Posts by sue

Total # Posts: 1,103

Biology
Name 3 structures that help focus the light rays entering the eye: lens iris cornea Can someone tell me if this is right, if not a site I can check, please. Thanks

Chemistry
An unknown monoprotic weak acid, HA, has a molar mass of 65.0. A solution contains 2.20 g of HA dissolved 750. mL of solution. The solution has a pH of 2.200. What is the value of Ka for HA?

chemistry
ohh..I understand now, I forgot all about the ice table...I got 1.8 as well and that is the correct answer...Thanks!

chemistry
so (4.8e-2*30.0mL)=1.44 (3.6e-2*21.5mL)=.774 now what do I do

chemistry
I did: (4.8e-2*30.0mL)/1000mL=.0014 (3.6e-2*21.5mL)/1000mL=7.74e-4 Then I added the two to get .005474 then divided that by the total L to get .106 I then took the -log(.106) to get .975, but that's the wrong answer

chemistry
If 30.0 mL of 4.8 10-2 M HBr is added to 21.5 mL of 3.6 10-2 M NaOH, what is the pH of the solution?

chemistry
I do not understand how to determine if the substance is an bronsted acid or base

chemistry
Which of the following substances can act as a Bronsted acid in aqueous solution? (Select all that apply.) C3H8 NH41+ HCl H2 H2O H2CO3 PH3 Which of the following substances can act as a Bronsted base in aqueous solution? (Select all that apply.) PH3 PH41+ CO32- SO42- H2 CH4 NH3

Physical Science
How does the study of heat relate to the kinetic theory of matter? (Answer in a simplified terms please)

Physical Science
How does the study of heat relate to the kinetic theory of matter? (Answer in a simplified terms please)

Physical Science
How does the study of heat relate to the kinetic theory of matter?

algebra
you and a friend oplay a game in which you each toss a coin. you score a point for each head and your friend scroes a point for each tail. the first person to score ten points wins. the score is 8 to 6 in your favor. describe a simulation that completes the game and use it to ...

Physical Science
The vacuum in the doubled-walled vacuum bottle takes care of heat flow by what?

Physcial Science
The silvered wall of a vacuum bottle takes care of heat flow by what?

college
The vacuum in the doubled-walled vacuum bottle takes care of heat flow by what?

social studies
If the U.S. were to have another constitutional convention, would we keep a federal system or change it?

college
If the U.S. were to have another constitutional convention, would we keep a federal system or change it?

chemistry
For the equilibrium system: H2 + F2 <----> 2HF Kc = 230 If 5.80 mol of hydrogen gas and 5.80 mole are added to a 1.00 L flask what will be the concentration of HF at equilibrium?

chemistry
For the following reaction: 2NH3 ----> N2 + 3H3 6.42 moles of NH3 were placed in a 7.4 L flask and allowed to come to equilibrium. 3.60 moles of NH3 remain at equilibrium. Calculate Kc for the reaction.

chemistry
would you have to change the moles of NH3 to atm?

chemistry
For the following reaction: 2NH3 ----> N2 + 3H3 6.42 moles of NH3 were placed in a 7.4 L flask and allowed to come to equilibrium. 3.60 moles of NH3 remain at equilibrium. Calculate Kc for the reaction.

Science
Show a Venn Diagram comparing velocity and speed.

English
Thanks so much for your help. You are always great!!

English
On a Works Cited page, If I have 2 articles, they don't give an author name but says by: Associated Press and CNN Wire Staff, do I put that in the author place or do I skip that and start with the title. Thanks in advance.

The cost of running a business is a combination of items called

college
I am having difficulties doing an eguation for two different times/seconds on an object that is thrown in the air......please help!

Physics
Poo'm

Math
One morning Martin drove 80 miles in 2 hours. After lunch,he covered 100 miles more in 3hours .What was his average rate of speed in miles per hour,for the 5 hours of driving?

math
2x-5/10 less than -5 or 2x-5/10 greater than 9. solve the compound inequality.

math (help!!!!)
one canned jucie drink is 15% orange jucie; another is 10% orange jucie. How many liters of each should be mixed together in order to get 5L that is 11% orange jucie? How many liter of the 15% orange jucie and how many liters of the 10% orange jucie should be in this mixture

math
one canned jucie drink is 15% orange jucie; another is 10% orange jucie. How many liters of each should be mixed together in order to get 5L that is 11% orange jucie? How many liter of the 15% orange jucie and how many liters of the 10% orange jucie should be in this mixture

math
a company's balance sheet shows tatal assets of \$450,991, total current liabilities of \$47,342, and total long -term liabilities of \$150,509. its total stockholder equity must be

Biology
THANKS so much!!!!

Biology
I have a question: Name the differences in muscles between a weightlifter and long distance runner? A long distance runner has lean muscles but would you say weightlifters have bulk for muscles? I can't find a web site to help me. Any ideas. Thanks

Government
Thank you

Government
I have to list the majority and minority leader of both the house and senate: House majority -Steny Hoyer House minority -John Boehner Senate majority - Harry Reid Senate minority - Mitch McConnell I believe this is correct but in the senate it also lists : Assist majority - ...

Probabability
You walk into a classroom containing 20 other people. What is the probability that at least one of the other people has the same birthday (month and day) as you?

Can someone give me a web site that shows the internal diagram of a chicken wing: I need the tendon, ligament and cartilage. I have been looking a long time for chicken wing and even birds but can't find what I need. Thanks

algebra 1
y=2x-5 4x-y=7

Manageral accounting
how, a issuing of a note payable in exchange for computer equipment, is recorded in a cash flow statement?

English
Yes Thanks

English
THANKS for all your help. I was going nuts only finding title page in my book. This was her instructions: Page 1- Cover page Pages 2-5 Main paper (double spaced, 12 size font) Page 6 - References Thanks again

English
Thanks...that's one of the ones I found but some also show a page number. I don't know which is really right, and my paper is due tomorrow and can't ask the teacher.

English
Can someone please tell me the format of a COVER page in MLA. I'm looking in my 6th edition book and I find title page but not cover page. I beleive the title goes 1/3 page down, then may 10 lines or so your name, then at the bottom the class, teacher, and date, but I don...

Small companies typically have difficulty competing against large multinationals when their governments take part in regional trade blocs. What could governments do to help their small companies compete after the formation of such blocs

Computers
To create a software environment, a programmer must define the _____ for each element in the environment. a)properties b)keys c)ranking d)order I think it is a) properties, but I am having a difficult time locating the answer in my text to make sure.

high school
In highschool I enjoyed the following subjects _ shop, art class, lunch and study hall. A. Comma B. Colon C. Simicolon D. Ellipese Thank you

Which expression could you use to find the measure of an angle that is supplementary to 63 degrees. A) 90 degrees + 63 degrees B) 90 degrees - 63 degrees C) 180 degrees + 63 degrees D) 180 degrees - 63 degrees

You just flip the numbers. 4/7

acc/300
do you have answers to the acc/300 intro to accounting principles final examination

acct
why is internal control important?

anthropology
what are the leading economic countries and why?

math
Solve the system of equations by Elimination OR Substitution. Explain why you chose one method over the other. 3x – 2y = 8 2x + 5y = -1

math
Four different positive integers sum to one hundred twenty-five. If you increase one of these numbers by four, decrease the second by four, the multuply the third by four, and divide the last by four, you will produce four equivalent numbers. What are the four original numbers...

math 116
What is the difference between domain and range? The domain of a function is the set of all values for the independent variable (in the following example, that's the x) for which the function is defined. That is, if you have a function such as f(x) = 1/x Then this function...

science
why is a sound made when door is slam ? why is a sound made whenyou rub yoyr fingers on comb teeth?

college
The yearly cost T, in thousands of dollars, of tuition and required fees at a private college can be approximated by T = (3/5)n + 5, where n is the number of years since 1985. That is, n = 0 corresponds to 1985, n = 5 corresponds to 1990 and so on. Find the cost of tuition in ...

Health
80

what are some barriers teachers face when doing an observation on each child in he class?

HCA 210
What are some of the long-term facilities in your community or state? Are there any essential services missing? If yes, what are they? If no, what services might be improved on? What other health care services are offered in your community or state that are not long-term care ...

English-Writing

English-Writing
In citing work in an essay from a textbook in MLA format do you: use the textbook name and then the page number or do you use the publishers name with the page number?

medical terminoolgy
describe the appraoch for body cavities

math
Find equivalent fractions with common denominator and order form least to greatest: 2/3, 1/2, 5/12

accounting
using the equation A=L+OE how would you balance this problem: You buy acompany for \$200,000 - Assets are land \$50,000, building \$130,000, equip \$20,000. Took 70,000 from personal bank account to invest in business. Made a down payment of \$40,000 and deposited the rest in the ...

Math
Which of the following is not a characteristic of Students' t distribution? A) For large samples, the t and z distributions are nearly equivalent. B) depends on degrees of freedom. C) symmetric distribution D) mean of 1

Economics
Can someone tell me if I have this right, or backwards?? When the US dollar depreciates foreign goods, assets, and services are more expensive and when the US dollar appreciates they are cheaper. Thanks

algebra
IN the first 4 games of the season a football team scores a total of 68 points at this rate how many points will the team score in 11 games

THe Farmer has 20 sheep and pigs. He has 6 fewer sheep than pigs. How many pigs does HE have?

Chemistry
How many moles of ammonium sulfate were released in 25.3 kg?

microbiology
describe the factors tha may alter the expression of the cultural characteristics of bacteria?

chem
Why do we have to remove air bubbles in a chemical reaction?

The secret of gumbo grove
I also need summaries

Biology
Can anyone give me a web site that can give me information for a lab report on observing diffusion? Thanks

MATH

MATH
Joan can mow a 10-acre field in 5 hours. How long would it take her to mow a 3.8-acre field?

calculus
In your new job as a strategic planner at BusCalcInc, you have been asked to evaluate a proposal for manufacturing a new product. Other analysts have determined that a linear function is a reasonable estimate for the total cost C(x) in dollars to produce x items. Another team ...

Math
If a composite number has the first five prime numbers as factors, what is the smallest number it could be? Write that number's prime factorization.

Math
Test Goldbach's theory with the numbers 6 and 50

Economics
Thank-you. I found it outside the chapter we are doing. Pure commard

Economics
An economic system where there is little freedon of choice? Socialism is correct, right. Thanks

Criminal Justice
I need to find out information about the personnel of the Battle Creek city police in Michigan.

English
Thank you

English
Can anyone help me find a website that explains the likes & dislikes of the Anglo Saxons?

Math
Nevermind. I got the answer... no solution. Thank you.

Math
(x/(x+8))-(8/(x-8))=(x^2+64)/(x^2-64) Would the answer be no solution? If so, why? Thanks again.

Math

Math
Would it be 99/10?

Math
The officejet printer can copy Sue's dissertation in 18 min. The laserjet printer can copy the same document in 22 min. If the two machines work together how long would they take to copy the dissertation? Any help would be greatly appreciated.

Number Line
If an integer a is pictured on the number line then the distance from the point on the number line that represents the integer to the origin is ƒaƒ. Using this idea answer the following. a. Explain why ƒa 2 bƒ is the distance between the points that ...

Mathy
On a 14-day vacation, Glenn increased his caloric intake by 1500 calories per day. He also worked out more than usual by swimming 2 hr a day. Swimming burns 666 calories per hour, and a net gain of 3500 calories adds 1 lb of weight. Did Glenn gain at least 1 lb during his ...

total number of spectators are 1/4 men at the cirucus how and 2/5 of the remaining are woman. there 132 woman at he show. how many children are the the circus show

Chemistry
Are polysaccharides absorbed into the blood directly from the gut without the need for digestion? I think that is true but I can't find it written.

Anatomy
I believe this question is True but can't find it in my book: Polysaccharides can be absorbed into the blood directly from the gut without the need for digestion. I have some notes on it, but not that exact thing. Thanks

psychlogy
How does nature and nurture effect gender identity?

Math
Use an exponent to write an expression with five 3s that has a value of 0.

Anatomy check
Just want to make sure I'm correct: The elbow lies (proximal or distal) to the forearm. Proximal

Anatomy check
Just want to make sure I'm correct: The lungs are (medial or lateral) to the heart. Lateral

Anatomy check
I just want to make sure this answer is correct: The stomach is (superior or posterior) to the diaphragm? posterior Thanks

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