Sunday

May 1, 2016
Total # Posts: 256

**chemistry**

A chemist mixes 96.8 g of ammonia, NH3, with 188 L of O2 at STP. How many grams of NO will be produced? The balanced equation for this reaction is: 4NH3 +5O2 = 4NO + 6H2O
*March 18, 2016*

**Chemistry**

Given the balanced equation: H2 + Cl2 2 HCl , how many moles of HCl will be produced if 18.4 g H2 reacts with 127 g Cl2?
*March 18, 2016*

**Algebra **

the sum of two numbers is 38.the greater number is 8 more than the other number.find each number.use a system of linear equations to justify your answers.
*March 15, 2016*

**Fractions**

Kylee bought a pack of 12 cookies. One-third of the cookies peanut butter. How many of the cookies in he pack are peanut butter? (A) 9. (B) 6 (C) 4. (D) 3
*March 8, 2016*

**Social Studies**

I am doing this project where I have to write a dialogue where Andrew Jackson and Henry Clay are talking about there hopes and dreams for the future. Except when I look it up online, I get the same answers. I have done a lot of research, but can't figure out these ...
*February 19, 2016*

**MATHS**

village ABCD are such that B is 4km due east of A,C is 3km due south of B and D is 4km,550 degree west from C .calculate the distance and bearing of A from D.
*February 19, 2016*

**divinity**

examine the various ways in which the synopitic writter used their sources in writting the gospel material.
*February 11, 2016*

**maths**

the sum of 3 numbers is 81 the second number is twice the first and the third number is 6times more than the second. Find the number.
*February 1, 2016*

**Social Studies**

the same information keeps coming up* @Ms. Sue
*January 25, 2016*

**Social Studies**

same things*
*January 25, 2016*

**Social Studies**

Ms. Sue, I did google him, but the things keep coming up.
*January 25, 2016*

**Social Studies**

1. What were Andrew Jackson's hopes and dreams for the future? 2. How did Andrew Jackson work to change the United States? 3. How did Andrew Jackson react to key events happening in the United States? 4. Were there any key events in Andrew Jackson's life that helped ...
*January 25, 2016*

**Chemestry**

4 grams of barium bromate is reacted with titanium sulfate. how many grams of titanium sulfate would be needed to react with the calcium chlorate
*January 10, 2016*

**Health Plz Help Me!!**

i think it was false because there is lots of smoking that can cause caners
*January 6, 2016*

**Maths**

The top of a building 24cm high is observed from the top and from the bottom of a vertical tree. The angles of elevation are found to be 45degree and 60degree respectively . Find the height of the tree. ( leave your answer in surd form)
*January 1, 2016*

**Physics**

A ladder of length 10m and weight 200N leans against a smooth wall such that its at an angle of 60 degrees to the horizontal. A boy of weight 500N stands on d ladder at 2.5m of the way from the lower end of the ladder. Calculate the normal reaction at the wall and the ...
*December 30, 2015*

**Chemistry **

How do shape and symmetry influence the polarity of a molecule?
*December 20, 2015*

**Keithville**

Tori had 5/7 fossils as Tommy. Tommy gave 6 fossils to Tori so that they would each have the same amount .How many fossils did the two friends have altogether?
*December 8, 2015*

**Physics **

Using a ramp of length 2m, you apply a 150N force to move a 20kg object a vertical distance of 1m. How much work does gravity do on the object?
*November 28, 2015*

**Physics**

Using a ramp of length 2m, you apply a 150N force to move a 20kg object a vertical distance of . How much work does gravity do on the object?
*November 28, 2015*

**Physics**

Using a ramp length of 2m, you apply a 150N force to move a 20kg object a vertical distance of 1m. How much work did you do on the object?
*November 28, 2015*

**World history **

What influence did the patron have during the renaissance?
*November 10, 2015*

**World history **

What were the major artists during the renaissance? What was the name of their major art works?
*November 10, 2015*

**math**

The value of a car depreciate each year by 5% of its value at the beginning of that year . lf its value when new on first January 2000 was 10250, what was its value in January 2009, when it was 9 years old? give your answer, correct to three significant figures?
*October 28, 2015*

**Physics**

Why would a graph of force vs position not be uniform??
*October 24, 2015*

**Algebra 2 **

Consider the sequence that begins 40, 20, 10, 5, Will the values of the sequence ever become zero or negative? Explain
*October 23, 2015*

**Chemistry**

Ion flame test
*October 23, 2015*

**U.S. History**

The best online homework help site academicresearchpapers DOT org
*October 13, 2015*

**Chemistry**

Sorry, I didn't know it would post like that! I'll clear up the O.S. Pb = +2 NO3 = -1 Pb = +2 O = -2 N = +4 O = -2 O2 = 0
*October 13, 2015*

**Chemistry**

Is the decomposition of lead(ii)nitrate a redox reaction? Equation with O.S. underneath 2Pb(NO3)2 => 2PbO + 4NO2 + O2 +2 -1 +2-2 +4-2 0 I got all the o.s. but I am still confused as to whether or not this makes it a redox reaction. Do the individual elements in the nitrate ...
*October 13, 2015*

**Chemistry**

A water treatment plant adds fluoride ion to the water to the extent of 1.5mg F-/L H2O. a)What is the molarity of fluoride ion in this water? b)If the fluoride ion in the water is supplied by calcium fluoride, what mass of calcium fluoride is present in 1.00 x 10^6 L of this ...
*October 13, 2015*

**Chemistry**

What volume of 0.149 M HCl must be added to 1.00x10^2 mL of 0.285 M HCl so that the resulting solution has a molarity of 0.205 M? Assume that the volumes are additive.
*October 12, 2015*

**Chemistry**

Nitric acid, HNO3, is produced from ammonia and oxygen by the consecutive reactions: 4NH3 + 5O2 => 4NO3 + 6H2O 2NO + O2 => 2NO2 3NO2 + H2O => 2HNO3 + NO How many grams of nitric acid can be obtained from 1.00kg NH3 if NO in the third reaction is not recycled? Why is ...
*October 11, 2015*

**Chemistry**

Thank you so much!
*October 11, 2015*

**Chemistry**

Reaction: C6H11OH(l) ==> C6H10(l) + H2O(l) Calculate the mass of cyclohexanol (C6H11OH) needed to produce 45.0g cyclohexene (C6H10) by reaction if the reaction has a 86.2% yield and the cyclohexanol is 92.3% pure. Usually this problem would be fairly easy, but the purity is...
*October 11, 2015*

**Maths**

A rectangular floor measures 10m by 6m. A piece of rectangular carpet measuring 6m by 4m is placed in the middle of it. Calculate the area of the UNCOVERED floor.
*October 11, 2015*

**Maths**

A floor is measuring 8 metres by 6 metres is covered with carpet. If carpet costs $25.00 per square metres, calculate the cost of the carpet for the floor.
*October 11, 2015*

**Chemistry**

Thank you so much!
*October 10, 2015*

**Chemistry**

A particular vinegar contains 4.0% CH3COOH by mass. It reacts with sodium carbonate to produce sodium acetate, carbon dioxide, and water. How many grams of carbon dioxide are produced by the reaction of 5.00 mL of this vinegar with an excess of sodium carbonate? The density of...
*October 10, 2015*

**math**

Ashley had an equal number of dimes and quarters until she gave 15 quarters away. She now has $ 22.50 in dimes and quarters. How many dimes does she have?
*September 23, 2015*

**English**

8. A 9. i thought it was like about today and how we learn about it now, sorry. my answer is b ? 10. c
*September 21, 2015*

**English **

Check my answers please?? Match the litter of the author with his or her description. Not all letters will be used. A. William Bradford B. Captain John Smith C. Anne Bradstreet D. Okaudah Equiano E. Thomas Paine F. Thomas Jeffereson 1. I wrote an account of my voyage across ...
*September 21, 2015*

**Economics**

Economics is d father of all
*September 2, 2015*

**Physical Science**

A) the woman would see her image as far back as she goes as long as she stays focused in the center of the mirror. However, she couldn't see her image behind the mirror at all. B) Real image C) the image reflected is real
*August 25, 2015*

**Chemistry**

Starting with copper metal, describe how a sample crystals of copper 2 chloride may be prepared in the labaratory
*August 12, 2015*

**Chemistry**

Swirl the reaction mixture gently and pour a little at a time
*August 12, 2015*

**Chemistry**

Explain how you would obtain solid sodium carbonate from a mixture of lead carbonate and sodium carbonate powder
*August 12, 2015*

**Benue State University Makurdi**

Decrease
*August 5, 2015*

**Hlalukweni**

Will i be able to become a social worker or psycology if i do geography,life sciences,maths lit and consumer studies?
*July 2, 2015*

**english**

i actually dont have an idea on what to write
*June 27, 2015*

**english**

i was ask to writ some topic sentence on how to tame a wild tongue i actually need help
*June 27, 2015*

**math**

James get two point and Gina get one point is ti fair
*April 27, 2015*

**math**

the volume of a cylinder is 54cm cube.calculate the volume of the cone.
*April 27, 2015*

**Math**

In how many ways can a 15-question true-false exam be answered? (Note: No questions are taken away)
*April 23, 2015*

**thoten hight **

34556
*January 11, 2015*

**Algebra**

when writing linear equations, how do you determine which form of a line to use? choose 1 set of points from the choices below. then, solve the problem and post your solution, showing your steps. write an equation in point-slope form for the line that passes through one of the...
*December 9, 2014*

**math**

What do you do to find a rate?
*October 8, 2014*

**science**

How is a single replacement reaction different from a double replacement reaction? I am having trouble telling which on is which.
*October 8, 2014*

**Math**

What is the answer to the equation 85.3 - 23.58 = ?
*October 8, 2014*

**Math Homework**

Hi! I really need help with these. I tried them on my own but I got really confused. Thanks! 1.) If f(x)=1/x and g(x)=1/x^2, find the domain of g/f 2.) If h(x)=4/(5x+2)^2, find the two functions f and g so that f(g(x))=h(x).
*September 28, 2014*

**Math**

Pizza cost $1.50per slice. Use a table and an equation to represent the relationship between the number of slices of pizza bought and the total cost?
*September 23, 2014*

**Pre-Calculus**

Hi! I need help with these two. Here's the link for both pictures. 1.) Determine the intervals over which the function is increasing, decreasing, or constant. Write your answer in interval notation. Link for photo: file:///C:/Users/Cynthia/Downloads/Save.PNG 2.) Determine ...
*September 19, 2014*

**Math**

160,656 underlined is 1
*September 16, 2014*

**math**

draw a picture showing 4 pencils and a number of pens in which the ratio of pencils to pens is 2:3.
*June 3, 2014*

**math**

42
*May 7, 2014*

**Math**

A vendor at a concert sells new and used CDs. The new CDs cost 2.5 times as much as the old CDs. If 4 used CDs and 9 new CDs cost $159, what is the price of each item?
*April 9, 2014*

**Urgent Calc Help!!! Thanks!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = xe^((−x^2)/98), [−6, 14]
*April 1, 2014*

**World Geography**

Founded in 1967, ASEAN did little to foster economic cooperation until proposed a free-trade area in 1991
*March 23, 2014*

**S.S redo**

i followed this and got 66.7% :/
*March 12, 2014*

**physical science**

what is the velocity of ironman if he travels up 2,000 meters in 8.6 seconds
*February 11, 2014*

**english 4**

Harry's father is seattle's wealthiest citizen?
*December 20, 2013*

**Maths**

Find out X 25^x=1/^3square root 5 27^x+5=9^2x-1 8x16^x-1 =4^3x
*December 1, 2013*

**Physics**

Nevermind I got it.
*November 18, 2013*

**Physics**

An electromagnetic wave in a vacuum traveling in the +x direction generated by a variable source initially has a wavelength of 2.65 x 10^-4 m and a maximum electric field Emax in the +y direction of 8.20×10^−3 V/m. What are the coefficients in the equation for the ...
*November 18, 2013*

**Physics mechanics**

A piece of cord 2.5m is connected between two points 2m apart horizontally. A massless pulley is placed on the cord and a force 20N at angle - 80 degrees is applied to it. 1. Show that when the pulley reaches a state of rest, the angle that the positions of the cor make with ...
*November 3, 2013*

**Earth Science (Geography)**

In what way can the soils, geology and slopes affect river flow?
*October 28, 2013*

**Algebra**

Mary’s yard is a mess. She needs to hire someone to prune her trees and shrubs. A landscaping service she calls quotes her a price of $15 consultation fee plus $8 an hour for the actual work. Mary’s neighbor has offered to help her out. She doesn’t charge a ...
*October 23, 2013*

**algebra**

the printed matter on a 10 by 16 centimeter page of a book must cover 40 square centimeters. if all margins are to be the same width, how wide should they be?
*October 20, 2013*

**math**

Describe a method you can use to shorten the list of possible rational zeros when using the rational zero theorem? I know how to do the problems, I just don't know how to shorten that method. Please help me.
*October 17, 2013*

**science plz help right now!!!!**

is is a copy of a test
*October 17, 2013*

**Math**

what is 8x25x23 in mental math use subtraction
*October 3, 2013*

**Math**

Can I get some help with this question please? Calculating break-even. Jasmine Gonzales, administrative director of Small Imaging Center, has been asked by the practice members to see if it is feasible to add more staff to support the practice’s mammography service, which...
*August 11, 2013*

**Math**

Ned’s Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Ned’s decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the cash discount?
*May 25, 2013*

**math**

How would I figure out a random tile grid pattern for a room that is 25'1" in length and 12'7" in width with tile that is 16"x16" and 12"x12" with the majority being 12"x12"?
*May 10, 2013*

**math**

what is the ratio 7.5 to 3.25 in lowest term?
*May 3, 2013*

**life orientation**

Identify and describe 3 environmental health hazards that cause ill health,crises and disasters within any other community within south africa and globally
*May 1, 2013*

**physics**

a player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 28 m/s. what is the maximum height attained by the ball? Round the answer to the nearest tenth of a meter.
*April 9, 2013*

**Pre algebra**

Idk
*March 25, 2013*

**consumers math**

Jon put 1000$ into each of two different simple interest savings accounts for one year . The total intrerest earned was 5$. What could the interest rate have been for each account ?
*March 15, 2013*

**Chem**

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?
*March 13, 2013*

**Chemistry**

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?
*March 13, 2013*

**Science**

True
*March 12, 2013*

**math**

4 hours
*March 11, 2013*

**Math 6th grade**

I am having trouble with Input output for this problem, I can't figure out the function rule input x= output y= 2 1 3 0 4 -1 Please Help!
*February 25, 2013*

**Math**

Contruct a triangle RST in a way that TR=31 mm, RS=62 mm and angle STR=60 degrees....
*January 24, 2013*

**math**

look at the numbers below describe the pattern 75, 74,72,69,65, what is the next two numbers in the pattern
*January 8, 2013*

**Language**

Thank you so much Ms. Sue..
*November 15, 2012*

**Language**

For each sentence, underline the action verb in the parentheses that creates a more vivid picture. 1. We (sit, lounge) on the big chairs near the pool..I underlined lounge. 2. The horses (go, gallop) across the field. I underline gallop. 3. Minna and Max (gulp, eat) their ...
*November 15, 2012*

**French**

i need help with the answers ! i know one is j'ai mal aux yeux. i need help with the rest this is my last assignment until january.
*November 10, 2012*

**French **

In this assignment, you are going to say what part of the body hurts you after reading the sentence that is there. Ce devoir vaut 20 points. Tu as vu la télévision pendant 5 heures. Tu as mangé beaucoup de chocolats. Tu as bu beaucoup d'eau aprè...
*November 10, 2012*