# Mikey

Most popular questions and responses by Mikey

2. ## Chemistry

The reaction 2NO (g) + 2H2 -> N2 (g) + 2H2O (g) was found to follow the rate law, rate = k[NO]^2[H2]. By what factor will the rate of reaction increase when the pressure of NO gas is increased from 2.0 atm to 3.0 atm? Assume all other conditions are held

3. ## statistics

Five percent of all items sold by mail order company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company, a) both will be returned for a refund b) neither will be returned for a refund

4. ## English

Identify the subject, object, and verb in this sentence. Online classes require good time-management skills.

5. ## trigonometry

A plane is headed due west with an air speed of 300 mph. The wind is from the north at 80 mph. Find the bearing for the course and the ground speed of the plane.

6. ## Chemistry

How many grams of ice are needed to cool 250 ml of water from 75 degrees Celsius to 5 degrees Celsius? (m_ice * 6.01kJ) + (m_ice * 4.18J/g°C * (5-75°C) = -[250mL * 4.18J/g°C * (5-75°C)] ???

7. ## math

In the centre of every cell of a 5x5 board stands one kangaroo. Suddenly, a thunder strikes, and each kangaroo is startled so that it jumps over the side of its cell into a neighbouring cell, possibly joining one or more other kangaroos there. What is the

8. ## Chemistry

You have a .200M solution of NaCl. if you pipette 2.00 mL of the solution into a 25mL volumetric flask and dilute it to the mark, then what is the molarity of the new solution

9. ## physics

a hot air balloon rise above the ground, accelerating upwards at a rate of 2 m/s^2. The total mass of the hot air balloon and it occupants is 400kg. the density of the air is 1.3 kg/m^3. a) Determine the volume if the hot air balloon. b) if this

10. ## Music

I have heard of polyphonic textures, are polyphonic textures the same as polyphonic sections? Polyphonic sections are parts of a homophonic texture that vary and are polyphonic. Here is a site on polyphonic texture.

11. ## Chemistry

For the teaction system, 2SO2(g) + O2(g) 2SO3(g), Kc has a value of 4.62 at 450.0K. A system, at equilibrium, has the following concentrations: [SO3] = 0.254 M, [O2] = .00855 M. What is the equilibrium concentration of SO2(g)? The correct answer is 1.28M,

12. ## Chemistry- Buffers

a buffer is prepared by mixing .208 L of 0.452 M HCl and 0.5 L of 0.4 M sodium acetate. When the Ka= 1.8 x 10^-5 I figured out that the pH= 4.74 but then it asks how many grams of KOH must be added to the buffer to change the pH by .155 units?

13. ## trig

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket

14. ## English

I need help writing an essay comparing and contrasting two stories about how the society has changed the lives of grandparents. it's due by tomorrow

15. ## chemistry

I know everyone guessed i had a few more i couldn't do. Sorry but assistance please: 1.Sucralfate (molecular weight: 2087g/mol) is a major component of Carafate® which is prescribed for the treatment of gastrointestinal ulcers. The recommended dose for a

16. ## Math

Can someone give me the answers to pizzazz e-8 page

17. ## Williamson Reaction- CHEM

What would be the fate of any unreacted NaOEt reactant, ie. where does it end up, would it be a contaminant in the crude product or would it be removed, if so how (williamson reaction)

18. ## Prealgebra

Please help me to solve this word problem. How do I write and equation and solve? Find three consecutive even integers such that 50 times the smallest is 88 less than 46 times the largest

19. ## organic chem, crude mix

how do i know if the flex column in TLC successfully separated the three crude compounds(which were experimented and had rf values of , 0,0.5 and 0.55) in the crude mixture. Also which compound elutes first? And what is the reason for it to elute first?

20. ## trigonometry

1) Perform the operation and leave the result in trig. form. [3/4(cos pi/3 + i sin pi/3)][4(cos 3pi/4 + i sin 3pi/4)] Thanks

21. ## Math

A sports field has a shape that consists of semi circle and a rectangle as shown on the diagram on the right. The width of the field is 20m and its longest lengths measures 40 m. Find the area and the perimeter of the field.

22. ## trigonometry

1)Solve and write in standard form: 4x^2-4x+21=0 2)Find the standard form of the complex number. 8(cos pi/2 + i sin pi/2) Thanks everyone!

23. ## physics

A team of 6 scouts plans to cross a lake on a raft they designed. The scouts have wooden beams with an average relative density of 0.80. The beams measure 30cmx30cmx3m. The average scouts' mass is about 65kg and for their safety, they want the top of the

25. ## trigonometry

Simplify and write in standard form. 1.) (radical 3 + i radical 15)(radical 3 - i radical 15) 2.) 8 + 16i / 2i Thanks again everyone. Any help is appreciated.

26. ## Stiochiometry

15.8 grams of NH3 and excess O2 produces NO gas and H2O. 12.8 grams of NO gas was produced. Find the percent yield. Balanced Equation: 4 NH3 + 5 O2 -> 4 NO + 6 H2O

27. ## english

need some help..waht is predicate, predicator and predication in this sentence: Twenty years ago London could have claimed the title "Smog City,Europe". Writeacher has given good information here. http://www.jiskha.com/display.cgi?id=1178019535.1178021833

28. ## prealgebra

how do I write the first five recursively defined sequence of this problem a(n)=-2?please help and explain with steps

29. ## prealgebra

a junior basketball player has a goal of scoring at 1,000 points during his high-school career. his team plays twenty games per year, after two years he has 320 points. to be successful, how many points does he have to average per game over his last two

Sam serves a tennis ball at a speed of 90 miles per hour. If 0.62 mile is equivalent to 1 kilometer, what is Sam's serve speed in kilometers per hour? Round your answer to the nearest hundredth.

31. ## math

i have a 36 in. wide by 18 in. length by 20 in high rectangular aquarium that needs to be filled. i have a 12 in high cylindrical bucket with a 12 in diameter to fill the tank. if the aquarium contains 3 in of gravel and the bucket is to be filled to a

32. ## Math

Sam bought 1 of 250 tickets selling for \$2 in a game with a grand prize of \$400. Was \$2 a fair price to pay for a ticket to play this game.

33. ## science

can someone tell me how to draw a gene

34. ## Math

In a circle O draw a chord AB such that the length of major arc AB is twice the length of minor arc AB. How does the length of chord AB relate to the radius of the circle? I don’t get it.

35. ## pre algebra

Reiny can you please help with these 3 problem. 1. a1=-4;an-1-3 this is find the first five terms of the recursively defined sequence. Problem 2 and 3 is write the first terms of the explicitly defined sequence an=4n+2. problem 3 an=2(-3)n-1

36. ## pre algebra

what is the first five terms of the the following recursively defined sequence with the steps please. a=1;=3a

37. ## pre-algebra

can someone please help me to writ an inequality for this wor problem? Mr.Kirkland receives \$13/hr. for regular time (8hr./day) and double pay for working on holidays. He worked on Friday even though it was a holiday. If his week's pay was at least \$650,

38. ## University physiology

Most tissues regulated by the autonomic nervous system recieve both sympathetic and parasympathetic input from postganglionic neurons. The responses are typically local, in contrast the adrenal medulla recieves input only from the sympathetic division, yet

39. ## social studies

How did Mercantilism contribute to the American Revolution? a. It created the means of cultural diffusion in the New World b. It made the colonies economically independent c.It brought together the French, English, and Spanish influences on one continent

40. ## trig

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket

41. ## Science

Expain how there can be more heat energy in an iceburg than in a pot of boiling water.

42. ## MATH

I'M IN 6 GRADE PLEASE EXPLAIN HOW TO RENAME FRACTIONS TO DECIMALS AS EASY AS YOU CAN You divide the fraction by the the number at the top by the number at the bottom and get a decimal For example 5 --- = 6 doesn't go into the 5 so we add a 0 and a point

43. ## prealgebra

please help!!!! how do I find three times the first of two consecutive integers is at least twelve more than four times the second. And to find the greatest possible integers.

45. ## prealgebra

please help me to find the first five terms of the recursively defined sequence of this problem with steps, a1=3;an=6an-1.

46. ## prealgebra

can someone please help me to writ an inequality for this wor problem? Mr.Kirkland receives \$13/hr. for regular time (8hr./day) and double pay for working on holidays. He worked on Friday even though it was a holiday. If his week's pay was at least \$650,

47. ## prealgebra

please help to specify what the variable stand for, write a equation and solve for this word problem. if ben buys 24 items at \$3 each, how much change will he receive from a \$100 bill?

48. ## Calculus

Knowing that F(-2) = -7, F'(-2)= 12, g(-2)= -3 and g'(-2)= -9, Compute: a) h'(-2) if h(x)= f(x)g(x) b) h'(-2) if h(x) = f(x) / g(x) c) h'(-2) if h(x) = g(x) / 1+(f(x))^2 Show all steps

49. ## intergrals

find value of def integral with a=-2 and b=2sqrt(3) definite integral is : x^3 * sqrt(x^2+4) dx for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

50. ## PHYSICS!!!!! HELP!

The velocity of a diver just before hitting the water is -8.6 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.86 s of the dive? im so stuck. i tried this problem several times, and my

51. ## geog

sikh temples, muslim mosques thanks

52. ## Bio - Na+,K, and Cl- leave a cell as a result of?

Na+, K+, and Cl- leave a cell as a result of ? A) exocytosis B) pumps C) ATP D) a, b, and c

54. ## pre-algebra

can you please show me the steps for this word problem? in need to write the inequality and solve. how long will Kenzie drive if she averages 55mph and wants to complete at least 440 mi. of her trip?

55. ## pre-algebra

please help to write the inequality for this problem. the difference between a number and 10 is at most 27.

56. ## rf and elution

from a group of samples tested, is it true that the highest rf is the first the be eluted? If so, why is that?

57. ## rf factor and compounds

what does low and high rf factor mean, in compound polarity of its functional groups? Does having a certain kind of functional group increase rf factor, and some decrease? Can someone explain this to me please, with an example. Thank you :)

58. ## Grammar

I need to find a subject, verb and a object in this sentence. 1.Set a high value on spontaneous Kindness. Subject- verb- Object-

59. ## Algebra I

How would I find an absolute value inequality which x is less than or equal to 6 or x is greater than or equal to 10?

60. ## Geology

Hi i'm looking for some help finding information on the topic of "mineral deposits" - specifically; where are Ontario, Canada's largest ones, what are they & how did they form? I'm having trouble finding enough research on this topic for my paper so any

Casey has 10 olives to eat. She wants to have the same number of olives at lunch and at dinner. She wonders how many olives she should eat at each meal. Which number sentence fits this problem?

62. ## Integral

find indefinite integral [(sinx)^3]*[(cosx)^3] dx i got 1/192 * ((cos(6x)-9cos(2x)) + C but this isnt right. explain plz? thnx

63. ## Chemistry

A 350 ml of gas at 1.25 atm and 298 K is heated to 343 K an the volume increased to 750.0ml. What is te new pressure?

64. ## physics

If a runner travels at a speed of 10 m/s for 5 seconds, stops for a short time then continues on at a speed of 8 m/s for 4 seconds. How long was the runner stopped for if his average speed at the end of the trip is 4 m/s.

65. ## Biology

Explain how the world would be different if C4 plants and CAM plants had not evolved.

66. ## Math

Two equal corcles intercept each other. Find the area of the overlapping region, if the radii of the circles are 10 cm each and the distance beten centers also equals 10 cm. How do i solve this? Thank u in advance.

67. ## Math

In a circle O, draw chord AB such that AB = r (r is the radius) find the length of theminor arc AB. (Tried drawing it, and it ended up having a 90 angle but it didn’t work. What do i do?)

69. ## prealgebra

please help me to find the least possible consecutive odd integers such as that eight times the smaller one is at least 25 more than the difference of the two integers. I don't remember my teacher teaching this so please help me.

70. ## pre algebra

find a variable and writing and equation and solve. the hoe team scored 80 points and won by 19. How many points did the opposing team make?

71. ## Geology

Does anyone know where are Ontario's largest mineral deposits other than the ring of fire in the north? Thanks for the link Ms. Sue, still having trouble.

72. ## Number Sequences

Explain It. What do you need to do to extend a pattern?

73. ## Calculus antiderivatives

find an antiderivative of the function ((t-1)^2)/sqrt(t) that goes through the point (1,2) i find derivative of top and bottom first and get 2t-2/(1/2*sqrt(t)) but this doesnt give right solution then i find diervative of that again and i get 2/(-1/4 *

74. ## integral calculus

find indefinite integral [(sinx)^3]*[(cosx)^3] dx i got 1/192 * ((cos(6x)-9cos(2x)) + C but this isnt right. explain plz? thnx

75. ## integrals

find value of def integral with a=-2 and b=2sqrt(3) for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

76. ## def integrals

find value of def integral with a=-2 and b=2sqrt(3) for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please

77. ## Physics [No Math]

When calculating weights away from Earth's surface, for example: At 6.38x10^3 km away from Earth's surface a spacecrafts weight is d=rE+rE Then F=(1/4)(SpaceCraftWeight) Why is the distance 2rE?

78. ## trigonometry

Find the magnitude of the resultant force and the angle between the resultant and each force: Forces of 2 lbs and 12 lbs at an angle of 60 degrees to each other.

79. ## Physics HARD

If an objects vbr is 6.32N/sc what is its mass? I'm so stuck...:((((

80. ## Math

How can you use rounding to estimate 331 + 193?

81. ## math

If alpha= 33.5degrees, a=7.4, and b=10.6, then what is beta to the nearest tenth of a degree.

82. ## math

(rewrite of prev question) If alpha=8degrees, beta=121degrees and c=12 then what is Y?

83. ## math

If a=8degrees, b=121degrees and c=12 units, then what is Y?

84. ## arithmetic

I am greater than 200 but less than 500. The sum of my digits is 18. the product of my tens place digit and my 100's place digit equal 20. What digit am I ???

85. ## trigonometry

verify the identity: (cosx/1+sinx) + (1+sinx/cosx) = 2secx

86. ## hcs588

What key measurments tools would you use to measure quality outcomes such as a reduction in patient falls, medication errors, complication rates? Why?

87. ## Statistics

2. Obtain and interpret descriptive statistics (Mean, Median, Variance, and Std. Dev.). Include the STATA outputs in your results. (Use Stat command “tabstat crimerat police59, statistics(mean, p50, var, sd)” (3 pts) . tabstat crimerat

88. ## CHEMISTRY RIDDLE!!!!

hi! i was just wondering if you could help me figure out this riddle!! im absolutely stumped!!! "Anger: an acid that can do more harm to the vessel in which it is stored, than to anything on which it is poured" is a quote attributed to Seneca, a Roman

89. ## algebra

Ok so ive gotten this far on finding the points of (2004, 3370) and (2007, 3552) can someone help me find out the equation in y=mx+b form please

90. ## year 7 music

explain ternary form what have played/sound in this structure thanks for your help!

91. ## Bioo // gateway for ions to enter and leave a cell

Gateway for ions to enter and leave a cell ... A) hydrophobic end B) hydrophilic end C) protein channels D) a, b, and c

92. ## geography

Whats a good site to go to get information about a county? The information is just the capital, culures, stats, basic information that's all. Thanks

1. ## Chemistry

its 2.04 apex

posted on June 25, 2018
2. ## math

Im starting to think they made a mistake in the question. I really think the right answer is 15

posted on March 17, 2018
3. ## math

they cant jump diagonaly

posted on March 17, 2018
4. ## prealgebra

posted on November 30, 2017
5. ## prealgebra

can you explain or show the steps

posted on November 6, 2017
6. ## prealgebra

no it didn't help. can you do more

posted on November 5, 2017
7. ## pre algebra

i need to write the first five

posted on November 2, 2017
8. ## pre algebra

problem 2 and problem 3 is to write the first terms of the explicitly defined sequences. problem 2: a(n)=4n+2. and problem 3: a(n)=2(-3)n-1.

posted on November 2, 2017