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August 23, 2014

Posts by Mark


Total # Posts: 1,245

chemistry.
2.02g of KNO3 ( Mz=101) is dissolved in sufficient water to prepare 0,500 dm3 of solution. What is the concentration of this solution in mol dm?
November 5, 2009

chemistry.
So what do we have to do in this case?
November 5, 2009

chemistry.
Which solution contains 0,1 mol of sodium hydroxide? A- 1 cm3 of 0,1 mol dm3 NaOH B 10 cm3 of 0,1 mol dm3 NaOH C 100 cm3################### d 100 cm3 ###################
November 5, 2009

Grammar
I'd appreciate if you would help with the other questions. Thank you.
November 4, 2009

Grammar
what is the adjective and adverb in the following sentences? The plane circled the vacant field and slowly came in for a smooth landing. You should not drive too fast; however, a slow driiver can be dangerous too. Mira has been faithfully practicing the cello lately. Luisa ...
November 4, 2009

English
You have some good ideas however, there are quite a few mistakes. Always build on your topic sentence. Also, be certain to always use your Spell Check. You might want to keep a dictioary handy when writing. Make certain your sentences are a complete thought. Try not to be too ...
November 4, 2009

possessive nouns
______ stories seemed unbelievable A. Survivors B. Survivor's C. Survivors' D. Surviors's
November 2, 2009

possessive nouns
Worry haunted the refugee ____ eyes A.childrens B.children's C. childrens'
November 2, 2009

possessive nouns
Money might be sewn into ____ coat linings. What is the answer A. women's C. Womens'
November 2, 2009

5th grade
Thats what I had but was not for sure. Thanks!
November 2, 2009

5th grade
Eight states border one or more of the five Great Lakes. Write a fraction representing the part of the 50 states that border a Great Lake. Write the fraction in simplest form.
November 2, 2009

English A1 Poem
Can any one help to analysis it.
October 27, 2009

English A1 Poem
All afternoon my brothers and I have worked in the orchard, Digging this hole, laying you into it, carefully packing the soil. Rain blackened the horizon, but cold winds kept it over the Pacific, And the sky above us stayed the dull gray Of an old year coming to an end. In ...
October 27, 2009

6th grade
how do you draw a diagram to find the solution to 2.6 devided by 0.4 ,and explain what the quotant means?
October 25, 2009

Calculus
maximum and minimum of y = cos(x) + sin (x)on the interval [0,2pi]
October 25, 2009

Exponential Decay
the half-life of carbon-11 is 20 minutes. How long will it btake for 600g of carbon-11 to decay to 30g?
October 22, 2009

The secret of gumbo grove
oh...im sorry then but thank you for attempting.
October 20, 2009

The secret of gumbo grove
do you know where i can find chapter summaries for this book.
October 20, 2009

Math
6/15= 2/5 divide 6 and 15 by 3 15/60=1/4 divide 15 and 60 by 15 78=78 (whole number)
October 19, 2009

Maths
im not sure im typing as i find them. A=total of counting the numbers 11,22,33,44,55,66,77,88,99,101,202,303 B) = total counting the numbers 11,22,33,44,55,66,77,88,99,101,202,303,404,505,606,707,808,909
October 19, 2009

Maths
what is a?
October 19, 2009

Grammer
yes you capitalize it
October 19, 2009

Family Report
What should i put in a report about my family?
October 19, 2009

guess and check
there are 42 question on lindas test. sum of the questions are 2 point and sum were 3 points. she got a perfect score. how many 2 question where there and 3 point questions were on lindas test
October 19, 2009

algebra1
the speed of train A is 8mph slower than the speed of train B. Train A travels 220 in the same time it takes train B to travel 260 miles. Find the speed for each train.
October 18, 2009

6th grade (vocabulary)
gather
October 18, 2009

summarizing book
can you summarize the summaries at this link? sparknotes website Search: A wrinkle in time
October 15, 2009

3rd grade
198+864=1062
October 14, 2009

Math
I dont think that is right answer is x=4 not sure how
October 14, 2009

Math
Solve. log(x^3)-log(2)=log(2x^2)
October 14, 2009

math grade 12
Solve. log(x^3)-log(2)=log(2x^2)
October 14, 2009

arithmetic
0.031
October 14, 2009

3rd grade math
write each addition vertically.decide which new groups you will make.then,add to see if you were correct. 256+1273___________ a new ten?____________ a new hundred?_________ a new thousand?____________ need answers and please explain
October 12, 2009

3rd grade
write addition vertically.decide which new groups you will make.then add to see if you are correct. 256+1273_________ a new ten?________ a new hundred?___________ a new thousand?_________ i need answer and explain how
October 12, 2009

chem
When 13 grams of a sample cools from 56c to 34.4cit loses 25.8 Joules of heat. What is the specific heat of the sample?
October 11, 2009

physics
I actually don't know where the 2s and 3m came from, I think it was a typo on my MSWord
October 10, 2009

physics
A motorist travels at a constant speed of 34.0 m/s through a school zone; exceeding the posted speed limit. A policeman, waits 7.0 s before giving chase at an acceleration of 3.9 m/s2. (a) Find the time required to catch the car, from the instant the car passes the policeman. ...
October 10, 2009

CALCULUS! PLEASE HELP URGENT!
I think it does. For answer choice one correct?
October 8, 2009

CALCULUS! PLEASE HELP URGENT!
I think all three of them have derivatives because when I put them into the calculator, I saw no discontinuities. but i am debating if it's II and III.
October 8, 2009

CALCULUS! PLEASE HELP URGENT!
Which of the following functions have a derivative at x=0? I. y= absolute value(x^3-3x^2) II y= square root(x^2+.01)- absolute value (x-1) III y= e^x/cosx
October 8, 2009

health
Strategies to improve patient intake
October 5, 2009

Algebra
translate to an inequality. a number is at least 10. the answer is ? ? ? use x as the variable. Thank you
September 30, 2009

Chemistry
what is the balanced equation? how do i convert moles of CH4 and Cl2 to moles of the product??
September 29, 2009

algebra
what numbers factor 25x^2 - 10x + 126
September 24, 2009

9th grade, Biology honors
That it is like diffusion but with water.
September 23, 2009

Spelling/Literature
Can you put streamline in a sentence with this definition:a teardrop line of contour offering the least possible resistance to a current of air, water, etc.
September 14, 2009

Poetry
Ok
September 13, 2009

Poetry
Thank you!
September 13, 2009

Poetry
Algebra is useful math. Lots of people enjoy it. Getting the hang of it is pretty hard. Everyone learns it sometime or another, But some are brave enough to show it off. Rapid fire algebraic equations are given to solve All but half the class get them right. does this make sense
September 13, 2009

Poetry
I need to write a poem with the word ALGEBRA but the only problem is that my teacher wants complete sentences with each letter instead of a word for a letter. Can you please help?
September 13, 2009

Math
How many 8 by 12 shelves can u get from a 36 by 56 piece of plywood
September 10, 2009

4th grade math
Identify one way outside of schoo in which you have seen #'s ordered.
September 9, 2009

math
The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. I am a prime number. What number am I?
September 8, 2009

Biochemistry
Explain in detail whether or not a single amino acid could be an effective antigen and how a single amino acid substitution could affect ligand binding?
September 4, 2009

Reading: Summary
This article is about a man named Dan Phillips who builds low income, but yet attractive housing out of salvaged items. He builds his houses in Huntsville, Texas. He is currently still building houses and he started in Huntsville, Texas. Dan Phillips uses materials such as ...
September 3, 2009

Reading: Summary
I used some of your suggestions and came up with this. This article is about a man named Dan Phillips who builds low income, but yet attractive housing out of salvaged items. He builds his houses in Huntsville, Texas. He is currently still building houses and he started in ...
September 3, 2009

Reading: Summary
Should I explain some of his customer reviews or describe the way he builds the houss or would that be redundant?
September 3, 2009

Reading: Summary
This article is about a man named Dan Phillips that builds low income, but yet attractive housing out of salvaged items. He builds his houses in Huntsville, Texas. He is currently still building houses and he started in Huntsville, Texas. Phillips started building houses to ...
September 3, 2009

Reading: Summary
Thanks i'll try that strategy
September 3, 2009

Reading: Summary
Can you help me summarize this article in 2 paragraphs? Ny times website ome mans trash please can you search it and help?
September 3, 2009

biochemstry
Look at biochem testbook. "Acetal CoA is a cental character in the cellular metabolism... [through which] all the energy sources (fats, proteins, and carbohydrates) are interconvertible". Acetyl CoA is the correct answer.
September 1, 2009

java programming
could someone help me create a source code that requires you to enter 2 numbers then gets the sum, difference, product and quotient of them after entering
July 7, 2009

Economics
Which of the following items contribute(s) to an increase in real GDP? (i) The cost of cleanup after a hurricane hits Florida (ii) The market value of burglar alarms purchased to reduce crime (iii) The additional health care costs associated with smoking (iv) The production of...
June 30, 2009

physics
a table exerts a 2.0 -newton force on a book lying on the table. how much force is exerted by the book on the table?
June 18, 2009

managerial economics
Price 1 is 50, price 2 is 38.78. Quantity 1 is 100, quantity 2 is 169. solve the price elasticity of demand. what if our goal is to decrease price by 14% what if our goal is to raise quantity from 169 to 300 by how much percentage we should decrease price? -2=%Q/P
June 16, 2009

economics
aztec enterprises depends heavily on advertising to sell its products. management at aztec is allowed to spend $2million monthly on advertising, but no more than this amount. each month, aztec spends exactly $2million on advertising. what is aztec's elasticity of demand ...
June 15, 2009

english/poetry
yfgqwdufgweufg
June 8, 2009

5th grade Science
Why does a multicellular organism need specialized cells and why their apperances are different?
June 6, 2009

Radioactivity
helium nuclei? positron/electron? photon? im not too shure.
June 2, 2009

calculus 2
f(x) = { 2 if x ! [0, 1) −1 if x = 1 3 if x ! (1, 2] −5 if x ! (2, 3) 20 if x = 3 } Prove that the function is Riemann integrable over [0, 4] and calculate its Riemann integral over [0, 4].
May 27, 2009

financial management
Callaghan Motors' bonds have 25 years remaining to maturity. Interest is paid annually, they have a $1,000 par value, the coupon interest rate is 12%, and the yield to maturity is 5%. What is the bond's current market price? Round your answer to the nearest cent.
May 27, 2009

Math, easy Q
Sorry, really messed up the wording
May 10, 2009

Math, easy Q
Does /-- ( Radical 7/10 ) = / 7 /-- ( Radical 70 over / - \/ 70 10 ) \ / 10 __ 10
May 10, 2009

help please
calculate A, B in this equation: 1000 A B sigma ai =( sigma ai) - (sigma ai) i=60 i=60 i=2
May 6, 2009

spanish
they asked you at what age she got married= caso
May 6, 2009

calc 2
Calculate A, B in the following equation: 1000 A B Ó ai = Ó ai - Ó ai I=60 i=2 i=2
May 6, 2009

codes and ciphers
i am trying to find the code example on the page:C=E D=G I=S K=C V=L Y=F
April 26, 2009

codes and ciphers
what is the type of cipher or code used on edhelper work sheets?
April 26, 2009

science
oh okay thank you
April 25, 2009

science
Stars by Cindy Grigg
April 25, 2009

science
but i dont have the complete story to finish it!
April 25, 2009

science
does anybody have an edhelper account i can use for my home work?
April 25, 2009

calculus
find the area of the region inside the circle r = 3sin(teta) and outside the cardioid r = 1 + sin(teta)
April 17, 2009

Help calculus 2
find the area of the region inside the circle r = 3sinè and outside the cardioid r = 1 + sinè
April 17, 2009

math
Determine whether the graphs of lines with the given Equations are Parallel, Perpendicular or neither. Eq#1 2X + 3Y = 4 and Eq#2 Y = - 2/3 X + 8
April 16, 2009

math
dont every curse at me again
April 14, 2009

math
I have to find the rule of each line can you help? 1.3,3.3,4.5,6.5,7.7,____,_____,_____ Rule:_______________________ 14.8,15,13.2,13.4,11.6,____,____,____ Rule:_______________________ 4.8,9.6,8.9,17.8,17.1,_____,______,_____ Rule:_______________________
April 14, 2009

Microeconomics
heya
April 5, 2009

8th Grade Science
At what temperature is water the most dense?
April 1, 2009

8th Grade Science
If we say that gold has a density of 19.32 g/ml, at what temperature is this substance?
April 1, 2009

French
Could you please check my answers thank you so much:) Use the verb pouvoir or vouloir Ah, je regrette, mais je ne ------- pas. À la télé, il y a ... Answer: Peux Si je comprends bien, tu ne ------ pas faire le dîner, parce que tu ------ regarder la t...
March 31, 2009

math
thx man
March 28, 2009

math
I know that (n+1)! = n!(n+1) but how would i solve the factorial: (2n+3)! thank you.
March 28, 2009

math
1296
March 19, 2009

math
what is the area of a square with a side of 36 in. ?
March 19, 2009

math
what is the formula for the area of a trapezoid? please include a diagram
March 19, 2009

algebra please help
how much of 12.5% of skylite red pigment needs to be mixed with 20% macintosh red pigment to get a 17% red pigment?
March 18, 2009

french
i need to unscramble these french words: chupket and mèrce. they are in the food catagory
March 17, 2009

math6
1/2, 3/8, 1/4, 0/2, 4/4, 7/8
March 10, 2009

need help math
Solve the problem. Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 11%. His total annual income from the two investments was $3990. How much was invested at 11%?
March 8, 2009

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