Monday

June 27, 2016
Total # Posts: 789

**Chemistry **

Nitrogen Dioxide , a pollutant in the atmosphere, can combine with water to form nitric acid. One of the possible reactions is shown here. Calculate delta ∆G° and Kp for this reaction at 25°C and comment on the spontaneity of the reaction. 3NO2(g)+H2O(l)--> 2 ...
*March 29, 2012*

**Fundementals in desktop publishing**

1: Which of the following are considered errors that should be counted? A. A word with incorrect spacing after it. B. A word with incorrect punctuation. C. An omitted word. D. All of the above. I choose : A.
*March 22, 2012*

**math**

To get a C in physics, a student must score an average of 70 on four tests. Scores on the first three tests were 63, 85, and 82. What is the lowest score the student can make on the last test and still get a C?
*March 19, 2012*

**Math**

I asked this question before sorry I I shouldn't ask it again. Express the following number in scientific notation: 23^941 How do i get the answer for this? on my graphing calc, i get an error overflow messasge when i try to compute it. what is the decimal number that ...
*March 11, 2012*

**Math**

what is the decimal number that comes before 10^1281? For example x.xxxx * 10^1281 How do i find out the decimal x.xxxx? Thanks For helping me!
*March 11, 2012*

**Math**

Express the following number in scientific notation: 23^941 How do i get the answer for this? on my graphing calc, i get an error overflow messasge when i try to compute it. THANK YOU!!!!!
*March 11, 2012*

**Math**

Mr. Rogers wants to fence in a rectangular garden next to a straight section of the Scioto River. He has 330 feet of fencing to do the entire job. He doesn’t need fencing along the river, and there is a 4.5 foot wide clearance for a gate at one end. What are the ...
*March 10, 2012*

**Math**

How many positions would be needed to represent 57^10,001 in ordinary decimal notation. Thanks!
*March 10, 2012*

**politics?**

what is gm bailout?
*February 22, 2012*

**politics**

what is the dont ask dont tell? and are there other related terms they use with this? thank you
*February 22, 2012*

**Decorative Features**

It's D, who wants a zipper in their under ware? I am getting most of the answers right. The one I can seem to understand because of how it is worded is #9. I have a learning disability and sometimes I can't process how a question is worded. I read the unit about ...
*February 14, 2012*

**algebra. help!!**

United States citizens living in Switzerland must pay taxes on their income to both the United States and to Switzerland. The United States tax is 28% of their taxable income after deducting the tax paid to Switzerland. The tax paid to Switzerland is 42% of their taxable ...
*February 14, 2012*

**Titration**

Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.
*January 23, 2012*

**science fair**

how do you make the following sentence in a if...ans then statement? if you multitask the result won't be as good as you not multitasking depending on what you multitask. thank you
*January 22, 2012*

**Writeacher**

Thank YOU!!!
*January 22, 2012*

**Writeacher**

Thank you soooo much. you have helped me so much since yesterday, i really appreciate it especially since you helped me removew my doubtings. Again thank you.
*January 22, 2012*

**science fair**

maybe making them pat thier head and rub their stomach or hear a lecture and draw while youre hearing it and then answer questions on it
*January 22, 2012*

**science fair**

maybe making them pat thier head and rub their stomach or hear a lecture and draw while youre hearing it and then answer questions on it
*January 22, 2012*

**science fair **

Writeacher, its me again i just wanted to know if the experiment of the math test and music is enough for the multitasking project or should i include another experiment to prove the hypothesis. thank you soo much.
*January 22, 2012*

**science fair**

okay remove the gum...check now, do you think this is enough for the science fair or should i add another experiment? btw You are the best thank you sooooo much for your help Writeacher
*January 21, 2012*

**science fair**

should i take out the gum all together, or will the gum add more thought?
*January 21, 2012*

**science fair**

music during homework chewing gum during a test i had an idea to make a group to take a test with music and gum. another with gum only and music only and then another group with nothing. and make each group go through each situation and see which situation actually helps. but ...
*January 21, 2012*

**science fair**

thank you and i am starting to have second decisions. do you think i should change my idea? im in 9th grade what do you think?
*January 21, 2012*

**science fair**

Does multitasking help a person or mess up all tasks?(referring to human reaction) is there any way to make this topic more complex and difficult?
*January 21, 2012*

**auditing**

<11{1[3(02)02]}> Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1)
*January 8, 2012*

**math**

Pranav reduced the size of a rectangle to a width of 7 inches. What is the new height if it was originally 49 inches wide and 28 inches tall?
*December 19, 2011*

**math**

There are 57 students in class of 6th and 7th graders. There are twice as many 6th graders. How many 6th graders?
*December 7, 2011*

**Inter. acct.**

You have been retained as a consultant by the company’s Audit Committee of the Board of Director’s, and asked to research three separate issues. First the typical acquisition costs associated with land purchases. Use the facts presented in Exercise 10-1 to illustrate...
*December 5, 2011*

**chemistry**

Ti(s)+2Cl2(s)-TiCl4(s) compute theoretical yield in moles 8 mol Ti, 8 mol Cl2
*November 25, 2011*

**chemistry**

For A pressure of 25.7 inHg would be how many kilopascals? I did the following, is this correct? 25.7 inHg X 25.4 mm/1in X 101.325 KaPa/760 mmHg = 87.0301 Kapa So: KaPa = 87.0
*November 24, 2011*

**chemistry**

A pressure of 25.7 inHg would be how many kilopascals? I received an answer but the person who helped me used mmHg. How do I convert inHg into mmHg to solve my questions. Help please
*November 24, 2011*

**chemistry**

For A pressure of 25.7 inHg would be how many kilopascals? This is the answer I received: 25.7 mmHg x (101.325 kPa/760.0 mmHg) The mmHg cancel each other out So 98.659 kPa My Question is I started out with inHg, and not mmHg. Would it be the same since I'm starting with ...
*November 24, 2011*

**chemistry**

Could someone please tell me how to solve this problem: A pressure of 25.7 inHg would be how many kilopascals? Could you please list the steps on solving it. Thanks
*November 24, 2011*

**chemistry**

how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? OK, I did the following: P₁ = 28.4 L P₂ = ? T&#...
*November 22, 2011*

**chemistry**

Question: how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? Could someone give me the setup for this? I know I ...
*November 22, 2011*

**chemistry**

A 28.4 L sample of methane gas is heated from 35.0 C to 76.0 C. The initial pressure of the gas is 1.00 atm at 35.0 C. Assuming constant volume, what is the final pressure of the gas
*November 20, 2011*

**physics**

Consider a roller coaster as it travels near the bottom of its track as sketched in the figure below. At this point, the normal force on the roller coaster is three times its weight. If the speed of the roller coaster is 27 m/s, what is the radius of curvature of the track? I ...
*November 1, 2011*

**physics**

In the figure below, m1 = 9.5 kg and m2 = 4.0 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30.
*October 30, 2011*

**4th grade math**

What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
*October 26, 2011*

**4th grade math**

What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
*October 26, 2011*

**social studies**

Tell your parents why you want to be drug free?
*October 25, 2011*

**english (parts of a sentence)**

Is (the worried lady) in the following sentence the subject or is it a adjective phrase? Gazing over her shoulder, the worried lady called for help. Can (my computer problem)in the following sentence be considered a dependent clause? If not could you explain what it is? Thanks...
*October 21, 2011*

**science**

what you could see at fire station?
*October 13, 2011*

**social studies**

why would 'STOP,DROP and ROLL' be effective to put out a fire?
*October 11, 2011*

**science project**

abbreviation for HOT
*October 5, 2011*

**Science**

6 m/s
*October 2, 2011*

**science**

what we can made out of trees?
*September 27, 2011*

**Physics**

Why would this happen? Aren't the vertical and horizontal components independent of each other thus making the swimmer swimming perpendicular to the shore arrive first at the opposite shore since the vertical component is the largest of the three other swimmers. That's...
*September 21, 2011*

**social studies**

how johnny chapman becomes johnny appleseed
*September 21, 2011*

**6th grade math**

16
*September 18, 2011*

**Chemistry**

If I have a bottle containing 12 ozs (355mls)and the alcohol is 48% by volume, how many mls of alcohol arer in the solution?
*September 17, 2011*

**social studies**

what are needs in our community?what are wants in our community?
*September 14, 2011*

**science**

what we made out of trees?
*September 12, 2011*

**social studies**

what are needs in your home?what are wants in your home?
*September 12, 2011*

**social study**

the answer is; 3
*September 10, 2011*

**chem**

why is cellulose a tough material? why does cellulose need to be so tough? please help
*September 8, 2011*

**math**

Please help me! f(x)=(x+1)^3-2 1. How do I find the x and y intercepts, if any? 2. Describe the long term behavior of this function. Give the power function that F resembles.
*August 30, 2011*

**englissh**

I Think 16.c (DLL will not directly Communicates with PC's hardware) 17.d 18.c 19.c 20.d plz check it
*August 28, 2011*

**chemistry**

It would be difficult to separate Francium from ores. Francium is on the bottom left of the periodic table, therefore it loses electrons easily making it very difficult to give it the electrons necessary to separate it from ores
*August 25, 2011*

**chemistry**

#1)hydrochloric acid is a relatively strong acid . imagine that HCl is added to a buffer solution containing the weak acid phosphoric acid and a salt a)will HCl react with weak acid (H3PO4), or will it react with the salt (Na2HPO4)? b)one product of this reaction will be a new...
*August 23, 2011*

**history**

what were some social, political, and economic changes resulting from the hundred years war? And how did the war begin?
*August 17, 2011*

**theology**

if there is 4 of something and it is called: "Quadruple" What is the name given to 13 of something; like 4 babies are called: Quadruplets, what are 13 babies called?
*August 15, 2011*

**Math**

How would you do the inverse of this function: -1/7sqrt(16-x^2)? -I know you switch the x and y and solve for y. I keep on getting a weird answer. Help!
*August 10, 2011*

**MATH**

SIMPLIFY: 2+3x10/5x3-9=???
*July 15, 2011*

**MATH **

18 INCHES
*July 15, 2011*

**MATH **

FIND A PERIMETER OF A TRIANGLE WHERE ONE SIDE IS 2 INCHES, ONE SIDE IS 6 INCHES, ANOTHER SIDE IS 10 INCHES???
*July 15, 2011*

**MATH **

FIND THE AREA OF A TRIANGLE IF THE BASE (b) IS 9 INCHES AND THE HEIGHT (h) IS = 12 INCHES???
*July 15, 2011*

**MATH**

IT ONLY SAYS TO SIMPLIFY
*July 15, 2011*

**MATH**

BUT THERE IS NO PARENTHESES MS.?? I'M STUCK
*July 15, 2011*

**MATH**

2+3x10 DIVIDED BY 5x3-9= ????
*July 15, 2011*

**Med terms**

Dailys= Days
*July 12, 2011*

**chemistry**

which of the following is reduced in the reaction: Cu(NO3)2 + Zn --- Zn(NO3)2 + Cu
*July 11, 2011*

**chemistry**

Consider the reaction, C2H4 (g) + H2 (g)- C2H6 (g) where -137kJ of heat is released. How many kilojoules are released when 55.3g of C2H4 reacts?
*July 10, 2011*

**science**

what scientic evidence would you need to seettle the claim that famines are caused more by human than enviromental
*July 4, 2011*

**Chemistry**

A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and 0.200 mol of CH3COONa in 1.00 L of water. 1.00 mL of 10.0 M HCl is added to a 100 mL portion of this solution. What is the final pH of the resulting solution? Ka of CH3COOH = 1.8 x 10¯5
*June 26, 2011*

**Business Math**

Cassandra is repaying an installment loan of $3,500 with 20 equal monthly payments of $196 each. what is the annual percentage rate of the loan?
*June 19, 2011*

**Mathematics for business and Finance**

The Patel family recently purchased a home, taking out a mortgage of $235,000 at 8 1/2% for 25 years. Excluding taxes and insurance, what is the monthly PITI payment of their loan?
*May 27, 2011*

**Chemistry**

HC2H3O2 + CH3(CH2)4OH (H2SO4)=?
*May 8, 2011*

**Physical science**

how can i calculate the number of: 1.molecules in 30g water.2.atoms in 50 dm^3 nitrogen gas.3.nucleons in 10 cm^3 flourine gas?
*May 7, 2011*

**Math(Probability)**

Let X and Y equal the outcomes when two fair six-sided dice are rolled. Let W = X + Y. Assuming independence, find the p.m.f. of W when (a) The first die has three faces numbered 0 and three faces numbered 2, and the second die has its faces numbered 0, 1, 4, 5, 8, and 9. (b...
*April 27, 2011*

**please help` ORGANIC**

synthesize olivetol from benzene
*April 27, 2011*

**science**

how do you make 5-Pentyl-1,3-benzenediol from just benzene? 1.Benzene + Br2 +FeBr3-->Benzene-Br??
*April 26, 2011*

**Physics**

15 cm in front
*April 25, 2011*

**HSM 220 Week 6 Budget Matrix**

Yes you are absolutely correct!
*April 20, 2011*

**Environmental Science**

I have been studying for several hours and am having problems with finding the answer to this question. Can anyone help please? Conservationists argue that watershed protection and other ecological functions of forget are more economically valuable than timber. Timber ...
*April 18, 2011*

**math/algebra**

please show me the mathimatical equation so I can set this up properly: The area of a rectangular patio is 54 sq ft. Find the length and width of the patio (Hint: A=lw)
*April 14, 2011*

**physics**

if you have an element that starts out at 40g and has a half-life of 10 days, you keep it for 30 days- how much doe you end up with? .
*April 7, 2011*

**AP Calculus**

integrate |sint(t^2)| dt with 0<t<3
*April 6, 2011*

**math**

A gun is fired from a bunker of 2m deep with an initial velocity of 500m/s at an angle of pi/6 a) Find the parametric equations of the position of the projectile b) Find the range of the projectile to the nearest meter. c) Find the maximum height of the projectile to the ...
*March 17, 2011*

**statistics**

A 99% confidence interval for population variance is being formulated based on a sample of 16 observations. What are appropriate values for X^2
*March 13, 2011*

**Maths - check please**

if boston is 14 feet above sea level and the ice cap is 680,000 cubic miles of water what impact would boston have?
*March 13, 2011*

**AP Calculus**

An object moves along the x-axis with a velocity of v(t) = sin(pi/3)t for time t greater than or equal to 0. What is the total distance traveled by the object over the time interval 0 less than or equal to t less than or equal to 4?
*March 9, 2011*

**Geometry**

The vertices of ∆GHJ are G(-2,3), and J(1,3). If ∆KLM ≅ ∆GHJ, fing LM.
*March 8, 2011*

**geometry**

what is true about the slopes of two perpendicular lines niether of which is vertical?
*March 8, 2011*

**geometry**

If a triangle side lengths of 12 cm, 35 cm, and 37 cm, what type of angle is it?
*March 8, 2011*

**Bio Medical Science**

What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
*February 26, 2011*

**Social Studies**

What are the differences and similarities of the social structure and family values of persons from Bosnia and persons from Poland?
*February 25, 2011*

**physical science**

A student is traveling in a car with a constant velocity has a kinetic energy 1.0 x 10^4 J. What is the speedometer reading of the car in km/h.
*February 20, 2011*

**trig**

From two points each on the opposite sides of a river,the angles of elevations of the top of an 80ft. tree are 60 degree & 30 degree.the points & the tree are in the same straight line,which is perpendicular to the river.how wide is the river?
*February 17, 2011*