Monday

August 31, 2015
Total # Posts: 772

**Chemistry**

Calculate the mass of H2O produced by the decomposition of 2.21g of CuCO3 x Cu (OH)2. What happend to this water? This question is incredibly important and I am stuck on it, thank you very much for your help
*April 6, 2011*

**science**

what will happen to a can of coke if it was left in a car on a hot summer day?
*March 30, 2011*

**chemistry**

Consider the reaction HCl + NaOH ->NaCl + H2O Given: HCl Solution: 22 degrees celsius NaOH Solution: 22 degrees celsius Final Temperature: 26.1 degrees celsius A. Calculate the amount of heat evolved when 15 mL of 1.0 M HCl was mixed with 35 mL of 1.0 M NaOH B. Calculate ...
*March 28, 2011*

**Quantitative Analysis for business**

Key considerations as Allied develops its strategy for disposing of the case are the probabilities associated with John’s response to an Allied counteroffer of $400,000 and the probabilities associated with the three possible trial outcomes. John will accept a ...
*March 25, 2011*

**Quantitative Analysis for business**

Key considerations as Allied develops its strategy for disposing of the case are the probabilities associated with John’s response to an Allied counteroffer of $400,000 and the probabilities associated with the three possible trial outcomes. John will accept a ...
*March 25, 2011*

**math**

Michel wants to buy his mother handmade chocolates for Mothers Day. He has $15.oo to spend. The price of each chocolate is given below. Fudge $0.60 NutClusters $0.75 Truffles $0.80 Determine 4 possible combination where the total cost is 14.80 please help, and thankyou!!
*March 6, 2011*

**Algebra**

Bracelets You are making beaded bracelets for your friends. You want to use 30 beads for each bracelet and want to use no more than 145 beads. Write an inequality that models this situation. Can you make 4 bracelets?
*March 6, 2011*

**Algebra**

Go-Carts You and three of your friends are going to race go-carts. The last time you went, you had a coupon for $3 off each admission and paid $48 for the 4 admissions. What was the total price without the coupon? You pay the regular price this time and share it equally. How ...
*March 6, 2011*

**MATH**

If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample
*February 22, 2011*

**Math**

If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample
*February 22, 2011*

**Math**

Let A = {a, b, c}, & B= {1, 2} a) Determine A x B b) Determine B x A c) Does A x B = B x A? d) Does |A x B| = |B x A| ?
*February 22, 2011*

**math **

having troub;e
*February 6, 2011*

**math**

The sun rays cast a shadow I am 5ft 9in and I am standing in front of a flagpole what is the height of the flagpole?
*January 30, 2011*

**physics**

Water leaves the fireman's hose at rate of 7.2 kg/s and with a velocity of 21 m/s. Calculate the force exerted by the water jet on the wall of a building.
*January 26, 2011*

**physics**

Two blocks of masses m and M [M = 4.23m] are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass M moves ...
*January 23, 2011*

**Science**

what is the function of guard cells
*January 19, 2011*

**Madison school**

think about it this way: 78 is close to...80, right? ok, so what is 80 plus 85 approx?
*January 19, 2011*

**Science**

in a plant cell, btw
*January 19, 2011*

**Science**

What is the function of guard cells?
*January 19, 2011*

**banyan elementary**

7x12=?
*January 19, 2011*

**French**

Jour 9Matin : Vous prendrez le petit déjeuner á l´hôtel, ensuite vous irez á Nice, où á travers du Segway Tp, vous profiterez d´un grand tour á Nice. Vous visiterez le Musée Masséna, le Palais de la M&...
*January 13, 2011*

**French**

Jour 8 Vous prendrez le petit déjeuner á l´hôtel, après une visite est rendue au Musée de la Castre, au Musée de la Mer, á la Chapelle Bellini, á Église Anglicane et au Carnot Boulevard. Déjeuner sera ...
*January 13, 2011*

**French**

Vous visiterez l´île Santa Marguerite, après votre retour vous visiterez le Centre d´Art Maimason, la Notre Dame des Pins Église, le Parc Résidences Champfleuri, le Châteaux Vallombrosa, la Église Saint Georges et la É...
*January 13, 2011*

**French**

Dîner sera au restaurant Bâbord Tribord. Le soir se termine au Dadada Club. Jour 7 Après le petit déjeuner á l´hôtel nous allons passer la matinée entière á exploré la vieille ville de Cannes avec ses ...
*January 13, 2011*

**French**

Vous avez votre après midi libre jusqu´á 17 heures, quand vous regarderez les Allumeurs de Noel, juste après vous partirez á Cannes, où vous ferez le check-in au Cannes Beach Hôtel. Vous marcherez dans le Boulevard du Midi o&...
*January 13, 2011*

**French**

Le dîner sera pris au restaurant Pao Pao. La journée terminera avec la Messe de Minuit en Saint Raphael Jour 6 Petit déjeuner á l´hôtel, puis vous ferez la patinoire, lorsque que vous êtes fatiguées vous retournerez á ...
*January 13, 2011*

**French**

Vous explorerez la mythique ville de Fréjus avec son Amphithéâtre construit á la fin du premier siècle, le Aqueduc, la Lanterne d´Augustine qui est une vestige de l´ancien port romain, le Mémorial de l´Armée ...
*January 13, 2011*

**French**

Jour 5 -Le Petit déjeuner á l´hôtel, vous vous arrêterez au Nougat Cochet, qui est un chocolatier et où vous pouvez choisir les meilleurs chocolats, cacao et bien plus encore. Juste après vous regarderez Les Promenades en Cal&...
*January 13, 2011*

**French**

Pour décontracter vous avez un bon dîner au restaurant La Roulotte.
*January 13, 2011*

**French**

Votre journée terminera á St. Maxime avec L´arrivée du père Noel et la parade lumineuse, une visite au cœur de St Maxime avec son Simon-Loriére promenade et sa belle vue du Golfe de St. Tropez, sa Tour de Carriée, son &...
*January 13, 2011*

**French**

thank you so much... I really appreciate it, now here is the rest of it Vous allez marcher et explorer le vieux port qui est une des parties les plus charmantes de Saint Tropez avec une superbe vue et panorama de la côte, La Place aux Herbes, un jalon important oú...
*January 13, 2011*

**French**

ok this is all i got till now
*January 13, 2011*

**French**

jour 4 - Petit déjeuner vous sera donnée á l´hôtel, ensuite vous aurez une visite gourmande á Saint Raphael, où vous apprendrez les légendes et mythes de Saint Raphael. Après la visite vous pourrez apprécier ...
*January 13, 2011*

**French**

jour 3-Vous dînerez au restaurant La Brasserie et le reste de la nuit sera consacrée au Coco Club
*January 13, 2011*

**French**

jour 3-Vous visiterez la Rue Charles Gounod où il composé son opéra Romeo et Juliette, la villa Pierre Aublé un ami du Félix Martin qui á découvert son talent comme architecte par la construction de sa propre villa, La Place ...
*January 13, 2011*

**French**

It wont let me post the rest
*January 13, 2011*

**French**

Jour 3-Petit-déjeuner á l´hôtel, ensuite vous participerez á une promenade panoramer, où vous découvrirez L´ Esterel á cheval et où vous pourrez profiter d´une vue panoramique de l´Île d´...
*January 13, 2011*

**French**

Jour 2-Vous prendrez votre petit déjeuner á l´hôtel. Vous aurez le plaisir de participer á une aventure sous-marine prévue par Le Club Sous-marine L´eau. Déjeuner sera mangé au restaurant L´Arbousier.Vous irez ...
*January 13, 2011*

**French**

I have to post one day at a time, otherwise it wont let me jour 1-Aprés votre arrive á l´aéroport de Nice, vous prendrez le bus á Saint Raphael. Vous ferez le check- in á L´ Auberge Provençale, où vous logerez ...
*January 13, 2011*

**French**

I have a french itinerary that I have to present to the whole class.I was wondering if anybody would help me correct it. My French is not that good, and we will be graded on the mistakes we make..
*January 13, 2011*

**physics**

a bowling ball has a mass of 8kg. if it rolls down the alley, without slipping, at 7m/s, calculate a) the linear kinetic energy, b) the rotaional kinetic energy, c) the total kinetic engergy
*January 12, 2011*

**Physics**

How much work is done by a boy weighing 450. Newtons while carrying a 20.0 kilogram package up a 2.00 meter flight of stairs?
*January 2, 2011*

**Physics**

1. A 2,000 kilogram truck traveling at 60km/h strikes a tree and stops in 0.75 seconds. How large is the force that causes this to occur?
*January 2, 2011*

**PHY**

The kilogram snowboarder stands at the top of a slope that rises 27.14 meters above the valley floor. After sliding down the slope, (s)he glides up a 6 meter long jump that rises 3 meters above the valley floor. Calculate the snowboarder's speed at the top of the ramp if ...
*December 19, 2010*

**11th grade**

Calculate the minimum change in velocity (delta V or ∆V) required for the Space Shuttle to decrease its altitude to 60 miles if it’s orbiting with an apogee of 236 miles and a perigee of 215 miles above the surface of Earth. Use the rule of thumb that below an ...
*December 16, 2010*

**hum 176**

Choose a form of popular media that you are passionate about. The media may be music, a book, or a movie. · Write a thesis sentence stating how and why it is more than just a piece of entertainment. The thesis must include why it is a legitimate form of popular culture...
*December 13, 2010*

**physcis**

a particle moving at a velocity of 6 m/s in the positive x direction is given an acceleration of 3.9m/s^2 in the positive Y direction for 3.4s. what is the final speed of the particle? answer in units of m/s
*December 11, 2010*

**trig**

Okay, I understand how to get pi/8 but how do you figure pi/7 and how do you figure cos(10degrees) when you can use the sum and difference method of angles? Please help it is driving me crazy, and I have finals coming up. Need to get this down. Can I do the method about using ...
*December 9, 2010*

**algebra 1**

what is the commutative law to find equivalent expression of dc
*December 5, 2010*

**algerbra**

Use the graph, showing the yearly food costs of a family. What was the decrease in the cost of food from 2003 to 2004?
*November 27, 2010*

**chemistry**

calcium hydroxide is titrated with nitric acid.What volume of 0.0200 M calcium hydroxide is required to neutralize 35.00 ml of 0.0500 M nitric acid?
*November 24, 2010*

**MATH- grade 8**

Write an algerbraic expression to describe the pattern rule for the date in this table of valures. Term# Value 1 6 2 11 3 18 4 27 PLEASE explain how you got the answer... Thanks(=
*November 23, 2010*

**MATH - gr.8**

Write an algerbraic expression to describe the pattern rule for the date in this table of valures. Term# Value 1 6 2 11 3 18 4 27
*November 23, 2010*

**Chemistry**

If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?
*November 22, 2010*

**FP/101**

Which of the following is considered an advantage of home ownership? A. You are responsible for all repairs and maintenance. B. Interest paid on the mortgage of your home is tax deductible. C. Mortgage payments are always lower than rent payments. D. Profits on real estate are...
*November 21, 2010*

**physics**

a race car travels 22 m/s around a circular track of radius 142 m/ what is magnitude of the resultant force on the 1400 kg driver answer his car? answer in units of kN. the angle from the wheel to the horizontal is 32 degree..and u= .11
*November 21, 2010*

**Math**

let x be the father's age and y be the son's age.. x= 3times the age of son x=3y father's age{x) + son's age (y) = 44 now we have these x=3y x+y =44 substitute x with 3y for the 2nd equation so we now we have 3y+y=44 u can solve this from here. after getting ...
*November 21, 2010*

**physics**

an amusement park ride consists of a rotating circular platform 7.4 m in diameter from which 10 kg seats are suspended at the end of 1.81 m massless chains. when the system rotates, the chains make an angle of 26.6 degree with the vertical. the acceleration of gravity is 9.8 m...
*November 21, 2010*

**physics**

a 82.7 kg ice skater is moving at 5.88 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. she then moves in a circle of radius 0.627 m around the pole. the acceleration of gravity is 9.8 m/s^2. Find the force exerted by the rope on her arm.
*November 21, 2010*

**physics**

a dog sits 1.34m from the center of a merrygo round with an angular speed of 1.26rad/s. if the magnitude of the force that maintains the dog's circular motion is 43.8N, what is the dog's mass? answer in units of kg?
*November 20, 2010*

**Math 214**

Not sure my reasoning is correct. Here is the question: In a Nasa rocket firing, the probability of the siccess of the first stage is 95%, of the second stage 97% and of the third stage 98%. What is the probability of success for the three stage rocket? My reasoning: There are...
*November 5, 2010*

**math **

Ian multiplied a number by 5. He then multiplied that product by 2. What digit is in the ones place of the final product
*October 28, 2010*

**physics**

a runner in the starting blocks is it a potential energy or a kinetic energy?
*October 27, 2010*

**chemistry**

2. Predict the approximate amount of heat liberated by burning a gram of candle wax and a gram of propyl alcohol (Note: candle wax is a mixture of saturated carbon compounds with 20 or more carbons in each molecule and no oxygen. Propyl alcohol has the formula C3H7OH.) If time...
*October 19, 2010*

**finance**

A small chemicalcompany is negotiatimg a loan from Manhatten Bank and Trust. The small chemical company needs to borrow $500,000. The bank offers a rate of 8 1/4 % with a 20% compensating balance, or as an alternative 9 3/4% with additional fees of $5,500 to cover the ...
*October 15, 2010*

**Math**

76.50
*October 14, 2010*

**Math**

Total inerest for 30 months
*October 14, 2010*

**Math**

Calculate the simple interest on each amount the total amount at the end. A deposit of $2550.00 that earns 3% interest over 30 months. Pleas show your steps! Thankyou (:
*October 14, 2010*

**Maths**

3/8 into a decimal
*October 9, 2010*

**algebra**

use the intercepts to graph the equation x+2y=4
*September 28, 2010*

**physics**

a driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelarate uniformly to a stop in exactly 99m?
*September 23, 2010*

**Math**

A total of 8 058 044 651 Web pages were searched by Google by the end of 2004. Express this number in a scientific notation and in expanded form.
*September 23, 2010*

**math**

A total of 8 058 044 651 Web pages were searched by Google by the end of 2004. Express this number in a scientific notation and in expanded form.
*September 23, 2010*

**math**

Thankyou!
*September 23, 2010*

**math**

The total area of Canada is 9 984 670km2. Calculate the side length of a square with the same area. Show your work.
*September 23, 2010*

**sorting**

sorting the same set in different ways
*September 20, 2010*

**chemistry**

thanks
*September 19, 2010*

**chemistry**

What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag i got 74.08 is that correct?
*September 19, 2010*

**chem**

it is
*September 19, 2010*

**chem**

What is the percent composition of carbon in sodium carbonate (Na2CO3) Na2CO3 = 12/106 x 100 = 11.32% is this correct?
*September 19, 2010*

**chem**

What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper my final answer is 74.08 is this correct
*September 15, 2010*

**chem**

What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag
*September 15, 2010*

**chem**

Anhydrous aluminum oxide can be reduced to aluminum according to thisa chemical equation: 2 Al2O3 (s) ---> 4 Al (l) + 3 O2 (g) Calculate the mass of aluminum oxide reacted if 91.4 g of Al was produced and the percent yield was found to be 89.3%
*September 15, 2010*

**science**

sodium is attracts magnets
*September 14, 2010*

**MATH**

Given the GCF or LCM, what else do you know about each pair of numbers? a) Two numbers have GCF of 2. b) Two numbers have an LCM of 2. Please and thankyou!
*September 13, 2010*

**chem**

yes ion.
*September 5, 2010*

**chem**

How many electrons are in an atom of O2-.
*September 5, 2010*

**12th grade maths**

Alicia needs $2000 three years from now. How much should she deposit at the end of each year for the next 3 years in an account that pays 5% compounded annually?
*August 20, 2010*

**chemistry**

a. NaBr - nearly neutral b. K2SO3 - basic c. NH4NO2 - acidic d. Cr(NO3)3 - acidic
*July 4, 2010*

**math**

Car A is moving 48 km/h
*July 2, 2010*

**math**

oh okay... thank you very much!
*July 2, 2010*

**math**

can you please tell me how you got the answer? :)
*July 2, 2010*

**math**

Car B is 48km ahead of Car A. If Car Bis not moving and Car A is moving at 48km/h, how long will it take Car A to reach Car B?
*July 2, 2010*

**math**

Can you bisect a acute angle, right angle, or obtuse angle using each method: paper folding, a transparent mirror, and a compass and ruler? why or why not?
*May 18, 2010*

**CHEMISTRY**

2NO(g) + O2(g) --> 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) <-->* N2O2(g) (fast) (2) N2O2(g) + O2(g) --> 2NO2(g) (slow) Extra Info: This reaction is third order overall. NO ...
*April 25, 2010*

**Chemistry**

2NO(g) + O2(g) --> 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) <-->* N2O2(g) (fast) (2) N2O2(g) + O2(g) --> 2NO2(g) (slow) * indicates equilibrium arrows Thank you!
*April 24, 2010*

**CHEMISTRY**

thank you so much! no, I've been doing many questions on half cells and cell potential and I mindlessly forgot to assign oxidation numbers, just going by the sign of the element as you would with half cell questions. you're awesome help! thanks!
*April 22, 2010*

**CHEMISTRY**

Hello, I am trying to balance this redox reaction WITHOUT using the half-reaction method. Here is the unbalanced equation: MnO4 -(aq) + Zn(s)--> Mn 2+(aq) + Zn 2+(aq) It looks as if both elements are being oxidized. The answer is supposed to be: 2MnO4 -(aq) + 16H +(aq) + ...
*April 22, 2010*

**math**

calculate the surface area of each prism. length 9cm width 4cm hieght 8cm
*April 21, 2010*

**math**

how do you find the surface area and volume?
*April 21, 2010*