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March 29, 2017

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Number of results: 28,251

physics
A ball hands on a string in the bus from the rear-view mirror. Once the driver hits the gas pedal, and while he accelerates, the ball no longer hangs straight down, but instead make an angle è of 15 degrees with respect to the vertical. How fast is the bus driver accelerating...
April 28, 2013 by NEW HERO :)

physics
1.00L piston with 1.00 mole of an ideal gas at 298.0K and 1.00bar is isothermally and reversibly compressed to a final volume of 0.200L, the irreversibly expanded in first step to its original volume with an applied pressure of 1.00bar. Calculate the change in heat for the ...
March 1, 2017 by Orbit

chem
How do these things shift the direction of a chemical reaction?: -adding/removing reactants -adding/removing products -adding/removing energy This is how I think I understand it: -adding more reactants pushes it to the right -removing reactants pushes it to the left -adding ...
March 17, 2007 by Mira

Chemistry
How many moles of carbon dioxide would be produced if 25 g of copper carbonate were completely decomposed by heating?
January 30, 2013 by Nina

Chemistry
Calculate the percentage yield if, on heating 50g of limestone(CaCO3), 21 g of lime(CaO) were obtained.
March 29, 2015 by Armaghan

allied school faiz pur campus
determine the time of evaporation of 250ml of water on heating
June 17, 2015 by Anonymous

Science
How much volume of co2gas is car obtained at NTP by heating 200gm calcium carbonate?
January 27, 2017 by Pallavi

CHEMISTRY
a concentration-time study of the gas phase reaction a 2A3 -> 3A2 produced the data in the table below. time [A3] (M) [A2] (M) 0 4.00 *10^-4 0 10 2.00 *10^-4 3.00 *10^-4 20 1.00 *10^-4 4.50 *10^-4 10 5.00 *10^-5 ? A) What is the concentration of A2 in the time interval 20-...
September 4, 2014 by chantel

lim
I'm completely drawing a blank on how to do this. A woman has $500,000 invested into two real estate properties. One yields an annual return on 12% and the other returns 15% per year on her investment. Her total annual return from the two investments is $64,500. If X ...
February 9, 2016 by Jess

math
Michael Reeves, an ice cream vendor, pays $17.50 for a five-gallon container of premium ice cream. From this quantity he sells 80 scoops at $0.90 per scoop. If he sold smaller scoops, he could sell 98 scoops from the same container; however, he could charge only $0.80 per ...
August 11, 2013 by trudy

Chemistry
To prepare 500.00 mL of 0.300 M buffer with a pH of 7.4. NaH2PO4/Na2HPO4 How many grams of each should be added to the 500.00mL flask to create this buffer?
September 8, 2015 by Josh

math
Check Your Understanding 1. Use the function y = 100(0.2)x to find the missing value in the table below. x y -2 2,500 -1 500 1 20 4 ? i don't understand how you find it
October 8, 2016 by HelpMe

Science
is a an airplane flies with a constant speed of 500 miles per hour how long will it take to travel a distance of 500 miles
October 19, 2016 by Mike

Algebra 2
I have no idea how to even start this, can someone kinda "point me in the right direction" so to speak. -Compute the time(t) it will take for a tool to fall to the ground when a worker drops from the top of the building. -Function:h(t)=-16t^2th0 where t is the time in seconds...
November 16, 2015 by Emma

Chem
What determines whether 2-bromobutane undergoes an Sn1 or an Sn2 reaction how would you favor SN2 formation?
November 17, 2008 by Jason

physics
Starting from rest a car undergoes a constant acceleration of 6 m/s2. How far will the car travel in the first second?
October 26, 2009 by Anonymous

physics
A 0.38-kg mass attached to a spring undergoes simple harmonic motion with a period of 0.63 s. What is the force constant of the spring?
November 18, 2010 by aok

chemistry
radium-266 may emit a photon of light with a frequency of 4.5x 10^19 s^-1 when it undergoes nuclear fission. what is the wavelength in pm of this photon?
November 7, 2011 by jj

Math
Figure undergoes a sequence of transformation that include dilutions. The figure and its final image are congruent explain how.
April 12, 2016 by Khan

Statistics Homework
Political Contributions: Listed below are contributions (in dollars) made to the two presidential candidates in a recent election. All contributions are from the same zip code as the author, and the data are from the Huffington Post. Do the contributions appear to favor either...
May 10, 2016 by Alexis

Organic Chemistry
I got some multiple choice questions to practice and I'm not sure of how to get the answers... 1). Which of the following corresponds to the COC bond angle in dimethyl ether?-94 degrees, 110degrees, 180 degrees, 122 degrees, or 60 (i think it's 110 2). classify the reaction ...
May 13, 2008 by Kate

science
If a reaction rate increases with temperature, how will the rate constant of the reaction change with temperature? A. The rate constant only changes upon addition of a catalyst to the reaction. B. The rate constant will decrease with temperature. C. The rate constant will not ...
August 25, 2016 by evelyn

chem
If a reaction rate increases with temperature, how will the rate constant of the reaction change with temperature? A. The rate constant only changes upon addition of a catalyst to the reaction. B. The rate constant will decrease with temperature. C. The rate constant will not ...
September 8, 2016 by jameson

algebra 2
by 10 there are 25 people admitted to a park by 11 there are 50 what would a slope of zero between 2 consecutive hours mean and can the line between 2 consecutive numbers have a negative slope
November 2, 2013 by hannah

CHEM ideal gas
hi i am working on trying to derive KE (or Etrans)=3/2nRT so i know these steps that ___________ pV= nRT and pV= 1/3 NmV2 and combining them, we get nRT= 1/3Nmv2 also, we know that for translational motion, KE= 1/2Nmv2 ______ i don't know how 2/3 (1 /2 Nmv2) = nRT where did ...
December 6, 2008 by Kimora

Math
Between 6 A.M and 10 A.M the temperature rose by 5F. Between 10 A.M and 2 P.M the temperature rose by 6F. Between 2 P.M and 6 P.M the temperature rose by 0C. Would you be able to tell how much the temperature rose since 6 A.M? Why or why not?
March 31, 2015 by Bun

CHEMISTRY...........
1. If 29.0 L of methane, CH4, undergoes complete combustion at 0.961 atm and 140°C, how many liters of each product would be present at the same temperature and pressure? My answer: (0.961 atm)(29.0 L) (413k) all divided by (413)(0.961 atm)=29.0 L CO2 29.0 L CO2 x 2LH2O/1LCO2...
October 11, 2013 by Anonymous

college algebra
I'm completely drawing a blank on how to do this. A woman has $500,000 invested into two real estate properties. One yields an annual return on 12% and the other returns 15% per year on her investment. Her total annual return from the two investments is $64,500. If X ...
February 9, 2016 by Jess

Science/Math
When is the Centigrade temperature third the Fahrenheit temperature? When the Fahrenheit temperature is???
January 30, 2011 by Mel

algebra
how many degrees the temperature T fell. The temperature at 5 P.M. is 20∘F. The temperature at 10 P.M. is −5∘F.
August 5, 2016 by khvkf

chemistry
Consider the titration of 100.0 mL of 0.500 M NH3 (Kb = 1.8 x 10-5) with 0.500 M HCl. At the stoichiometric point of this titration, the [H+] is:
June 10, 2012 by Anonymous

Math
Rosa poured 1 3/4 quarts of grape juice into a container. She added 3 1/3 quarts of apple juice. She then poured 2 2/3 quarts of the mixed juice into a pitcher. How many quarts of mixed juice were left in the container? Is the answer 1/3?
March 25, 2015 by Rose

math
Use symbolic Math symbolic representation: 1. You learn that for every 1,000 meters you rise in the atmosphere, the temperature drops by 6C. You have the idea that if you know the temperature at the base of a mountian and its height, you can figure out the temperature at the ...
September 9, 2010 by Kay

math
Assuming that the air temperature drops 6.5 Celsius degrees per 1000 m, compute the temperature at the tropopause if the sea-level air temperature is 15 °C and the altitude of the tropopause is 11 km. Answer: _____ °C (Round to the nearest tenth, do not include units.)
June 15, 2011 by Anonymous

8th Grade Math
The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C? Can you please check my answer? 4−2x&...
November 5, 2015 by Elise

English
I did the corrections myself. I included them in brackets. Can you see if they are correct? Thank you. 1)The subject of the poem is the description of some soldiers while they are retreating through (toward) their trenches. 2)They should be young and strong but, because of ...
April 27, 2011 by Henry1

chemistry
Calculate the energy that must be removed to convert substance X from a gas at 115°C to a solid -50.7°C. Assume X has a molar mass of 75.0 g/mol. Specific heat capacities ΔHvap 20. kJ/mol C(s) 3.0 J/g · °C ΔHfus 5.0 kJ/mol C(l) 2.5 J/g · °C bp 75°C C(g) 1.0 J/...
April 19, 2010 by Trish

chemistry
Calculate the energy that must be removed to convert substance X from a gas at 115°C to a solid -50.7°C. Assume X has a molar mass of 75.0 g/mol. Specific heat capacities ΔHvap 20. kJ/mol C(s) 3.0 J/g · °C ΔHfus 5.0 kJ/mol C(l) 2.5 J/g · °C bp 75°C C(g) 1.0 J/...
April 19, 2010 by Trish

chemistry
a process stream containing acetone vapour in nitrogen enters a cooler compressor at 65 degree celcius and 1 atm, with relative saturation of acetone equal to 50%. the gas is compressed and cooled to 20 degree celcius to recover 95% of acetone as a liquid. calculate the outlet...
March 17, 2011 by alicia

Science
Can someone help me answer some questions. Homes near warm climate get a) colder winters b)warmer winters c) cold and warm winters d) none of the above When there is moisture in the air from a hot shower, the water is in which form: a) solid b) liquid c) gas d) all of the above
May 3, 2014 by Anna

Science
I need help answering the questions below : Homes near warm climate get a) colder winters b)warmer winters c) cold and warm winters d) none of the above When there is moisture in the air from a hot shower, the water is in which form: a) solid b) liquid c) gas d) all of the above
May 3, 2014 by Annadona

Chemistry
A pure white solid material that looks like table salt releases gas when heated under certain conditions. There is no change in the appearance of the solid, but the reactivity of the material changes. Did a chemical or physical change occur? How do you know? Was the original ...
October 7, 2014 by Kelley

Chemistry
A.) Write a balanced chemical Eq'n for a reaction between MAGNESIUM & HYDROCHLORIC ACID. Answer: Magnesium + Hydrochloric Acid Mg (s) + 2 HCL (ag) ---- MgCl2 (aq) H2(g) B.) Assuming 7.00 g of Magnesium completely react according to the above Eq'N, calculate the MOLES of ...
December 18, 2016 by Jen

chem
For a double replacement reaction to occur, is it that one of the products must be insoluble and form a solid? There has to be some mechanism to remove the products from the reaction so that the reaction does not proceed in the reverse direction. Product needs to be removed: ...
March 19, 2007 by Amie

Chemistry AP
what does this mean (we are on quantum) The figure below represents part of the emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transmissions from excited states to the n = 3 state. the graph is like this A B !! ! ! ! ! ! ! ! ! ...
October 21, 2008 by Robin

Chemistry
A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound? Identify the geometry around each carbon atom. a)trigonal pyramidal b)bent c)...
November 17, 2012 by Nikki

Calculus
The average temperature T(x), in oF, in a small office building without air conditioning given by T(x) = 73 ¨C 14 cos (p (x ¨C 3.4))/12 where x is the time elapsed since midnight, 0 ¡Ü x ¡Ü 24. To cool the building, the air conditioning is turned on when the temperature ...
February 26, 2007 by C.Lopez

Algebra
Maybe that was to confusing...we have a data sheet to fill out - 2 questions with simple interest and 2 with compound interest. I just need the simple interest help: Prob. #1 Find the total amount if you deposit $500. at a rate of 5% for two years using simple interest. Year 1...
February 25, 2013 by Cassie

HEAT
A container holds a quantity of liquid nitrogen at a temperature of -200 degrees C. Explain how each of the following could be used to warm up the nitrogen. a)ice cubes b)hot water bath c)bubbling room air through the liquid All these substances contain a lot amount of thermal...
December 7, 2010 by Sydney

HEAT
A container holds a quantity of liquid nitrogen at a temperature of -200 degrees C. Explain how each of the following could be used to warm up the nitrogen. a)ice cubes b)hot water bath c)bubbling room air through the liquid All these substances contain a lot amount of thermal...
December 8, 2010 by Sydney

chemistry
A small storage tank for liquefied petroleum gas (LPG) appears to be spherical and have a diameter of about 1 ft.Suppose that some common volumes for LPG tanks are 1 gal, 2 gal,5 gal, and 10 gal. Which is the most probable voume of this particular tank?
May 25, 2009 by Zandria

Chemistry multiple choice
During today’s experiment we will produce hydrogen gas (H2) using zinc metal (Zn(s)) and hydrochloric acid (HCl). Which is a balanced net ionic equation illustrating this process? A. Zn (s) + 2 HCl (aq) --> Zn2+ (aq) + H2 (g) + 2 Cl- (aq) B. Zn (s) + 2 H+ (aq) --> Zn2...
December 1, 2010 by Nana

Chemistry
If mixing baking soda, (NaHCO3) with vinegar (CH3COOH) to generate carbonic acid (H2CO3), which breaks up into water and carbon dioxide gas) and sodium acetate (NaCH3COO), would the equation be: NaHCO3 + CH3COOH yields H2CO3 + NaCH3COO
February 3, 2011 by Pedro

Math
You want to estimate the mean amount spent by customers at a local gas station with 98% confidence and a margin of error of no more than $2. Preliminary data suggests that the standard dev. is $5.1 is a reasonable estimate for the standard dev. for all customers. How large a ...
February 19, 2011 by Leah

AP CHEM! PLEASE HELP
A sample consisting of various gases contains 2.6 10-6 mole fraction of radon. This gas at a total pressure of 37 atm is shaken with water at 30°C. Calculate the molar concentration of radon in the water. Can somepne please provide a step by step instruction?
December 12, 2011 by kanika

AP Chemistry
In a fit of boredom, a chemistry teaching assistant swallows a small piece of solid dry ice (CO2). The 8.9 g of dry ice are converted very quickly into gas at 311 K. Assuming the TA’s stomach has a volume of 1.5 L, what pressure is exerted on his stomach?
January 16, 2013 by Jose

Chemistry
The following is a Limiting Reactant problem: Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g)  Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? Show all ...
March 3, 2015 by Ciaria

Chemistry
Stelco has been recently legislated to reduce total SO2 emissions from iron smelting operations. Select the most effective chemical reagent to desulfurize Stelco’s gas emissions as a strategy to minimize the environmental impact of acid rain in eastern Canada and why? CCl4, ...
November 18, 2007 by Raj

chemistry
permanganate ion oxidizes hydrogen peroxide to oxygen gas and Mn2+ in acidic solution balance this equation: MnO4- + H2O2 yield Mn2+ + O2 this is what i got 16H+ + 2MnO4- + 5H2O2 yield 2Mn2+ + 8H2O + 5O2 + 10H+ all the atoms and charges are balanced but why did my professor ...
May 15, 2010 by bme1(check my answer)

Science
NEED HELP PLEASE THANK U U R NICE :) Describe how burning fossil fuels has created an imbalance in the carbon cycle. Most people drive cars and heat their homes with petroleum, coal, or natural gas. Why is it important to find alternatives for these sources of energy? What are...
April 19, 2013 by Cindy

chemistry
For a skydiver jumping out of a plane at an altitude of 1 km, what would be the concentration of oxygen in his (or her) blood knowing that air pressure at 1 km drops to 89,874 Pa? Assume ideal behavior of gases, normal breathing, 25 °C and constant air composition. Hint: ...
October 2, 2016 by carlos

physics
If you do 500J of work to elevate a bucket of water, what is its gravitational potential energy relative to its starting position? 500*10=5,000 5,000/500=10
March 13, 2015 by Lara

maths
The Number Two Plumbing Co. charges $45 per hour plus a fixed service call charge of $65. Write an equation that will allow you to compute the total bill for any number of hours, x, that it takes to complete a job. A. C = 45x + 65 B. C = 65x + 45 C. 65x + 45C = 0 D. 45x + 65C...
October 12, 2013 by mdan

Chemistry
Hi I need with with a prelab calculation for a Hydrate Crystal lab and I am so confused @_@ You don't really need to solve it if you don't want to, I just need an example on how to do these problems 1) Find the mass of the water that evaporated upon heating - Mass of crucible ...
October 11, 2012 by Sira

GPH111
The temperature controls to two locations on Earth. Discuss how the 5 factors influencing temperature patterns effect St. Louis, Missouri (38°39' N, 90°W; elevation 535 ft) and Singapore (1°24'N, 103°55'E; elevation 16ft). How does the latitude affect the temperature? Is ...
March 9, 2012 by Jazmyne

physics
a spring of spring length 5times 10 tothe power of 4 N/m,is between a rigid beam and the output piston of a hydraulic lever.an mpty container with negligable lengthsits on th input piston.the input piston has an area of Ai and the output piston has area 22.0Ai,initially spring...
May 24, 2012 by emitty

math
the temperature in Alaska dropped by -5.7 degrees every hour for 3.5 hours.if the temperature started at 23 degrees f,what temperature was it at the end of the 3.5 hours?
August 31, 2016 by Joud

chem
when water is added to solid calcium carbide, CaC2, acetylene gas, C2H2, and calcium hydroxide, Ca(OH)2 are produced. how many moles of acetylene are produced when 0.50 mole of calcium carbide reacts? can anyone explain this to me please
April 14, 2010 by herjaz

science-chemistry
A piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. The reaction formed hydrogen gas and iron chloride. How many moles of iron (II) chloride were formed? Don't forget the units.
January 4, 2011 by blah

chemistry
Aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas. What mass of hydrochloric acid reacts when 87.7 grams of aluminum dissolves? The equation is 2Al+6HCl=2AlCl3+3H2
January 31, 2012 by Kendall

science
Calculate the density of sulfur hexafluoride gas at 703 torr and 23°C. density is mass/volume so how do i get those from what i am given? also ) Calculate the molar mass of a vapor that has a density of 6.735 g/L at 11°C and 743 torr.
December 15, 2012 by Samantha

chemistry
when calcium carbonate, caco3(s) is heated, it decomposes to form calcium oxide, cao(s) and carbon dioxide gas. how many liters of carbon dioxide will be produced at stp if 2.38 kg of calcium carbonate reacts completely?
May 7, 2015 by Anonymous

science
fallow a drop o water through three states of matter. describe what is happening to the molecules as the water turns to gas than describe what is happening to the molecules when the water freezes into ice
March 4, 2008 by valerie

math214
Given three buildings A, B, and C, utility centers for electricity (E), gas (G), and water (W), determine whether it is possible to connect each of the three buildings to each of the three utility centers without crossing lines.
February 16, 2010 by alicia

chemistry
a chemist reacts 8.85g or iron with an excess oh hydrogen chloride to form hydrogen gas and iron(II)chloride.calculate the theoretical yield and the percentage yield of hydrogen if 0.27g H2 are collected
March 7, 2010 by sammy

chemistry 1
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction How many grams of calcium carbonate are needed to produce 49.0 of carbon dioxide at STP?
May 2, 2010 by safwan hakim

Chemistry
4.13 grams of magnesium chloride were recovered after the chemical reaction between magnesium and chlorine gas occurred. If 7.10 grams of magnesium chloride was suppose to be produced, what is the percent yield of magnesium chloride?
April 22, 2016 by Christian

Chemistry
I've worked through this problem so many times and I keep getting the same thing yet when I submit it, it says its wrong.. Am I missing something? Q:Calcium hydride (solid) reacts with water to form calcium hydroxide (aqueous) and hydrogen gas. Write a balanced chemical ...
February 16, 2016 by Chem: Troubleshooting

coding
what code are assigned for a patient admitted for chemotherapy for an azathioprione. I drug induced aplastic anemia? The patient has peripheral neuropathy of multiple joints of the lower extremities secondary to severe rheumatoid arthritis Code(s) with the POA indicatior
April 29, 2013 by help

Chemistry
On a warm summer day in Athens, the temperature is 33C (dry bulb temperature) and the relative humidity is 60%. What is the absolute humidity? (kg/kg Dry air) What is the humid volume of the air? (m^3 / kg Dry Air) What is the specific enthalpy of the air, taking H2O (L, 0C, ...
August 15, 2012 by Jacob

chemistry
calculate the heat energy required to raise the temperature of a 500. gram iron pipe from 25 degress celcius to 100 degrees celcius. the specific heat for iron is .45 J/g degrees celcius
May 12, 2013 by andrea

Gen College Chemistry
2AL+6H-->2AL+3H. What volume of hydrogen gas at STP would be evolved in a reaction of 36.0mg of 98% pure aluminum with the hydrogen being an ideal? I got the ml of hydrogen, but I don't know how to work it with AL being 98%pure.
October 22, 2008 by Christie

Physics (Please help!!!)
1) An ideal gas occupies a volume of 0.60 m^3 at 5atm and 400K. What volume does it occupy at 4.0atm and a temp of 200K? I know how to find the volume with the m^3 and the atm but it threw me off since it gives the 4.0 atm and the temp 200K.
February 4, 2010 by Hannah

Physics
A 1.8-g balloon is filled with helium gas. When a mass of 4.8 g is attached to the balloon, the combined mass hangs in static equilibrium in midair. Assuming that the balloon is spherical, what is its diameter? (The density of helium is 0.179 kg/m3, and the density of air is 1...
November 7, 2011 by mymi

a&p
In modern blimps, the gas of choice is used to inflate them is helium is safer. Compare and contrast the atomic structure of hydrogen and helium. What characteristics of the atomic structure of helium make it so much less reactive than hydrogen?
February 2, 2013 by tameka

chemistry
Aluminum fluoride, AlF3, exists as a gas at 1000 degrees C. (a) The Al-F bond energy is observed to be 659 kJ/mole. Calculate the Al-Al bond energy if the F-F bond energy 154.8 kJ/mol. Calculate the % ionic character of the Al-F bond.
March 25, 2013 by Chemq

SCIENCE
WHICH PROCESS PRODUCES MOST OXYGEN IN ATMOSPHERE PHOTOSYNTHESISI OR TRANSPIRATION WHICH GAS DOES PHOTOSYNTHESISI PRODUCE OXYGEN OR CARBON DIOXIDE GRAS--GRASSHOPPER-SNAKE-HAWK IF APART OF A FOOD WEB WOULD MORE MORE ARROWS POINT TOWARD OR AWAY FOR THE SECOND LEVEL CONSUMER WHY
October 28, 2009 by MYLES

biology
Zola has a splinter in her finger. which of the following actions should she take before she uses a sewing needle to remove the splinter?Give reasons for your answer. a- wipe the needle with a clean cloth. b- wash the needle in hot soapy water. c- pass the needle through a ...
November 9, 2009 by barbie

Chemistry (Aqueous Solutions)
This one stumped me alot... Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO4 2-, CO3 2-, PO4 3-, OH-, or S 2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This compund is __?__. a. Pb(...
April 5, 2010 by Macey

Chemistry
I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of ...
April 5, 2010 by Help please

chemistry
Can someone please explain why there are so many gas laws. I've been doing my homework with the appropriate formulas, but I'm confused why everyone keeps say that PV=nRT is so wonderful? You can't get the same solution by using this ONE formula, so what is so wonderful? Is ...
November 7, 2010 by Becky

chemistry
Suppose a sample of hydrogen gas is excited to the n=5 level. As the atoms return to the ground state (Balmer series), they emit light. a. How many lines are there in the spectrum? b. Draw an energy-level diagram indicating theses transitions. c. Calculate the three lowest-...
January 22, 2011 by Maria

College Chemistry
The equilibrium constant for the conversion of cis-stilbene to trans-stilbene is Kc = 24.0 at 200 C. If cis-stilbene is placed in an empty container at an initial concentration of 0.850 mol/L. What is the final concentration of trans-stilbene in the container at equilbrium? A ...
October 27, 2010 by Elleni

physics
A car traveling at 26 m/s undergoes a constant decleration of 12 m/s^2. About how long di=oes it take the car to come to a stop?
March 11, 2011 by Brittany

physics
A rocket of mass 100,000 kg undergoes an acceleration of 2 m/s2. Show that the net force acting on it is 200,000 N.
May 17, 2014 by Peg

physics
A car which is traveling at a velocity of 9.6 m/s undergoes an acceleration of 4.2 m/s2 over a distance of 450 m. How fast is it going after that acceleration?
July 31, 2014 by Auqib Ihsan

Physics
A car traveling at a velocity of 2m/s undergoes an acceleration of 4.5m/s2 over a distance of 340m.How fast will it be going after the acceleration?
October 29, 2015 by Sean

Chemistry
When its brakes are applied, a car moving at 10 m/s undergoes an acceleration of -1.2 m/s2. How far does the car travel before it comes to a stop?
January 15, 2016 by Autumn

science
Does hydrogen undergoes reduction or oxidation on the basis of oxidation number in 2NH3 +H2SO4 which gives (NH4)SO4
August 23, 2016 by reet

algebra
During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temperature of the machine part remain below 141°F. The temperature T in degrees Fahrenheit x minutes after the machine ...
December 18, 2013 by Helen

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