Sunday

September 21, 2014

September 21, 2014

Total # Posts: 307

**chemistry AP**

You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...
*March 28, 2010*

**chemistry AP**

You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...
*March 27, 2010*

**chemistry AP**

methyl red has the following color changes red 4.2 -8.3 yellow a)write the ionic equilibrium equation b) If a small quantity of methyl red is placed in a solution with a pH of 4.5 . calculate the approximate value of [In]/[HIn]. What colour would be observed on the basis of ...
*March 27, 2010*

**ALGEBRA**

I NEED help on the following problem can some one help me please and thanks 5x-y+z= 8 2x+2y-3z= 28 x-3y+2z= -15
*March 18, 2010*

**MATH**

can some one please help to solve this problem. Add. reduce to lowest terms, if possible 3/y+3+y+7-y-9+/7/y-3
*March 17, 2010*

**math**

if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.
*March 4, 2010*

**math**

if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.
*March 4, 2010*

**chemistry**

1. PV=nRT Par(1L)=(0.035mol)(0.0821)(25+273) =0.856 atm 2.Ptotal = Par + Pethane Pethane= 1.00atm-0.856atm = 0.144atm
*March 1, 2010*

**science**

Are there any questions on earth that haven't been answered or are to compicated for scientists to get to or understand?
*March 1, 2010*

**4th grade**

For solid the particles stay together you can compare that to best friends that stick together. For Liquid the particles move and start going everywhere, compare that to friends. For gas the particles move really fast and some go out because they are moving too fast why don&#...
*March 1, 2010*

**science**

Which class are you in???
*March 1, 2010*

**MGT Business**

What are the implications of "compare and contrast" techniques used in the workplace?
*February 18, 2010*

**5th grade**

what can you tell me about Amerigo Vespucci?
*November 22, 2009*

**Math**

The deck in hopes backyard is round. It has 5 posts evenly spaced around the edge to support a trellis. For her birthday party, she wants to connect each post to all the other posts with crepe-paper streamers. How many streamers will she need?
*November 22, 2009*

**visual**

What comment is Billy Wilder making with the reversal of sexual stereotypes in Some Like it Hot.?
*October 21, 2009*

**rounding decimals to the greatest number**

what is the greatest no. thatcan be rounded to the nearest ten tho usand
*October 1, 2009*

**3rd grade math**

Write in expanded form 17,045 17,000 + 40 + 5 ? is this right
*September 29, 2009*

**Algebra 1A**

one more than one-fourth the square of a number x is y
*September 26, 2009*

**science**

okay
*September 3, 2009*

**science**

an experiment where only one variable is changed and all others are kept constant
*September 3, 2009*

**science**

thanks
*September 3, 2009*

**science**

i found it thanks also what are science subjects and their definitions
*September 3, 2009*

**science**

okay thanks and how about 25 tools used by scientists and tell what they are used for
*September 3, 2009*

**science**

what is 25 science careers with their definitions
*September 3, 2009*

**science**

okay what are devices that increase the five senses' abilities to obtain information
*September 3, 2009*

**science**

hypothesis
*September 3, 2009*

**science**

thanks whawt is a proposed answer to a question
*September 3, 2009*

**science**

i cant find it
*September 3, 2009*

**science**

thank you umm what is the variable the experimenter changes
*September 3, 2009*

**science**

whats is an organized plan to solve problems
*September 3, 2009*

**General Chemistry**

.702
*September 1, 2009*

**math**

Tell whether the events are independent or dependent. Explain. selecting a compact disc from a storage case and then selecting a second disc without replacing the first.
*June 13, 2009*

**Math**

yes
*June 13, 2009*

**Math**

Two coins are tossed in order. What is the probability of getting a head on the first coin and then getting a tail on the second coin?
*June 13, 2009*

**Math**

Two dice are rolled. Find the probability that an even number is rolled on one die and an odd number is rolled on the second die.
*June 13, 2009*

**earth science**

What evidence do astronomers use to detect black holes? please help and thank you :)
*May 31, 2009*

**science**

Can you please tell me where is the sun in our galaxy? Also, some binary stars are called eclipsing binaries. Explain why this term is appropriate. (it gives a hint, saying: think about Algol as you come up with an answer.) I don't get it... Please help :) Thank you very ...
*May 30, 2009*

**math**

Write a function rule that relates X and Y. 1. (-2,0), (-1,1), (0,2), (1,3), (2,4) 2. (-3,-5), (0,1), (3,7), (6,13), (9,19)
*April 23, 2009*

**math**

4X-10=Y FIND THE ORDERED PAIRS PLEASE
*April 22, 2009*

**math**

Hello IS ANYONE THERE!!!!!!!!!!!!!!!(:
*April 22, 2009*

**math**

Please help its an emergency i cnt find the anseron line ive looked everywhere
*April 22, 2009*

**math**

4x-10=y order pairs
*April 22, 2009*

**math...**

the two input and output tables I made are not really easy to follow. But this is what I meant: (x,y) 1. (-2, 4), (0,0), (2,-4), (4,-8) 2. (0,1), (1,4), (2,7), (3,10)
*April 22, 2009*

**math...**

write a function that relates the input X and the output Y. 1. input x: -2 0 2 4 output y: 4 0 -4 -8 2. input x: 0 1 2 3 output y: 1 4 7 10 thanks )
*April 22, 2009*

**math**

Thanks for the reply =) And about the previous post, I did substitute it and from what I got it is the solution for the ineaqulity...
*April 22, 2009*

**math**

Tell whether the relation is a function. Explain your answer. (-6,-3), (-4,-2), (-2,0), (2,0), (4,-2), (6,-3).
*April 22, 2009*

**math**

I would, actually =)
*April 22, 2009*

**math**

tell whether the point (9,3) is a solution of the inequality 4x-5y<26 i know it's really easy but i'm being incredibly lazy right now.
*April 22, 2009*

**math**

1. the x-intercept of a line is -3. the y-intercept of the line is 6. what is the slope of the line? 2. what is the equation in slope-intercept form of the line described in Exercise 1?
*April 22, 2009*

**math**

the roof of a house rises 3 feet vartically for every 5 feet it runs horizontally. what is the slope of the roof?
*April 22, 2009*

**math**

use the concept of slope to explain whether the three points A(3,1), B(-2,2), and C(-4,4) can all be points on the same line. thanks =)
*April 22, 2009*

**Math**

Ok and theres alot of questions can you help
*April 21, 2009*

**Math**

You have to guess an anser is true or false what is the probability that you could get it right?
*April 21, 2009*

**Math**

Ok thanks and do you know the second one
*April 21, 2009*

**Math**

You have to guess the anser is true or false question what is the probability you will anser it correctly???
*April 21, 2009*

**Math**

An Octohedron (8sided solid)with sides numbered 1 through 8 is rolled What i the probability of rolling a 6
*April 21, 2009*

**math**

a aquare pyrimid has a volume of 1280 cubic meters. the base side lengths are 16 meters. find the perpendicular height of the pyramid.
*April 10, 2009*

**Microeconomics**

I am not sure whether these questions are true or false: 1. Surpluses of dairy products that have regulated prices usually occur because the demand is price inelastic. 2. You observe that a linear demand curve shifts to the right, this means that the price elasticity of demand...
*April 9, 2009*

**Math**

find equivalent fraction with a common denominator 2/3,1/2,5/12
*March 24, 2009*

**physical science**

600J of work hoisting a 20kg bale of hay, what height was it lifted? how can I calulated this equation?
*March 12, 2009*

**physics**

how much work can a 50.0kg wreckin ball traveling at 5.00m/s do when striking a building
*March 12, 2009*

**Math**

evaluate (9-8X).12 If X=3/4
*March 11, 2009*

**6th grade**

evaluate (9-8X).12 If X=3/4
*March 11, 2009*

**6th grade**

find the (9+8x).12= X=3/4
*March 11, 2009*

**Books**

what's the book Jurassic park about?
*January 11, 2009*

**math logarithm**

proof: 2/ log a base 9 - 1/ log a base 5 = 3/ log a base 3??
*January 7, 2009*

**math logarithm**

proof: 2/ log a base 9 - 1/ log a base 5 = 3/ log a base 3??
*January 7, 2009*

**MATH PLEASE HELP!**

PROOF: 2/LOG A BASE 9 - 1/ LOG A BASE 5 = 3/ LOG A BASE 3
*January 7, 2009*

**social studies**

I Didnt get any homework assignments
*January 4, 2009*

**6th grade Social Studies**

Mrs. Myers just told you the answer
*December 15, 2008*

**7th grade pre-alge**

8=p
*December 15, 2008*

**Math**

what is the sum of fractions 1/4,3/8, and 5/14?
*December 6, 2008*

**Science**

What is Uranium Hexafluoride?
*November 19, 2008*

**3rd grade**

Yes because when you have equal groups you can multiple. When you have unequal you my must add.
*November 12, 2008*

**British Lit.**

Elizabethan English
*October 21, 2008*

**6th grademath**

how do you use front end estimation to find the sum of 5.19 and 2.79
*October 9, 2008*

**Chemistry**

If 10.0 mol of butane burn completely, wgat thermal energy would be produced?
*September 29, 2008*

**math- Patterns... i tried it many times..HELP!!!!**

39,40,36,37,33,34
*September 16, 2008*

**chemistry**

do gases have a high or low density?
*April 10, 2008*

**chemistry**

In what ways is the large scale generation of sulfur oxides easier to control than the generation of nitrogen oxides? and in what ways is it more difficult? please help me
*April 10, 2008*

**chemistry**

is it better to describe a buffered solution as resisting or preventing all changes in pH? why?
*April 8, 2008*

**Chemistry**

usinf the kinetic molecular theory, why does the gas pressure increase when volume of gas decreases at constant temperature?
*April 5, 2008*

**chemistry**

cloud has a pH of 2.0 rainfall has a pH of 5.5 how many times more acidic has the moisture been in the clouds? please help
*April 5, 2008*

**Micro Economics**

Explain...
*February 1, 2008*

**Earth Science**

Which one of the following landforms would be created by outwash? 1) Moraines 2) Eskers 3) Drumlins 4) Erractics I have read all I can, but can not get this one. I am sure it is not #4 - Erractics.
*January 22, 2008*

**English**

Thank you Ms. Sue for all your help.
*December 3, 2007*

**English**

Identify the sentence that contains a noun cluase in italics. 1) Betty wants "to harvest the corn". 2) "When should Betty" harves the corn? 3) Betty would like "to harvest the corn". 4) "What Betty wants" is to harvest the corn. This one...
*December 3, 2007*

**English**

Identify the compound sentence. 1) Last summer, we decided to drive to the beach. 2) Because it had been sunny all week, we did not bring umbrellas. 3) The rain began to fall, but we did not want to leave. 4) While it rained on the beach, we swam in the ocean. This one I think...
*December 3, 2007*

**English**

Whcih one of the following sentences is puntuated correctly? 1) The sea calmed but not boats left shore. 2) The sea calmed, but no boats left shore. 3) The sea calmed; but no boats, left shore. 4) The sea, calmed, but no boats, left shore. #2 is the one I think is correct.
*December 3, 2007*

**English**

Which of the following is a complex sentence that contains a dependent adverbial clause? 1) Mark expects the photo to arrive on Tuesday. 2)Marks expects the photo to arrive late. 3) Mark expects the photo to arrive in damaged condition. 4) Mark expects the photo to arrive when...
*December 3, 2007*

**English**

Will do. Thank You!
*December 1, 2007*

**English**

#c The rabbit jumped into the bushes, an the dog followed it.
*December 1, 2007*

**English**

How could you combine the following two sentences into one compound sentence? The rabbit jumped into the bushes. The dog followed it. a. After the rabbit jumped into the bushes, the dog followed it. b. The dog and the rabbit jumped into the bushes. c. The rabbit jumped into ...
*December 1, 2007*

**English**

Thanks!!
*December 1, 2007*

**English**

#B Sue gae Jim a new racket. He left for the tennis courts.
*December 1, 2007*

**English**

Which of the following is a compound sentence? a. Kim will take her daughter shopping when she learns to behave in public. b. Sue gave Jim a new racket, and he left for the tennis courts. c. Rain and heavy winds caused damage along the coast. d. We found our way home without a...
*December 1, 2007*

**7th grade math**

the sum of the items in a set of data divided by the number of items in the set also called a average
*September 4, 2007*

**Geography**

Hey there! I need some cool Australian Search engines. Could anyone post some? Thanks! I went to Google and searched for Australia search engine. This is the first site. http://www.google.com.au/
*August 15, 2007*

**Geography**

Look I am totally paranoid I have been on every site on earth and I still havent found answers to any of these questions on!@#$%^&ington Green Gardens Australia: Safety,rules and interesting facts. Please help! Check these sites. http://www.about-australia.com/travel-guides/...
*August 15, 2007*

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