# Show that the equation 3x^2 - x^3 + 3 = 0 can be rearranged to give: x = 3 + 3 ---- x^2 x^3 = Divide by ? = x = 3 + 3 ---- x^2 Using Xn+1 = 3

62,835 questions, page 354-
## writing

i need to write an essay for latin literature. It needs to show what are the similarities and differnces between roman writers and the media of today.it has to compare and contrast the latin writers and today's media including television,radio,the

*asked by gladys on January 7, 2011* -
## Chemistry

How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem. 2 Al (s) + 3 Fe(NO3)2 (aq) yields 3 Fe (s)

*asked by Tessa on May 21, 2014* -
## chemistry

How many grams of iron metal do you expect to be produced when 305 grams of a 75.5 percent by mass iron(II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem. 2 Al (s) + 3 Fe(NO3)2 (aq) 3 Fe (s) + 2

*asked by Anonymous on October 31, 2012* -
## need ideas for essay

The prompt is: Write about a time when you had to show respect for authority, even though it was difficult to do so. Feel free to draw on examples from books, movies, or television shows. Any ideas? Isn't this the time YOU (not I) had to respect authority?

*asked by Anonymous on October 12, 2006* -
## chemisry.Electrochemical Measurement of Concentrat

A calibration curve to show how the cell potential varies with [Cu2+] may be constructed. A plot of cell potential (in V, with the same sense as in question 1) versus log10[Cu2+] should yield a straight line. What is the slope of this line? The answer

*asked by Mahtab on April 9, 2012* -
## Maths

critical thinking: follow the steps below to find how many combined points were scored by Howie and Theo. write a number sentence to show how to solve the problem. points scored: Howie 272,Theo 325 and Isabel 288.

*asked by Little Flower on February 22, 2015* -
## math

At the county fair, the apple pies are lined up side-by-side for juding on a 6-foot table. Each pie has an area of 50.24 inches squated. How many pies are on the table? I don't understand how to solve this problem. Please explain and show me how

*asked by audrey on May 17, 2011* -
## Math

There's a question I've been having difficulty solving, and I would really appreciate if you can show he steps to how I can achieve the answer. QUESTION: The numbers 1, 4, 10, 20, and 35 are called tetrahedral numbers because they are related to a four

*asked by Sarah on July 27, 2015* -
## Math

Jackie has a babysitting business and works 4 days a week.She works 4 hours on Mondays afternoon , 3 hours on Tuesdays evenings, 5 hours on Fridays ,and 8 hours on Saturdays. She makes $16 an hour. How much money will Jackie have made after 6 weeks? Please

*asked by Gorge on January 14, 2013* -
## science

A steel wire is tied to two chairs and kept taut. 2 students sit one on each chair. A weight is attached to the long wire with help of a string and a pointer is attached to the weight to show the reading. What will happen to the arrow when candles are lit

*asked by pricilla on October 11, 2010* -
## Chemistry

Given the following equations, calculate the ΔH of reaction of ethylene gas (C2H4) with fluorine gas to make carbon tetrafluoride (CF4) gas and hydrogen fluoride gas. Show your work. H2 (g) + F2 (g) → 2HF (g) ΔH = –537 kJ C (s) + 2F2 (g) → CF4 (g)

*asked by student on April 18, 2019* -
## Math

I need help with this homework question: The dosage for a medication is 1/3 ounce for every 40 pounds of body weight. At this rate, how many ounces of medication should a physician prescribe for a patient who weighs 150 pounds? Write the answer as a

*asked by Lisa on November 10, 2008* -
## help me maths anyone

A vertical radio mast is supported by 3 equal wires.One end of each wire is fixed to the top of the mast and the other ends form an equilateral triangle on horizontal ground.If the length of each wire is twice the height of the mast,find the angle btw any

*asked by feliz on June 1, 2017* -
## Statistics

According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women

*asked by Katie on November 10, 2013* -
## Physic

The maximum speed of a mass attached to a spring is vmax = 0.438 m/s, while the maximum acceleration is 1.53 m/s2. What is the maximum displacement of the mass? (Answer: 0.125m) Answer is provided above. Please show all work on how to get the answer. Thank

*asked by Anonymous on May 22, 2014* -
## maths a

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better?

*asked by jay on September 11, 2014* -
## MATH HELPO!!!

Convert the map scale to a unit rate. How many inches represent one mile? Show your work. Interpret the meaning of the unit rate. 3/10 in. = 7/8 mi no map just need someone to solve this unit rate FASTLY

*asked by J-kid on February 4, 2017* -
## school of the nation

Marie gets $500 pocket money each day,she spends $300 each day. Write fractions to show the money spent and money left: (1) at the end of 1 day (2) at the end of 1 week

*asked by martin on October 13, 2015* -
## math , help,algebra

i am up to this point in my problem but i don't know what to do next with it can someone show me. Directions: Simplify by combining like terms x radical(18) minus 3radical(8x^2) these are the steps that i've done so far. = x radical (2*9) -3radical

*asked by jasmine20 on March 25, 2007* -
## physics

a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work.

*asked by leesa on February 22, 2008* -
## math

The value of an investment A (in dollars) after t years is given by the function A(t) = A0ekt . If it takes 10 years for an investment of $1,000 to triple, how many years will it take for the investment to be $9,000? Simplify your answer completely. I am

*asked by Melissa on March 10, 2017* -
## Chemistry

MnO2(s) -> MnO(s) + 1/2O2(g) Delta H1 = +32.5 kcal MnO2(s) + Mn(s) -> 2MnO(s) Delta H2 = -59.0 kcal Calculate Delta H final of MnO2 in KJ. The answer is not as important to me as the explanation. So, can someone please show me how to do this type of a

*asked by Lisa on April 26, 2010* -
## Geometry Part 2

A forest ranger spots a fire from a 28- foot tower.The angle of depression from the tower to the fire is 11.To the nearest foot,how far is the fire from the base of the tower?Show the steps you use to find the solution.

*asked by Karen on April 15, 2013* -
## calculus

solve the following inequality 15x-16 less than or equal to 15/x is the point x=0 included in the solution set of the inquality? are the other finite pointsa of the interval included in the solution set? what is the solution set? please show work

*asked by Heather on December 27, 2012* -
## chemistry

A fictitious element X is composed of 70.0 percent of the isotope X^45, 20.0 percent of the isotope X^ 46, and 10.0 percent of the isotope X^47. Calculate the weighted atomic mass of element X to the nearest tenth. pls show all work

*asked by PLEASE HELP on October 4, 2018* -
## chemistry

A 5 mL dose of Milk of Magnesia contains 400 mg of magnesium hydroxide. What mass in grams of HCl can it neutralize? Balanced equation= Mg(OH)sub2 + 2HCl---> MgClsub2(aq) + 2Hsub2O

*asked by Janette on February 14, 2011* -
## chemistry

2.00g of carbonate reacts with excess hydrobromic acid. Use this balanced equation to fond the theoretical yield. Na2Co3 + 2HBr = CO2 + H2O + 2NaBr

*asked by jane on August 16, 2016* -
## Chemistry

From my previous question about partial pressures in the equation 2H2(g)+O2(g)>2H2O(g), how can I use PV=nRT to find the number of moles in each of the reactants when I am not given the temperature, or the volume of the individual gases?

*asked by Heather on October 2, 2012* -
## Chemistry-Stoichiometry

A 1.146g mixture of the solid salts NaS)4 and PB(NO3)2 forms an aqueous solution with the precipitation of PbSO4. How would I write the molecular form of the equation for the reaction?

*asked by Edward on March 1, 2012* -
## physics

umm i need help...which equation would i use to solve the probnlem and how do i go about finding the answer? Here it is: Sam tosses a ball horizontally off a footbridge at 3.1 m/s. How much time passes after he releases it until its speed doubles?

*asked by tj on December 20, 2010* -
## chemistry 116

What is the specific heat capacity of aluminum if a 8.4 g sample increased 21.1 C upon the addition of 159.0 J? The units are J/(g ·K). q=cpxMxT is the equation my answer i got is 401.65 is that right bec i feel that's wrong

*asked by danny on January 29, 2015* -
## advance functions gr 12

2 QUICK QUESTIONS PLEASE HELP ME I NEED THEM FOR THE MORNING! the ______________ (fill in blank) of logarithms state that log (xy)= logx + logy solve the equation 6^3x+1= 2^2x-3, Leave in extact form THANKS

*asked by samantha on June 10, 2013* -
## Chemistry

The value of the equilibrium constant, Kc, at a certain temperature is 4.20 x 10-2. Would the reaction as represented by the chemical equation favor reactants or products? Enter Product or Reactant. PCl5(g) = PCl3(g)+Cl2(g)

*asked by Angel on February 27, 2010* -
## physics

A roller coaster ride includes a circular loop with radius R = 13.1 m. What minimum speed must the car have at the top to stay in contact with the tracks? Which equation is used here? I'm using a = v^2 / r and taking a = 9.8

*asked by A on October 25, 2009* -
## Trigonometry

Use a graph of the function to approximate the solution of the equation on the interval [−2π, 2π]. (List the solutions in increasing order from left to right on the x-axis. Round your answers to three decimal places.)

*asked by V on January 31, 2016* -
## chemistry

what volume of 0.1 moldm-3 HCL acid would be required to dissolve 2.3 grams of calcium carbonate equation CaCO3+2HCL----------=CaCl2+CO2+H20 (WATER)

*asked by aisha on September 25, 2011* -
## Science

When sodiun is placed in water,it reacts violent to produce hydrogen gas and form sodium hydroxide solution. write a balanced chemical equation for this reaction

*asked by Boren on February 10, 2017* -
## MAth help plz..

a rectangular prism has the 3 sides measuring x-1, x-1 and 2x+2 centimeters. Create a simplified equation to represent R, the ratio of the surface area to volume. State any logical restrictions on x.

*asked by welgie on January 20, 2013* -
## Accounting

Please describe how the following transactions affects the accounting equation: Provide service for cash Increase, decrease of no change from the following accounts Assets, Liability and Owners Equity

*asked by John on June 21, 2010* -
## physics

A packaging freight 1.45 m by 21.0 cm by 29.0 cm has a mass of 155 kilograms find the stress (in k p a) exerted by the crate on the floor in each of the 3 possible positions my problem is I don't know how to convert this equation into kPa

*asked by phyllis on October 1, 2014* -
## chemistry

Predict the prdeucts of the following acid/base and precipitation reactions and balance the equations. Remeber to indicate (s), (l) or (aq Q1. HCI(aq) + Mg(OH)2(aq)----> Q2. Pb(NO3)2(aq)+ Na2S (aq)---> Q3. write the ionic equation for question 2.

*asked by Kay on March 2, 2014* -
## Algebra

A projectile is launchedf rom ground level and its height can be modeled as functions of time by the equation h=40t-5t^2 What are the reasonable domain and range of this problem situation

*asked by Anonymous on December 10, 2016* -
## chemistry

A sample of 1.15g of lead (II) nitrate is mixed with 121mL of 0.104 M sodium sulfate solution. Part A Write the chemical equation for the reaction that occurs.

*asked by Cas on September 23, 2014* -
## Idontgetit

At 565 K the value of Kp for the equilibrium represented by the balanced equation is 2.00 x 10-1. Calculate the value of Kc at the same temperature. Express answer in scientific notation. PCl3(g)+Cl2(g) = PCl5(g) ____ x 10 _____

*asked by Chemistry on October 2, 2013* -
## chemistry

Write the reaction equation for Isopropylbenzene producing Benzene P.S I don't mean to be overburdening you with the same kinds of questions its just that there is a quiz on this stuff on Monday and I want to be FULLY prepared LOL

*asked by Priya on May 2, 2008* -
## algebra

jhon has $15 in his account for every week he works as a bag boy he earns $50 write an equation for the ammount of savings in his accountafter x amount of weeks.is this descrete or continuous?

*asked by vale on November 20, 2012* -
## CHEM AP

Complete and balance the following equation. MnO4^‾ (aq) + CH3OH(aq) ¨ Mn^2+(aq) + HCO2H(aq) (acidic solution) I KNOW ITS a redox, so i followed the steps and got: 4MnO4^- (aq) + 5CH3OH (aq) + 11H2O (l) + 12H^+ (aq) ¨ 4Mn^2+ (aq) + 5HCO2H (aq) can

*asked by komal on September 27, 2011* -
## chemistry

Balanced chemical equation, calculate how many moles of products would be prduced of 0.500 mole of the first reactant were to react completely. CO2 + 4H2 = CH4+ 2H2O

*asked by Anonymous on April 18, 2012* -
## chemistry

In a bunsen burner experiment, when you place a piece of soot covered chalk over the hottest part of the flame, it changes back to a white color. What is the equation for this process? Thank you

*asked by Samantha on October 10, 2012* -
## ***chemistry

Why is vinegar recommended for cleaning coffee pots, steam irons, and kitchen and bathroom faucets with white deposits on them? Why does it work, and what is the chemical equation for how it works?

*asked by samantha on November 3, 2010* -
## cheistry

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

*asked by savannah on November 17, 2011* -
## Chemistry

Calculate the mass of water formed by the complete reaction of 572 g of propane (C3H8) with excess oxygen. (Write a balanced equation.) Answer in units of g.

*asked by danny on April 9, 2015* -
## ALGREBRA

THE FASTEST MOVING INSECT IS THE LARGE TROPICAL COCHROACH. IT SCURRIES AT SPEEDS OF UP TO 2.3 FEET PER SECOND. NOW WRITE AN EQUATION THAT REPRESENTS HOW MANY MILES A ROACH CAN TRAVEL IN 1.5 HOURS

*asked by MARY on February 3, 2010* -
## chemistry

using the titration equation below calculate the number of moles of molecular iodine (I2) that must have reacted with the sodium thiosulfate I2(aq)+2S2O3^2-(aq) ---->S4O6^2-(aq)+2I-(aq) Can someone plz help me to figure this out with steps and explanation

*asked by Yul on November 16, 2011* -
## physics

What magnetic field is required to constrain an electron with a kinetic energy of 400eV to a circular path of radius .80m? (answer: 8.4x10^-5T) What equation(s) do I use? Any help is appreciated!

*asked by Anonymous on March 15, 2008* -
## chem

Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution?

*asked by pal on March 29, 2011* -
## Chemistry

Calculate the volume of 1.78M sulfuric acid that would be needed to neutralize 62.4 mL of a 2.09 M aqueous ammonia solution. The equation for the reaction is H2SO4(aq) + 2 NH3(aq) ---> 2 NH4(aq)+ SO4 ^-2 (aq)

*asked by Brea on April 16, 2012* -
## Chemistry

1. Use the following balanced net ionic equation to determine the volume of 6.0 M HNO3 needed to react completely with 5.00 g of copper. 8H+(aq) + 2NO3-(aq) + 3Cu(s) → 2NO(g) + 4H2O(l) + 3Cu2+(aq)

*asked by Maddie on October 23, 2015* -
## math

The school raised $1518.75 by charging an adult $3.75 and a student $2.50. The total attendance was 520. express each equation in slope-intercept form and graph each line ?

*asked by TJ on April 6, 2015* -
## Chemistry

If 17.14 grams of nitric acid are reacted with a large amount of aluminum metal, what volume of of hydrogen gas would be produced at STP? What would be the balanced equation for this problem?

*asked by Bradley on July 13, 2011* -
## math

if shelia invested $5000 in an account paying 3% annual interest. how many years will it take her money to double? write it in exponential equation and rewrite it in log form. please help

*asked by md on November 5, 2017* -
## Math

At 1 pm two trains, traveling toward each other leave from towns that are 312 km apart. One train averages at most 82km/h and the other at most 74km/h. What is the earliest possible time for them to meet? Please help me solve this. I'm not exactly sure how

*asked by Liana on September 23, 2010* -
## Math

A cup of coffee costs 80c less than a burger.Together they cost 220c. Use this information to form an equation and solve it. This question I can't get my head around. It's due in 2 days but I would like to get it done sooner. Thanks.

*asked by Zoe on January 9, 2013* -
## Chemistry (Equilibrium)

Given the reaction below 2NOBr(g) 2NO(g) + Br2(g) and the value of Kc = 1.98, at a temperature of 480 K what is the value of Kp ? (Hint: Use the value of R in the appropriate units.) I used the equation Kp=Kc(RT)^Delta N Then plugged in to get

*asked by Summer on December 9, 2011* -
## Circuits 2

A coil of 50 ohm resistance and of 150mH inductance is connected in parallel with a capacitor 50microF. The source voltage is 100 sin(wt+30). What is the equation line current.

*asked by Student on March 12, 2018* -
## Chemistry

write a balanced nuclear equation for the reaction that occurs when uranium-335 absorbs a neutron and undergoes fission to produce 3 neutrons, bromine-65 and another nucleus.

*asked by Leila on January 24, 2017* -
## chemistry

Write the balanced chemical equation for the Habor-Bosch process, that is, the combination of nitrogen and hydrogen to form ammonia, NH3. Phase symbols are optional.

*asked by lee on April 17, 2013* -
## chemistry

Calcium oxalate dihydrate is CaC2O4 2H20. Write the equation for the reaction which will occur when this hydrate is heated to a temperature slightly in excess of 100 degrees C.

*asked by michelle on January 26, 2010* -
## chemistry.

What amount (in moles) of FeS2(s) are required to produced 64g of SO2(g) according to the following equation? 4FeS2(s) + 110(g)_________2FeO3(s)__8SO2(g)...remember the first long bar is an arrow.

*asked by mary. on September 28, 2009* -
## Chemistry

Refer to the following equation: 4NH3 + 7O2= 4NO2 +6HO, How many moles of ammonia would be required to produce 11.9 mol of water? Can you please walk me through the steps on how to figure this problem?

*asked by Jessica on March 16, 2012* -
## algebra 1

please help. Write a linear equation in slope-intercept from to model the situation. A telephone company charges $28.75 per mont plus .10 cent a minute for long distance calls

*asked by kyle on December 20, 2012* -
## Chemistry

Help!!!!!!!!!!!! Fe + CuSO4 --> Cu + FeSO4 2.05g 7.00g 2.46g 151.8g Which reactant was limiting and how does this chemical equation support this? The numbers beneath the names are the masses in grams.

*asked by Megan on February 18, 2013* -
## precalculus

use the discriminant to determine whether the equation is a parabola, an ellipse, or a hyperbola. Then identify the angle of rotation required to eliminate the xy-term. x^2+4xy+y^2=1 5x^2-6xy+5y^2-8x+8y-8=0 9x^2+24xy+16y^2=25

*asked by JK on April 22, 2015* -
## managerial economics

The total costs of a firm under perfect competition is given by the equation TC = 5, 000 + 4Q + 2Q2 and the market price is $100 per unit. What is the profit maximizing level of output?

*asked by bernadette on November 19, 2009* -
## Chemistry

if NaCl is added to this equation: [Co(OH2)6]2+ + 4 Cl- + heat ->(supposed to be double arrow) [CoCl4]2- + 6 H2O would the equilibrium shift right or left? also same question for the addition of AgNO3.

*asked by L on April 15, 2009* -
## chem

Balance the skeletal equation for the synthesis of urea. (Enter 0 for any empty boxes. Use the lowest possible coefficients.) _NH3 + _CO2 ¨ _CO(NH2)2 + _H2O in the _ goes a number

*asked by hannah on November 22, 2010* -
## Thermochemistry

What volume of benzene (C6H6, d= 0.88g/ml, molar mass= 78.11g/mol) is required to produce 1.5x10^3 kJ of heat according to the following reaction? I just can't figure out what equation to use to solve this. Help, please?

*asked by Anon on October 17, 2016* -
## Chemistry

Zinc reacts with hydrochloric acid according to the reaction equation: Zn(s)+2HCl(aq)->ZnCl2(aq)+H2(g) How many milliliters of 4.50M HCl1(aq) are required to react with 8.25g of an ore containing 30.0% Zn(s) by mass?

*asked by Anna on October 7, 2012* -
## math

Using the equation representing the height of the firework (h = -16t2 + v0t + h0), algebraically determine the extreme value of f(t) by completing the square and finding the vertex. Interpret what the value represents in this situation.

*asked by jess on August 9, 2018* -
## master chemistry

The rate constant of a chemical equation has increased from 0.100s^-1 to 2.70s^-1 upon raising the temperature from 25C to 45C. Find the activation energy. So far I done 3.30=(Ea/8.314)(-2.11x10^-4)

*asked by Jay on February 6, 2016* -
## chem

Based on the ratio of mean moles of O2/mol KClO3 what is the chemical equation for the reaction that occurred? Why? Is this conclusion in accord with the mass of the solid product that you obtained? Explain

*asked by rachel on April 7, 2018* -
## chemisrty

what volume of hydrogen gas at STP can be produced by reacting 15.0 grams of uluminum with sulfuric acid? the equation is: 2Al+ 3H2SO4---> Al2(SO4)3+ 3H2

*asked by kim on March 29, 2012* -
## chemistry

Dr. Bob.. 630.24 kj was marked wrong...it said hint: make sure to carry out dimensional analysis........ ÄH value refers to the amounts of (moles) of substances and their matter in that specific equation. help....please....

*asked by patrick on October 13, 2015* -
## math

A trapezoid with an area of 48m2 has a height of 6m. One of its bases is 12m. Write and solve an equation to find the length of its other base. Also explain the work so I can understand when I do the test. Thanks

*asked by Adri on April 7, 2016* -
## Chemistry

Write the balanced net ionic equation. Label species as solids liquids gase aqueous. HNO3(aq) + Ba(OH)2(aq) ---> I don't understand the steps? And how to balance it?

*asked by Keith on July 24, 2011* -
## Physics Quick

Quick question because i am trying to complete a lab report. How can i find the linear tangential acceleration of a wheel as it is turned by two hanging masses by using Newton's Second Law and the equation ΣT=Iα?

*asked by Dib on December 2, 2014* -
## Algebra

In chemistry, n molecules of an ideal gas have pressure (P), volume (V), and temperature (T) that stand in the following relation, where R is a constant. PV = nRT If you solve for n what would be a good equation? I came up with n=PV/RT Some other choices

*asked by mary on April 26, 2011* -
## chem

What is the specific heat capacity of aluminum if a 8.4 g sample increased 21.1 C upon the addition of 159.0 J? The units are J/(g ·K). q=cpxMxT is the equation my answer i got is 401.65 is that right bec i feel that's wrong

*asked by danny on January 29, 2015* -
## algebra

b) The sales representative later indicates that there are two and one quarter as many homes available with the first floor plan than the second. Write an equation that illustrates this situation. Use the same variables you used in part a. Express the

*asked by jose on October 30, 2011* -
## chemistry

Calculate the mass of NO2 produced from the decomposition of copper nitrate if .462mol of oxygen are formed. The equation for the reaction is 2Cu(no3)2 - 2CuO + 4NO2 +O2

*asked by wendy on October 15, 2011* -
## Pre-Calculus 11

Two positive numbers x and 1-x add up to 1. Let the sum of their reciprocals be k. Find the only possible value of k such that x is a rational number. Hint: set up the equation and solve x with k in it. You'll encounter the quadratic formula in your

*asked by Shawn on September 14, 2016* -
## Chemistry

what is the balanced net ionic equation for the reaction of ascorbic acid with triiodide ion C6H8O6 ==> C6H6O6+ 2H^+ + 2e 2e + I3^- ==> 3I^- ==================== These are to two half equations. Add them and cancel the electrons.

*asked by mary on October 8, 2006* -
## Algebra 2

Soo the equation is 25y^2-9x^2-200y-36x+139=0 and for the center is got (2,4) and the vertices I got (2,7) and (2,1) But i cant figure out how to find the slopes of the asymptotes and it wants the answer is reduced fraction please explain

*asked by Nancy on May 13, 2012* -
## Chemistry

1) given the following equation : Na2O 2Hl__>2Nal H2O (501.6KJ) a) 1f 9g of Nal are formed by the process, how much heat(q)will be involved? b) state whether the reaction is endorthermicor exothermic

*asked by Shazra on February 5, 2013* -
## Physics

Quick question because i am trying to complete a lab report. How can i find the linear tangential acceleration of a wheel as it is turned by two hanging masses by using Newton's Second Law and the equation ΣT=Iα?

*asked by Dib on December 2, 2014* -
## Chemistry/physics

Calculate the final temp. of 100g of Ag at 40 C is immersed in 60.0g of water at 10.0 C. SH of Ag is 0.065 cal/g/C SH of H2O is 4.184 J/g/C I can't figure out how to put delta T in the equation when I haven't found it yet :-\

*asked by Natalie on September 26, 2010* -
## Solve Inequality

Solve the inequality. Express your solution using interval notation and please show all of your work. x(x + 6)(8 – x) >= 0 I need help, I guess I'm not understanding the interval notation portion. I know, that when 0

*asked by Armando on May 29, 2011* -
## 6th Grade Math

It takes 56 colored beads to make a necklace. The beads are strung in the following order: one blue, two yellow, two green, and one red. Then the pattern repeats, starting again with the one blue bead. If the first bead is blue, what is the color of the

*asked by fko on May 18, 2010* -
## pre calc

The population of a colony of mosquitoes grows exponentially according to the function P(t) = P0ekt 1. If there are 1,000 mosquitoes initially and there are 1800 after 1 day, what is the size of the colony after 3 days? 2. How long will it take the colony

*asked by robert on March 10, 2017* -
## math

taylor baked a cake to serve after dinner. suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. explain how they could have didided the pieces so that everyone ate the same amount of cake. you may show you work in a drawing.

*asked by renan on January 28, 2014*

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