Tarkan

Most popular questions and responses by Tarkan
1. physical

an orienteer runs 300m north and then 400m to the southeast (at a 45 degree angle to north). if he runs at a constant speed, how far away is he from the starting position?

asked on January 24, 2015
2. Plzz help me

the reaction BrO3- + 3SO3 2- ---> has the rate law r= k[BrO3-][SO3 2-]. what is the order of the reaction with the respect to each reactant? wat s the overall order of the reaction?

asked on November 10, 2011
3. Chemistry

Which of the following would you expect to act as bronsted-Lowry bases: Br-, H3PO4, H2O, Li+, NH4+, NH2-. Explain your choices. Thank you

asked on December 22, 2010
4. vectors components

plz answer my question a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out from one bank. a marina is directly across the river, on the opposite bank. if the motorboat heads directly toward the marina,

asked on March 18, 2012
5. physics

an orienteer runs 300m north and then 400m to the southeast (at a 45 degree angle to north). if he runs at a constant speed, how far away is he from the starting position?

asked on January 24, 2015
6. Vectors

a river is 2 km wide and flows at 4km/h. a motorboat has a speed of 10 km/h in still water and heads out from one bank. a marina is directly across the river, on the opposite bank. if the motorboat heads directly toward the marina, how far downstream from

asked on March 12, 2012
7. Biology HW HELP

hey i need help for some of these questions and on pedigree with the help of this story......This is the story of Grandma and Grandpa Flipnob, and their clan! They were married way back in 1933 and have been just like newlyweds ever since. From their

asked on November 23, 2010
8. Heeelllppp in chemistry plzzzz

the reaction BrO3- + 3SO3 2- ---> has the rate law r= k[BrO3-][SO3 2-]. what is the order of the reaction with the respect to each reactant? wat s the overall order of the reaction?

asked on November 10, 2011
9. Chemistry

What will be the pH of an aqueous solution containing 0.040 mol/L sodium hydroxide?? I got 1.40 or 1.398 I rounded the numbers is my answer right??? If not what's the right answer?? I know I wrote the question again, because on the previous answer I did

asked on December 23, 2010
10. Calculus

Fnet= F1+F2+F3, F1=40N with bearing of 90' , F2=25N with bearing of 30' ,and F3= 12N with bearing of 290' what is the magnitude and direction ....using VECTOR COMPONENTS....

asked on March 12, 2012
11. Assignment help (chemistry)

in the reaction, N2O4-->2NO2, if the rate of formation of NO2 were 0.010 mol/L*s,, what would be the rate of decomposition for N2O4 Plz show steps thx

asked on November 10, 2011
12. chemistry

an evil chemist would like to produce 2.4 toones of sulphur dioxide to pollute his city. the chemist know that zinc sulphide and oxygen can react to produce zinc oxide and sulphure dioxide. how much oxygen and zinc will he need to purchase to make his

asked on November 11, 2010
13. Calculus

Fnet= F1+F2+F3, F1=40N with bearing of 90' , F2=25N with bearing of 30' ,and F3= 12N with bearing of 290' what is the magnitude and direction ....using VECTOR COMPONENTS....

asked on March 12, 2012
14. Math

How to write a math story that includes 4 examples... Possible math topics include: introduction to functions investigating quadratics quadratics highs & lows exponential functions fiancial applications of exponential function acute triangle trigonometry

asked on January 13, 2011
15. chemistry

an impure sample of oxalic acid C2O4H2, with a mass of 0.465g, is dissolved in water. a few drops of phenolphthalein indicator solution are added, and the solution is titrated with 0.190 mol/L aqueous sodium hydroxide held in a burette. the solutointurns

asked on December 24, 2010
16. english grade 12 Important due on monday

hey i need help .....how can i start the essay with the introduction ( containing my thesis) about the links between animal behavior and human behavior and i need also give examples from the book "life of Pi" thaks for everyone who help me out!!!!

asked on November 25, 2010
17. CHEMISTRY

WHAT WILL BE THE BALANCE CHEMICAL FORMULA FOR THIS QOUESTION ammonia is produced by sythesizing nitrogen and hydrogen gas. if i have 2 mols of nitrogen gas and 5 mols of hydrogen gas, which reagent will run out first??

asked on November 11, 2010
18. chemistry

nitrogen gas and oxygen gas combines to produce nitrogen dioxide. What amount of oxygen gas is needed to completely react with 3kg of nitrogen gas?

asked on November 11, 2010
19. Calculus

Fnet= F1+F2+F3, F1=40N with bearing of 90' , F2=25N with bearing of 30' ,and F3= 12N with bearing of 290' what is the magnitude and direction ....using VECTOR COMPONENTS....

asked on March 12, 2012
20. Chemistry

What is the conjugate base for each of the following acids? NH3, HSO3-, H2PO4-, H3O+, NH4+.

asked on December 22, 2010
21. Chemistry Gd 11

If 150g of C8H18 is combusted what mass of water will be produced???

asked on November 9, 2010
22. stoichiometry problems

Hey I hve problems with calculate stoichiometry problems and next week I have a test about it can someone help me out and give me a site where everything is written step by step ....thank u guys :) I REALLY NEED HELP NO JOKING

asked on November 12, 2010
23. Chemistry

Hydrogen peroxide decomposes into water and oxygen. What amount of hydrogen peroxide is necessary to produce 1 kg of oxygen

asked on November 8, 2010
24. Chemistry HELP

fast no+no-->n2o2, slow n2o2+h2-->n2o+h20, fast n2o+h2-->n2+h2o 1)What is the intermediates in the rxn 2)Write the rate law for this process

asked on November 10, 2011
25. Chemistry

fast no+no-->n2o2, slow n2o2+h2-->n2o+h20, fast n2o+h2-->n2+h2o 1)What is the intermediates in the rxn 2)Write the rate law for this process

asked on November 10, 2011
26. Chemistry

Liquid Hydrogen perchlorate HClO4 dissolves in water to form what?? Plz write the equation...and also can someone identify the hydrogen ion donor and acceptor thank you :-)

asked on December 22, 2010
27. chemistry HELP

hydrogen peroxide (H2O2) decomposes into water and oxygen. what amount of hydrogen peroxide is necessary to produce 24g of oxygen.

asked on November 11, 2010
28. chemistry HMWK help.......

ammonia is produced by sythesizing nitrogen and hydrogen gas. if i have 2 mols of nitrogen gas and 5 mols of hydrogen gas, which reagent will run out first?? a) if i have 0.0345 mols of nitrogen gas and 0.0537 mols of hydrogen gas, which reagent will run

asked on November 11, 2010
29. chemistry HELP......

what mass of hydrogen will react with 25g of oxygen to produce water?

asked on November 11, 2010
30. chemistry HMWK help.......

you decide to have a BBQ in your backyard. you have 1Kg of pentane (C5H12) in the tank. What is the amount of carbon dioxide (in mass and mols) you will be contributing to the greenhouse gas effect by using up that 1Kg of pentane? plz.... need the answer

asked on November 11, 2010
31. chemistry

ten mols of metallic iron was dissolved in concentrated HCl.what is the balanced chemical equation? a) what is the mass of each product that formed? b) what amount of HCl was used in this reaction? need help in those three questions please......

asked on November 11, 2010
32. Chemistry grd 11

Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

asked on November 8, 2010
33. Math 12

(2,1) is a point on the graph of y= f (x) . Find the corresponding point on the graph of each of the following functions a) y= -f (-x) +2 b) y= f (-2(x+9))-7 c) y= f (x-2) +2 d) y= 0.3f (5(x-3)) e) y= 1- f(1-x) f) y= -f (2(x-8))

asked on October 11, 2011
34. Chemistry 12

How to draw the structural diagram of 2,3 dichlorohexane

asked on September 10, 2011
35. biology

how to label the ecstasy molecular structure plz name each part the formula is C11 H15 NO2 HCl

asked on February 28, 2011
36. Chemistry

What will be the pH of an aqueous solution containing 0.040 mol/L sodium hydroxide?? I got 1.40 or 1.398 I rounded the numbers is my answer right??? If not what's the right answer??

asked on December 23, 2010
37. Chemistry HELP

A solution of gaseous methylamine, CH3NH2, turns red litmus blue. Write the equation and explain this observation.

asked on December 22, 2010
38. Re chemistry

What are the concentrations in mass of the following solutions: a) a 200mL aqueous solution containing 4.26g sodium solfate. b) a 2.00 L aqueous solution containing 107.0g ammonium chloride NH4Cl. Plz can give me someone the answers for BOTH and the steps

asked on December 5, 2010
39. chemistry HMWK help....... REPOST

you decide to have a BBQ in your backyard. you have 1Kg of pentane (C5H12) in the tank. What is the amount of carbon dioxide (in mass and mols) you will be contributing to the greenhouse gas effect by using up that 1Kg of pentane? plz.... need the answer

asked on November 11, 2010
40. Chemistry Gd 11

How many product can be produced from 37g of sodium ???

asked on November 9, 2010
41. chemistry help plzzz

how can i calculate the pH of the solution obtained when 50.00mL of 0.150mol/L hydrochloric acid is added to 75mL of a 0.111 mol/L aqueous sodium hydroxide solution. need help i am stuck with that question thank you :)

asked on December 24, 2010
42. Chemistry

What are the concentrations of the following solutions: a) a 200mL aqueous solution containing 4.26g sodium solfate. b) a 2.00 L aqueous solution containing 107.0g ammonium chloride NH4Cl. Plz can give me someone the answers for BOTH and the steps how you

asked on December 5, 2010
43. chemistry

provide with enough heat, magnesium and oxygen can undergo a synthesis reaction. how much magnesium is neede if 3.5kg of product is desired?

asked on November 11, 2010
44. Chemistry Gd 11

How many moles of chlorine gas would reacht with 10 moles of sodium to form sodium chloride?

asked on November 9, 2010
45. Chemistry grd 11

Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

asked on November 8, 2010
46. Biology 12

Triaglyceride with three F.A.chains of 20 carbon how to calculate the ATP production Plz show the steps thank you

asked on April 5, 2011
47. Biology

in what categorize does Esctacy belong to? carbohydrate, lipid, protein or nucleic acid and why. can some give me 2 or 3 exaple why is belogs to it thank you in advenge

asked on February 27, 2011
48. Biology

how does esctacy work plz i need 3 explanation

asked on February 27, 2011
49. biology

in what categorize does Esctacy belong to? carbohydrate, lipid, protein or nucleic acid and why. can some give me 2 or 3 exaple why is belogs to it thank you in advenge

asked on February 27, 2011
50. English

How can i compare life of pi with wall e in a hero's journey and what 3 point are most important to write a essay. Any help is needed thank u :)

asked on December 29, 2010
51. Chemistry Gd 11

How many molecules of product would be produced from 10g of chlorine gas ??

asked on November 9, 2010
52. Chemistry

Provided with enough heat, magnesium and oxygen can undergo a synthesis reaction. How much magnesium oxide is produced if 50g of Mg is reacted with 50g of oxygen?

asked on November 8, 2010
53. English help

Can anybody help me with wall-e the animation movie in a hero journey thank u :)

asked on December 31, 2010
54. Education problem

what do i need to know before going to the university from high school for dentistry (which book is helpful for studying dentistry)

asked on January 4, 2011
55. Chemistry HMWK HELP

what is the overall neutralization reaction equation and the net ionic equation for potassium hodrogen sulphate and sodium hydroxide. Need help with my hmwk. Thank you

asked on December 23, 2010
56. chemistry hw help :)

which of the following substances dissolve in each other? and why? water ethylene glycol isopropanol cycolohexane ethyl acetate

asked on November 29, 2010
57. Biology HELP

Triaglyceride with three F.A.chains of 20 carbon how to calculate the ATP production Plz show the steps thank you

asked on April 5, 2011
58. Chemistry help plz

How to calculate the hydronuim ion cencentration of solution with a pH of 2.5?

asked on December 23, 2010
1. Chemistry

what is the overall neutralization reaction equation and the net ionic equation for potassium hodrogen sulphate and sodium hydroxide. Need help with my hmwk thank you

posted on December 23, 2010
2. chemistry HMWK help.......

hey can u show me the shorter way to do plzzz and thx for the answer... :)

posted on November 11, 2010
3. chemistry

thanks foe helping me, but there are no steps shown ????

posted on November 11, 2010
4. chemistry HMWK help.......

C5H12 + 8O2 -----> 5CO2 + 6H2O i balance the equation i hope its right.so what the next step....

posted on November 11, 2010
5. chemistry

there is also part a) and b) to this qoustion that i wrote. i forgot to write it sorry. a) what amount of oxygen is neede to react completely with 2.4g of magnesium? b) if i have 2g of magnesium and 5g of oxygen, which reactant will run out first???

posted on November 11, 2010
6. Chemistry grd 11

Hey thank u for ur answer ... but can u show me with steps from question 4 to 6 please because I didn't get it what u mean there and please can u tell me what the answer will be thank you .....

posted on November 8, 2010