Friday

April 18, 2014

April 18, 2014

Total # Posts: 811

**science**

If solid copper sulfate is mixed with water, what is formed? A mixture, a solvent, a solution or both a mixture and a solution?

**science**

A substance seems to completely fill a container, but more can be forced in. Is the substance a solid, liguid, gas or none of these????

**History**

I need to know if there is a site that lists federal presidential campaign financing laws, legal & illegal. All I can find is sites that have box diagrams. Thanks

**physical science**

which of the following properties of light support the wave theory; existence of photons, can be reflected, can be refracted?

**physical science**

which substance is a base in this equation, Ba(OH)2 + 2 HNO3

**geography**

I have to put indicators of measuring development in countries in order of importance they are :- literacy rates number of people per doctor, gross national product, % of population access to clean water, population density, % people employed in agriculture, % population livin...

**Trig. **

In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B?

**Logs**

Solve for x. log5x=(1/2). Express the answer to the nearest hundredth.

**Geometry **

In triangle ABC, side a=7, b=6, and c=8. Find the measure of angle B to the nearest degree.

**Math**

thanks for your help

**Math**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% ---------- 5% 100% ---------15% 95% --------- 15% 90% -----------5% 94.5% --------60% I multiplied the total grade by the percent...

**Statistics**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% 5% 100% 15% 95% 15% 90% 5% 94.5% 60% I multiplied the total grade by the percent, then added the percent. But I get 109.20 as a f...

**science**

what does FDA stand for in Australia, or what is it called in Australia?

**science**

Dr Bob What does FDA stand for?

**chemistry**

what does FDA stand for?

**chemistry**

In the synthesis of Aspirin, would you eat your own aspirin crystals? If not, provide three (3) reasons why not?

**Biology**

Thanks...this site is the best!!

**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.

**business math**

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!

**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 - R...

**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?

**Biology -Please**

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

**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&...

**Business**

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

**6th grade math**

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

**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 ...

**adult education early childhood education**

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**

Thanks for your time.

**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 b...

**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

**3rd grade**

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**

I still do not understan this problem can someone please help me out.

**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.

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