Cancer is spread through tobacco smoke and poor diet. C. Influenza is transmitted by a kiss, a handshake, or even ...

BIO?
how would increase in adrenaline change blood glucose levels? Look under Actions in the body at: http://en.wikipedia.org/wiki/Epinephrine

american government
if a teachers union wants its opinion to be heard in a case being considered by the supreme court on the issue of school prayer, but the union is not a formal party to the lwqsuit, it should file a/an writ of certiorari judicial pettion amicus curiae brief concurring opinion

Intro to Psychology
Although not considered high in reliability or validity, this type of psychological assessment, if used correctly and by well-trained professionals, can provide valuable insight into understanding a person's thoughts and feelins. a. intelligence test b. achievement test c. ...

history ( is this considered a good answer?
Identify the marshall plan (locate it historically) and explain its historical significans. Marshall Plan(June 1947 to 1952) Rebuild Europe Stabilize democracies and US allies Try to split Eastern European countries from the Soviet Union

Dog Hunting Training
Please check my answer thanks :) True or False The Rhodesian Ridgeback in not considered a versatile hunting breed ( however Pointer Weimaraner and Bruttany are versatile hunting breeds) I said that is True

physics-please help
A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

math
Need help..... A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

child development
-----------are considered critical at certain times during early growth and development and have growth-inducing influence on the brain's structure. A) Growth spurts B)Norms C)Essential experiences D)Nonessential experiences

statistics
About 24% of all homes purchased on 2004 were considered investment properties. a random sample of 800 homes sold in 2004 is obtained. What is the probability that at most 200 homes are used as an investment property?

TO DrBob222 Science
1. with respect to ion count, why is water considered to be neutral? 2. How do the number of H+ and OH- ions compare after a.) HI is added to water? b.)KBr is added to water? c.)KOH is added to water? 3. Give the Arrhenius definitions for salts. Thanks :)

TO: DrBob222 science help
1. with respect to ion count, why is water considered to be neutral? 2. How do the number of H+ and OH- ions compare after a.) HI is added to water? b.)KBr is added to water? c.)KOH is added to water? 3. Give the Arrhenius definitions for salts.

History
Help please You want to find a painting of Abraham at a religious art exhibit Where are you more likely to have success? in the Jewish, Christian, or Muslim displays only in the Jewish displays in the Christian and possibly the Jewish displays In the Christian and possibly ...

Statistic
Case 6.4 Maternal Serum Screening Test for Down syndrome Please keep in mind that I do not have a Math back ground so this is brand new to me and like a foreign language that I have never seen nor heard spoken before. Thank you for your help in advance. Pregnant women are ...

health
Which one of the following factors would be considered de-identified information' A. Patients name-Joe Black B.Patients policy number-12345678912 C. Social Security Number-555-121-2222 D. Patient condition-patient is improving

FP/101
Which of the following is considered an advantage of home ownership? A. You are responsible for all repairs and maintenance. B. Interest paid on the mortgage of your home is tax deductible. C. Mortgage payments are always lower than rent payments. D. Profits on real estate are...

Economics(Please check, thank you)
Is leisure time considered an inferior good when the substitution effect dominates? I think that the answer is yes because if you are willing to work more hours in order to make more money than you do not value leisure time that much. Is this correct? Thank you!

statistics help
The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained what is the probability that AT LEAST 175 home are going to be used as investment property?

6th grade
I need a definition and examples of dynamic system- under natural resources, the teacher's definition is - a system that changes( kind of vague)

Science
What are some abiotic changes that might occur if the temperature of the tundra increased. The exact temperature doesn't matter, just enough to change the tundra.

history
address the following points: The societal changes in Europe that led to the exploration of other lands The advances in Europe that made exploration possible

adult development psyc 307
identify and decribe the physical,conitive, and socioemotional changes that we experience during the early adult stage of development?

chemistry
SO42- + HAsO2+ 2H+H3AsO4 + SO2 1. In the above reaction, the oxidation state of sulfur changes from (Answer) to (Answer) 2. How many electrons are transferred in the reaction?

chemistry
3PbO2 + 2Cr3++ 2H2O3Pb2+ + 2CrO42-+ 4H+ 1. In the above reaction, the oxidation state of chromium changes from (answer) to (answer). 2. How many electrons are transferred in the reaction?

Spreadsheet
Changes in Excel default characteristics apply only to: A. The Current workbook B. The Current worksheet C. New Workbooks D. Old Workbooks The answer is C

Science
1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery

History
How did changes in American Society during the 1970s affect religion in the nation? How did this change in religion affect politics? Please, can I get a quick answer!

geography
In South Asia, where does rain fall in August? In February? What are the seasonal changes caused by the movement of the ITCZ. I know that the Intertropical Convergence Zone is related to the Asian monsoon, but I'm confused on their relativity. Please help me clarify this ...

Communication Theory
Are we losing our ability to read, but gaining a different kind of literacy? How does constant presentation by the media change the nature of national leadership, gender roles and maturity? Is it possible to test and measure these changes?

Geography
18. Changes occurred in Eastern Europe in the late 1980s and 1990s when the region a. experienced widespread agrarian reforms b. strengthened its ties with the Soviet Union c. changed from an industrial to and agricultural society d. moved away from communism D? Thanks -MC

us history
One of the significant changes in atmosphere in Jefferson's administration was: the number of common people involved in government the closing of the Bank of the United States the widespread dismissal of Federalist officeholders the reinstatement of the Alien and Sedition Acts

chemistry
Which of the following is a situation where an object’s potential energy varies as a result of changes due to its chemical composition? The melting of ice. The burning of wood. A ball rolling down a hill. A parachute slowing a skydiver's fall.

Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds

American History
The politicians who met at the Hartford Convention in1814 A. recommended changes in the Consitution B. represented the interests of the cotton-growing states C. favored secession from the Unioun D. were mainly concerned with increasing trade with British I choose A

health
Sodium intake can be controlled by A. carefully reading labels of processed foods. B. choosing frozen dinners over fast foods. C. keeping a blood pressure level higher than 140 over less than 85. D. increasing your intake of water to balance the sodium in your bloodstream. am ...

health
The function of the sinoatrial node is to A. keep the heart beating. B. filter lymph. C. prevent blood from backing up into the atrium. D. divide the right and left sides of the heart. The sinoatrial node is also known as the pacemaker of the heart because it sets the pace of ...

health
The function of the sinoatrial node is to A. keep the heart beating. B. filter lymph. C. prevent blood from backing up into the atrium. D. divide the right and left sides of the heart. The sinoatrial node is also known as the pacemaker of the heart because it sets the pace of ...

science
One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more strongly than oxygen does. The hemoglobin – CO bond absorbs radiation of 1953 cm–1, which are in units of wavenumbers. Wavenumber is defined as the reciprocal of wavelength, in ...

science
One reason carbon monoxide (CO) is toxic in that it bind to the blood protein hemoglobin more strongly than oxygen does. The hemoglobin – CO bond absorbs radiation of 1953 cm–1, which are in units of wavenumbers. Wavenumber is defined as the reciprocal of wavelength, in ...

Calculus Help
I am given this data table: Time After Consumption (min): 30, 60, 90, 120, 150, 180 Amount of Codeine in Blood (mg): 27.0, 23.5, 21.2, 18.7, 16.6, 14.5 Question: I created a scatter plot of the data. How would I determine an equation to model the amount of codeine in the ...

English
I just wanted to know if the following rephrases are possible. 1) African cheetahs stalk their prey in semi-arid grassland. 2) They catch, capture, their prey in semi-arid grassland. (are these verbs possible to rephrase "stall"?) 3) They follow their prey quietly in order to ...

Social Studies
How could the North's factories be considered an advantage? A. The factories could sell surplus goods to Europe for money B. The factories could be converted to making supplies for the army C. The factories could get cotton from the West instead D. The factories could use ...

statistics
A normal distribution has a mean of 20 and a standard deviation of 2. If you convert every score in the distribution to Z scores, which of the following statements would be true of the resulting distribution?

engineering mechanics
a 75kg person is standing on a board inclined at 30 angle type the horizontal .what are the magnitudes of gravitational components normal to the board and parallel to the board

science
What would happen if the temperature of the tundra increased by 20*F? The exact degree doesn't matter so if you answer my question but with like 10 degrees or 50 or something please tell me. Oh and please don't just list a site that would help me. I need the answer and I've ...

9th grade
1. when non-human things are given simple human characteristics, this is an example of what? 2. however, when non-human things are given the ability to think, talk, and act consciously like humans, that is an example of what? 3. in what point-of-view is the narrator outside ...

English 225
Which of the following is true of the screenwriter’s role in making movies? (Points : 1) A film begins with a writer’s story Film is generally considered a writer’s medium The writer is more important than the rest of the cast and crew Writing scripts is an exact science

Parents, Finances, and School-Age Children
Of the following, which is the IRS publication considered to be the many day care providers? A. Farmer's Tax Guide B. Travel, Entertainment, Gift, and Car Expenses C. Your Federal Income Tax (For Individuals) D. Tax Guide for Small Business C.

Constitution
Which of the following cases is most likely to be considered a political question and nonjudiciable? Representatives A. Gerrymandering B. A congressional decision that an amendment has been ratified C. A congressional decision to not seat an elected member of the House of D. A...

PHYSICS
QUIZ 1 AND 2, PROBLEM 3 A block of mass M is pulled with a rope that exerts a force of a magnitude F, causing it to slide over horizontal ground with kinetic coefficient of friction μ (use "mu" when you input your answer). The force is applied at angle θ (use "theta...

AP Physics
A small block with mass 0.035 kg slides in a vertical circle of radius 0.425 m on the inside of a circular track. During one of the revolutions of the block, when the block is at the bottom of its path, point A, the magnitude of the normal force exerted on the block by the ...

Bio
A lot of livestock is being given growth stimulating hormones. How does this affect humans that are eating this livestock? I don't remember what the word is but I remember that with presticides that they remain in the body and they biosomething so theres more of it as we move ...

Health
26. When someone is choking you need to perform chest compressions. -False? 31. The female reproductive cell is called an egg. -False? 34. If the egg is not fertilized, then conception occurs. -False? 45. The embryo is a blood vessel-rich organ that forms in a mother's uterus...

Health
26. When someone is choking you need to perform chest compressions. -False? 31. The female reproductive cell is called an egg. -False? 34. If the egg is not fertilized, then conception occurs. -False? 45. The embryo is a blood vessel-rich organ that forms in a mother's uterus...

Chemistry help
Average human blood serum contains 18 mg of K+ Calculate: a) the molar concentration for each of these species; use 1.00 g/mL for the density of serum. I have worked as of this (18 mg K+/100 mL)(1mL/1g)(1 mmol/39.10mg)(1g/1000mg). But it seems that some units are not cancelled...

Physics
Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.470 m below the heart. Calculate the pressures you would observe if the pressures at the heart are 119 over 80 mm Hg. Assume there is no loss of pressure due to resistance in the ...

eng 12
I got to analyze suzukis history at our peril. How should i present my analysis? suppose to tell why its expository? then provide examples. Should i state why in the first paragraph why its expoisitory? ie he talks about how humans need to protect the environment or it will ...

math
The game called dots is played by rolling a fair die and receiving 1$ for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game? Not a clue on this one.

Stastics
An employer claims that full time employees have a mean income of $35,000. A sample of 200 employees were considered. Their mean salaray was $34,000. POP sd of $4,000. Does her claim seem reasonable at at 0.05 significance level?

STATISTIC ****HELP****
The tests done to determine if someone is HIV positive are called Enzyme immunoassay or EIA tests. The test screens a blood sample for the presence of antibodies to HIV. Like most tests, this test is not perfect. The table below shows the approximate probabilities of positive ...

Physics
How come a heavy truck and a small car can both travel safely at the same speed around an icy, banked-curve road? I would think that since mass is increased, normal force is therefore increased, and force of friction is therefore increased. And since the opposing force, the ...

chemistry
So i had trouble finding the answers to these questions on a lab: Background: If we were using a burret/flask instead of a pipette and well plates. Before you started, the buret must be rinsed with 1 ml of distilled water and then 1 ml of NaOH solution. The flask would also be...

Chemistry
So i had trouble finding the answers to these questions on a lab: Background: If we were using a burret/flask instead of a pipette and well plates. Before you started, the buret must be rinsed with 1 ml of distilled water and then 1 ml of NaOH solution. The flask would also be...

Business communication
You submitted what you thought was a masterful report to your boss over three weeks ago. The report analyzes current department productivity and recommends several steps that you think will improve employee output without increasing individual workloads. "Brilliant," you ...

Chemistry
Could Anyone please let me know if I'm right I think that is 1 and 2?? which of the following changes will increase reaction rate? 1. An increase in the concentration of reactants 2. An increase in temperature 3. Higher-energy collisions between reacting molecules

Help please edu.
Young children with autism: A. Will never talk B. relate to people differently than typical children do C. get along better with older children D. like changes in their routine I think B am I correct

plane geometry
a room is 12 ft wide, 15 ft long and 8 ft high. if an air conditioner changes the air once every five minutes, how many cubic feet of air does it change per hour

Biology
what ecological changes would occur before a primary succession site is capable of sustaining a white spruce forest?? i understand what primary succession is...

Chemistry
Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?

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