Posts by LILY
Total # Posts: 1,623

chem
a mixture of 50g of S & 1x10^2g of Cl2 reacts completely to form S2Cl2 &SCl2. Find the mass of S2Cl2 formed. (ans:20.2g) i need the calculation work bcus i got diff. from the ans which is 70.2g. 
geometry
i think that the 31 and 49 are the angle measures and the NW and SW are just what direction its pointed toward :) 
phy
Pulling up on a rope, you lift a 4.05 kg bucket of water from a well with an acceleration of 2.50 m/s^2. 1What is the tension in the rope? 
phy
A force of magnitude 7.50 N pushes three boxes with masses m_1 = 1.30 kg,m_2 = 3.20 kg, and m_3 = 4.90 kg .The mass is side by side. 1Find the magnitude of the contact force between boxes 1 and 2, and 2Find the magnitude of the contact force between boxes 2 and 3. 
phy
A majorleague catcher gloves a 92 mi/h pitch and brings it to rest in 0.15 m. 1If the force exerted by the catcher is 803 N, what is the mass of the ball? 
Chemistry 2
I have to calculate the Ccal using the following info: Initial Temp of water outside calorimeter=22.6 C Initial Temp of water inside the calorimeter= 100 C Volume of water in calorimeter= 50mL Volume of water outside calorimeter= 300mL Final Temp of water in calorimeter=27.9 C... 
Algebra
earned 1000 in 2 mutual funds. one earned 5% profit and the other 2% profit. total profit was $29 how much invested in each mutual fund 
Chem balancing equation
C5H602+O2 > CO2+H2O what is the coefficient of O2? 
english
Like the popular belief that older adults do poorer in schools than their younger counterparts, the midlife crisis 
World History
Thank you 
World History
Who was an English philosopher who believed all people have natural rights? My best guess is John Locke. 
Math
Lower and upper confidence interval estimate ahead of two months for cod catch (no trend in cod catch but it is changing slowly) for smoothing constant á=0.225 was found 300 and 477.12 tons. If the estimate of ó2 from the monthly catch of two years is s2=900. The... 
math
How can I find the length of a right triangles leg? 
Religious Studies
From an academic perspective, when does the Job text first emerge in history? 
Religious Studies
1. What is “the problem of evil,” and why is it particularly problematic for Western, monotheistic religious traditions? 
World History
Thanks for the link! 
World History
One cause of the Peloponnesian War was a. invasion of Athens by the Persians. b. invasion of Crete by the Mycenaens. c. conflict over control of the Delian League. d. economic and commercial rivalries among the citystates. D? 
World History
The Peloponnesian War began, in part, because of a. economic rivalries among Greek citystates. b. threats of invasion by the Mycenaens. c. alliances formed among Sparta, Persia, and Crete. d. arguments over control of the Delian League. A? 
Chemistry
1000.0 
chemistry can you check my answers?
So for a and d are you saying there is no effect? 
chemistry can you check my answers?
can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) > C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no effect Answer: ... 
MATH URGENT!!!!!!!!!
SIMPLIFY: s^2+4s4 SIMPLIFY: x^24x3 
MATH URGENT!
thanks 
MATH URGENT!
Madison is standing on the roof of a building that is 350 feet above the floor. She throws a ball straight up with a velocity of 20 feet per second. How long will the ball be in the air before it hits the ground? 
math urgent!
Tyler is on the 15th floor of a building. She throws a ball straight down from the window, which is 220 feet above the ground. How fast must she throw the ball(in feet per second) for it to hit the ground in 3 seconds? 
math
So, its 3000grams, because 500g+500g=1000g and 1000g+1000g=2000g and 1000+2000=300grams 
math
1 kg = 1000 g So, 1000+500=1500 grams 
Math 8th Grade
Jane's garden is in the shape of a right triangle. One leg of the right triangle is longer than the other leg. The area of the garden is 63 square meters. What is the length of the longer leg? 
Math
Jane's garden is in the shape of a right triangle. One leg of the right triangle is longer than the other leg. The area of the garden is 63 square meters. What is the length of the longer leg? 
math
5 combos you idiot 
Math
=10c+c^24c =c^2+6c 
MathProportions
Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck 
Math
10^8 comes out to be a fraction so its smallest 10^6 is next, also a fraction anything^0=1, so 10^0=1 then they just keep going up, so its 10^5 and 10^9 
math
a square with perimeter 5 less then the area. perimeter and area equal 45 
Physics
Find the speed at which Superman (mass=88.0 kg) must fly into a train (mass = 17998 kg) traveling at 60.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers. Calculate the minimum time Superman must take to stop the train, if... 
Health
Thanks again! 
Health
Smoking marijuana over a long period of time can cause a. chronic bronchitis and damaged lung tissue. b. Alzheimer's Disease. c. tongue cancer. d. all of the above. D? 
Health
Thank you! 
Health
Indirect pressure is a. a strategy to avoid doing something you don't want to do. b. being swayed to do something because people you look up to are doing it. c. someone trying to convince you to do something you normally wouldn't do. d. none of the above. B? 
science
A 3.00 flask is filled with gaseous ammonia, . The gas pressure measured at 28.0 is 1.25 . Assuming ideal gas behavior, how many grams of ammonia are in the flask? 
physics
2Tsin16.9=mg=0 2Tsin16.9=mg T=mg/2sin16.9 T=54(9.8)/2sin16.9 T=529.2/sin16.9 T=529.2/.581 T=912 
physics
a ball dropped from a window strikes the ground 2.99s later. how high is the window? 
geometry
given constant perimeter (people),Irene made a rectangle with an area (tables) of 196 sq. units. she finds that this is the largest area (greatest number of tables) possible for the given perimeter. Irene drew a rectangle with an area of 196 sq. units. she finds that this i ... 
geometry
A parallelogram has sides of length 3 and 5 and a diagonal length 10. is the quadrilateral a rectangle? please explain 
politics
Which president closed the tunnel between his country and palestine? The tunnel was a secret passage way in which the palestinies got food and other helpful sources. 
politics
what are some famous dictators that were either removed or killed and what did they do? 
Politics
Why was it necessary to remove Hosni Mubarak as the president of Egypt? 
math?
9/54 ito percent 
math?
39/40 ino percent 
math?
4/11 into a prcnt 
chemistry
H2 (g) is made when 8.5 grams of Li is placed in water. The reaction also creates Lithium Hydroxide. Li + H2O > LiOH + H2 How much H2 (g) is made? (the (g) means gas!) 
Chemistry
How many moles of ethanol is contained in 250.0 ml of a 1.90M ethanol solution? A. none of these B. 7.60 C. 475 D. 0.475 
Math
64ounces 
English
If I wanted to sayThis is Jos's backpack. Would the comma go between the s's as I have included, or would there just be a comma after the s? 
math
jada baked 4 trays of cookies with a dozen on each tray. she and her brother ate 6 of the cookies while they were still warm. otis baked 4 trays of cookies . he started with one dozen on each tray then his mom removed 6 cookies from each tray to send to otis's grandmother ... 
reading
what are parts of a poem? 
math please help
temperature before change = 40 degrees temperature change =up 7 degrees identify the number model below that is correct. then cross out the incorrect model and complete the correct one. 40+7=? or 40+(7)=? 
math please help!!
i will make it more clear 10_?_= 20 
math please help!!
10blank=20 
6th grade science fair project
ABCDEFGHIJKLMNOPQRSTUVWXYZ 
math
7/1 
math
2.5/30 is your scale so 2.5/30=8/x a proportion, so cross multiply 2.5x=240 x=96 yeah i think you're right 
Math
distribute 12x3<2 add 3 12x<5 divide by 12 x<5/12 
geometry
the lengths of the diagonal of a rhombus are 2 in and 5 in. find the measure of the angles of the rhombus to the nearest degree. if it helps, we are learning how to use tangent right now! 
Writing
Hi! Try this Look up the Song, "How do you like me NOW" see how they say it. Then you will know which one to use. Hope I helped! :) 
US history
To what extent and for what reasons did the policies of the federal government from 1865 1900 violate the principles of LaissezFair which advocated minimal government intervention in the economy? 
calculus
assume f(x)=2x+8 and g(x)=5x. What is the value of (fg)(2)? i got 6 but i don't think that's right...is it? 
Elementary Math
What if we made a pattern by joining pentagons? If the length of each side of the pentagon is 1 unit, then what would be the perimeter of n pentagons joined together? Note: The perimeter is the distance around the outside of the figure. 
Math
poo poo 
Math
maia i hoped your right p.s. answer is H 
Math
30 plus 30 
physics
I have for about an hour and a half and I am still not getting the right answer. 
physics
a 10.0g object moving to the right at 20.0 cm/s makes a elastic headon collision with a 15g object moving in the opposite direction at 30.0 cm/s find the velocity of each object after the collision. 
math
Is x<z<y what you are looking for? 
AP chemistry
If 25.0g of water are decomposed at RTP how would you find the volume of hydrogen gas produced? 
math
i have a math competition next saturday can some please give me advice on how to study. some sites snd stuff i really need help for algebra thank you in advance 
math
i have a math competition next saturday can some please give me advice on how to study. some sites snd stuff i really need help for algebra thank you in advance 
math
thank you 
math
i don't understand 
math
in algebra if you have a problem like 2+2 will the answer be negative or positive? can you please explain why 
7th grade social studies
1. what are coureur de bois? 2. what are mjssionary jobs? 3. what was louisiana named after? 4. if new amsterdam is now new yorkthen what is new nethrlands called today? 
spanish
Thank you! I am going to pursue this! 
spanish
"Mi abuela está en el hospital." "Qué lástima! ____" a. No vale la pena. b. ¿Qué te duele? c. No lo sabía. d. ¿Qué tienes? D? My teacher says A, but it doesn't make sense to me. 
spanish
Thanks for checking this over! 
spanish
She says the doctor is talking about parts of the leg. 
spanish
"Doctor Pérez, me duele mucho la pierna. ¡Ay!" "Miguel, ¿te duele _____ ?" a. la derecha o la izquierda b. el derecho o el izquierda c. la morada o la rosada d. la quinta o la séptima A? My teacher says it is D. What do you think? 
Math help
It has been found that 60 percent of homes subscribe to a cable service including the program "Cooking with Math". However, of these subscribers, 18 percent never watch "Cooking with Math", while 15 percent claim to watch it more than 5 times per week. Find... 
english
Thank you! 
english
The essayist's role is to a. study a subject from various points of view. b. put together a believable plot. c. present an accurate account of an event. d. ridicule those who disagree with his or her opinions. A? 
Physics
There is a 1.2 m distance between a crest and an adjacent trough in a series of waves on the surface of a lake. In 30s, 35 crests pass a buoy anchored in the lake. What is the speed of these waves? 
Physics
There is a 1.2 m distance between a crest and an adjacent trough in a series of waves on the surface of a lake. In 30s, 35 crests pass a buoy anchored in the lake. What is the speed of these waves? 
Chemistry
describe how you would make a 2.5L of a .100M KCL solution from a 5.5M stock solution 
biology
Thanks 
biology
Which of the following is NOT a function of hormones? a. initiate behavior and reproduction b. coordinate the production and use of energy c. maintain nutrition and metabolism d. react to stimuli from outside the body B? 
5th grade
what are some features geographers can use to define a region? 
biology
Thank you 
biology
The brain stem is responsible for a. directing information in the brain and secreting hormones. b. regulating vital functions and memory. c. motor processing and regulating homeostatic functions. d. sensory processing and regulating balance. B? 
biology
OK, thanks! 
biology
When an impulse moves down the axon, a. sodium ions first rush out of the cell. b. a small part of the axon momentarily reverses its polarity. c. the resting potential of the cell does not change. d. potassium ions are pumped into the axon. B? 
biology
Thank you, again