1. chemistry

Consider the reaction 3CH4(g)= C3H8(g)+ 2H2(g). Using data from Appendix C in the textbook, calculate delta G at 298 K.

2. chemistry

Reactions in which a substance decomposes by losing CO are called decarbonylation reactions. The decarbonylation of acetic acid proceeds as follows: CH3COOH(l)= CH3OH(g)+ CO(g. By using data from Appendix C in the textbook, calculate the minimum

3. Chemistry

Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) delta H1? MgO(s) + 2HCl(aq) ->MgCl2(aq) + H2O(l) delta H2? To make these equations add up to the formation reaction of MgO, you will need to include the following: H2(g) + 1/2O2(l) delta H =-241.8 kJ Using Hess's Law

4. math

A playground is on the flat roof of a city school, 5.8 m above the street below (see figure). The vertical wall of the building is h = 7.30 m high, to form a 1.5-m-high railing around the playground. A ball has fallen to the street below, and a passerby

5. chemistry

After 56.0 min, 25.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?

My daughter needs to use PROPORTION to solve metric conversions. Can you please help? The question are for the following conversions: g=kg ___g = 5.114 kg km=m 0.5 km = ___m These are the other conversions that we need to make: ml=L g=mg cm=m kg=g km=m 0.5

7. math

Alan's room has an area of 18 square feet. He is planning to buy another rug twice as long and twice as wide.What is the area of the new rug?

8. Physics

A 80.0 N box of is pulled 20.0 m up a 30.0 Degree ramp by a force of 115 N, if the coefficient of kinetic friction between the box and the ramp is .22 what is the box's kinetic energy?

9. chemistry

Consider the reaction 3CH4(g)= C3H8(g)+ 2H2(g).Calculate Delta G at 298 K if the reaction mixture consists of 40 atm of CH4 , 0.011 atm of C3H8, and 2.1×10−2 atm of H2.

10. Physics

A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to city B. Finally, the

11. chemistry

Mercury reacts with oxygen to produce mercury(II) oxide. Hg(l) + O2(g) → HgO(s) a. Balance the reaction equation. Include physical states. 2Hg(l) + O2(g) → 2HgO(s) b. What is the theoretical yield (in grams) of HgO if 255 g of Hg are reacted with 255 g

12. economics

Suppose that the company Mama's Pies adds another store to sell its pastries. Supposed that it costs \$400,000 to build the new store and assume that the new store will generate revenues of \$450,000. What is the rate of return on this investment?

13. chemistry

what mass of oxygen would be required to completely burn 6.75 g of propane in the following reaction? C3H8+5O2 => 3CO2+4H2O * please help

14. American Government

Which statement does NOT characterize Martin Luther King Jr.'s "I Have a Dream" speech? 1.)It openly criticized the Governor of Alabama 2.)It supported the peaceful congregation of peoples of all races and religions 3.)It pointed out racial problems in the

15. math

The perimeter of rectangle ABCD is 256 inches. It's length is 3 times as long as its width. Find the area of triangle ABC.

16. chemistry

when 0.100mole H2S was put into a 10.0-L vessel and heated to 1132C, it gave an equilibrium maixture containing 0.0285 mol H2. @hat are the valuesw of Kc and Kp at this temperature?

17. Microbiology

Live cultures of Bacillus thuringiensis (Dipel) and B. subtilis (Kodiak) are sold as pesticides.What bacterial structures make it possible to package and sell these bacteria? For what purpose is each product used?

18. Chemistry

What is unusual about thymol blue? Why does thymbol blue change color at the pH that is does?

19. chemistry

how many moles of oxygen are required for the combustion of 25.5 g of magnesium

20. phyisics

A 615 kg racing car completes one lap in 14.3 s around a circular track with a radius of 40.0 m. The car moves at constant speed. (a) What is the acceleration of the car?

21. Algebra

The bongo family has three children, including a pair of twins. The third child is 3 years younger then the twins. The sum of the three ages is 42. How old is each child?

22. Math

An airplane leaves the airport and flies due west 170 miles and then 240 miles in the direction 200°30'. Assuming the earth is flat, how far is the plane from the airport at this time( to the nearest mile)?

23. physics

a stone with a mass of .700kg is attached to the end of a rting 0.900m long. the string will break if its tension exceed 60.0 N. the stone is whirled in a horizontal circle on a frictionless tabletop; the other of the string remain fixed. Find the maximum

24. chemistry

Yellow colors in fireworks are die to the 589 nm radiation of sodium ions. a.) How much energy is given off by one photon of sodium?

25. calculus

A particle moves in a straight line with velocity given by v(t) =sin t metres per second. Find the total distance travelled by the particle in the first 4 seconds of motion

26. physics

two packages at ups start sliding down the 20 degrees ramp. package a has a mass of 4.5kg and a coefficient of friction of 0.2. package b has a mass of 8.5 kg and its coefficient of friction is 0.13. how long does it take package A to reach the bottom if

27. Math

to measure the height of the Eiffel Tower in Paris, a person stands away from the base and measures the angle of elevation to the top of the tower to be 60 degrees. Moving 210 feet closer, the angle of elevation to the top of the tower is 70 degrees. How

28. math

a factory produces 150,000 lightbulbs per day. the manager of the factory estimates that fewer than 1,000 defictive bulbs are produced each day . in a random sample of 250 lightbulbs , there are 2 defictive bulbs . determine whether the managers estimate

29. physics

A man with a mass of 52 kg stands up in a 66-kg canoe of length 4.0 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and the water. How

30. chemistry

Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.80 g of Zn.

31. grammar

Hyphens are so confusing, so I'm asking for a little help. 2. Select the sentence which is correctly punctuated. A) He came in for his follow up. B) He came in for his followup. My answer: B 4. Select the sentence which is correctly punctuated. A) He will

32. Math

Mr. Clarkson and Mrs. Rose had an average of \$180. After Mr. Clarkson spent \$73 and Mrs. Rose received \$38 from her father, Mr. Clarkson had 1/4 as much money as Mrs. Rose. How much money did each have at first?

33. Calculus

4. At time t, t>0, the volume of a sphere is increasing at a rate proportional to the reciprocal of its radius. At t = 0, the radius of the sphere is 1 and at t = 15 the radius is 2. a. Find the radius of the sphere as a function of t. b. At what time t

34. 1 chem question

A base has a Kb of 2.5 x 10–11. Which of the following statements is true? This is a concentrated base. This base ionizes slightly in aqueous solution. This is a strong base. An aqueous solution of this base would be acidic. (do explain. i don't

35. calc

If x2 + y2 = 100 and dy/dt = 9, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)

36. statistics

A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. What score do 75% of the students exam scores fall below? And, how was

37. Physics

The drawing shows two fully charged capacitors (C1 = 7 µF, q1 = 4 µC; C2 = 16 µF, q2 = 4 µC). The switch is closed, and charge flows until equilibrium is reestablished (i.e., until both capacitors have the same voltage across their plates). Find the

38. chemistry

Aluminum and oxygen react to form aluminum oxide. 4 Al + 3 O2 2 Al2O3 a. What is the limiting reactant if 36.4 g Al are reacted with 36.4 g of O2? O2 b. What is the theoretical yield of Al2O3, in grams? 68.8 g c. If 22.2 g of Al2O3 are obtained, what is

39. Statistics

A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. The professor decides to grade on a curve. If he wants 0.15% of the

40. Physics Help

While a person is walking, his arms swing through approximately a 45° angle in 1/2 s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.

41. Geometry

Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.

Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?

43. physics

A mango fruit drops to the ground from the top of its free which is 15m high.how long does it take to reach the ground.

44. US History

During the period 1800 to 1820, which of the following issues dominated nation government concerns? Indian removal, western expansion, tariff issues, New England's success with nullification, or successful foreign policy changes with France & Italy. I

45. math

What multiplication fact could you use to find a number that can be divided equally by 8 and 9? My answer is 8 x 9 = 72. Is this correct?

46. math

Shaun collects coins. He has 24 quarters and 32 pennies in a jar. What is the ratio of quarters to pennies in the jar?

47. Physics

A force 1 of magnitude 7.20 units acts on an object at the origin in a direction θ = 29.0° above the positive x-axis. (See the figure below.) A second force 2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find

48. Physics i.e science

A density bottle has a mass of 35g when empty, 85g when filled with water and 75g when filled with kerosene. Calculate the density of kerosene in g/cm3.

49. literature

Write two original sentences for each of the following seven sentence patterns: 1.S-V-DO (includes S-V-DO-OC) 2.S-V 3.S-V-IO-DO 4.S-LV-PN 5.S-LV-PA 6.EXPLETIVE-VERB-SUBJECT (inverted sentence) 7.QUESTION PATTERN

50. Chemistry

If 25 grams of CoCl2•H2O,2 being the subscript of cl and the h, was heated to constant weight. What mass of anhydrous salt would remain?

51. chemistry

1-Butene (CH2=CHCH2CH3) burns in the presence of O2 to produce CO2 and H2O. Write the balanced chemical equation for this reaction (omit physical states and use condensed molecular formulas). CH2CHCH2CH3+6O2=4CO2+4H2O

52. Chemistry

Calculate mass of iron in tablet by spectroscopy? I have to calculate the mass of iron in a tablet..The manufacturers claim it contains 60 mg elemental iron. background info: The tablet was crushed and dissolved in 25ml of 6M Hcl, filtered and added to a

53. Math

If 50% of the students in your class are men and 20% of the students have blond hair, which of the following describes the percentage of students in your class who are men with blond hair?

54. chemistry

A 1.04-L sample of gas at 759 mmHg pressure is expanded until its volumes is 2.24 L. What is the pressure in the expanded gas sample (at constant temperature)?

55. physics

two ends of a string in her hands and then moves her hands up and down so that a wave travels from one end of the string to the other end. In which case will she have a standing wave along the string?

56. AP CHEMISTRY

If a solution of HF (Ka = 6.8 10-4) has a pH of 3.42, calculate the total concentration of hydrofluoric acid.

57. chemistry

Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide. a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.) 2Al+3O2=2Al2O3 b. which

58. Physics 12

I need help on solving this problem A plane with an air speed of 400km/hr wants to go north but a wind of 70 km/hr is blowing west. What must be the planes heading (to go north)? What will be its resulting ground speed?

59. chemistry

The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 * 10^14 Hz. What is the wavelength of this radiation in nanometers?

60. college physics

calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

61. chemistry

a mixture of 0.500 mol H2 and 0.500 mol I2 was placed in a 2.00-L stainless-steel flask at 430C. Calculate the concentrations of H2, I2, and HI at equilibrium

62. Statistics

On standard IQ tests, the mean is 100 and the standard deviation is 13. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is between 61 and 139.

63. math

A tree casts a shadow that is 20 feet long. A 5-foot-tall boy stands in the shadow so that the end of his shadow lines up with that of the tree. His shadow is 6 feet long. How tall is the tree

64. English

I left out these sentences. Can you please help me express them? Thank you very much! 1) I also use Internet to download music from different websites and then I save it on my computer or MP3 player. (where else can I save it? Flashdrive, USB memory

65. algebra

0. Tell your classmates about your pet to set up the scenario for fencing a rectangle in your yard. 1. You MUST start by choosing an amount of area that you want to fence in for your pet and this MUST be stated first. What amount of area are you enclosing

66. Math

. An IRS auditor randomly selects 3 tax returns from 59 returns of which 11 contain errors. What is the probability that she selects none of those containing errors? Round to four decimal places.

67. Standard Deviation

On standard IQ tests, the mean is 100 and the standard deviation is 16. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is more than 100.

68. Physics

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

69. Math

Jerry bought 2 pies. He cut each pie into 6 slices. Over the week, he ate all of one pie and 2 slices of the ow much of the total slices did he ate.

70. algebra

Please help me. I have cut up the paper and followed the directions, I do not know what mathematical truth this is. help help help. I don't understand this. the problem is below: Cut a piece of paper to form a triangle shape. Tear off the three corners of

asked by Lucy needs help now
71. Social Studies 9

I have to write a pamphlet for my teacher, the pamphlet is on Charles the First, in the view of Walter Prynne. How am i supposed to do this? My teacher never explained how. she just said to do it and gave us a sheet that said basically what she had said,

A substance seems to completely fill a container, but more can be forced in. The substance is a

73. statistics/correlation relations

What does your scatter diagram look like? Briefly describe it. Based on your prediction about the relationship between the amount of coffee people drink and the number of hours they sleep, what is your H0 and what is your HA ? Did you find a positive

74. chemistry

Consider the following reaction. 4Fe + 3O2=2Fe2O3 a. How many moles of O2 are required to react completely with 29.8 mg of Fe? 4.00 x 10^-4 moles O2 b. How many grams Fe2O3, are produced from the complete reaction of 17.8 g of Fe? 25.4 g Fe2O3

75. Angular Acceleration

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

76. English 10 --- Check Please

I this paragraph correct? Many names for groups are quite interesting. Group names were commonly used at one time. Now only a few of them are rare, some like "a pride of lions" or " a school of fish." Yet some group names are really neat in describing, for

77. English

To answer the question below, use an idea that you generated in Part 2 of Lesson 2 or come up with a new idea. In the text box provided below indicate the following; The writing idea The kinds of questions you will be writing (Informational , Personal, or

78. chemistry

What mass of potassium chloride, a salt substitute often used by heart patients, can be produced directly from 5.2 g potassium and 7.9 g chlorine? 9.9 g

79. Physics

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

80. Chemistry

How would you prepare 10.0 Liters of a solution that was 20 parts per million sodium perchlorate in water? What would be the molarity of the solution (assume density is 1.0 g/mL and 1ppm=1 mL/L)?

81. Chemistry

Without detailed equilibrium calculations, estimate the equilibrium concentration of SO3 when a mixture of 0.134 mol of SO2 and 0.067 mol of O2 in a 275 mL flask at 300oC combine to form SO3. 2 SO2(g) + O2(g) = 2 SO3(g) Kc = 6.3x10^9 I tried doing an ICE

82. physics

A golfer drives a ball with a velocity of 42 m/s at an angle of 45 degrees above the horizontal. What is the maximum height (in meters) of the ball above the level fairway?

83. college physics

calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

84. biology

Total body sodium content determines extracellular fluid volume, and is regulated by the balance between sodium intake and sodium loss. Oubain is a poison that causes blockage of the Na+/K+ ATPase. Which of the following would occur after administration of

The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?

87. Civics

Article II of the United States Constitution established the _____. presidency only presidency and the vice presidency the vice presidency only =the Senate and the House

88. English

jake dad not be anymore physical and he not be able to grab jake daughter when she fall into lake. Jake effects rescue. what be the symbolic meaning of incident? jake own past come infront of his eyes?

89. Calculas

Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

EXAMPLES OF macro and micro sociology cannot be : prostitution gender inequality economy homelesness

91. jake

2. Solve this equation: 80 = 3y + 2y + 4 + 1. A. y = –15 B. y = 1/5 C. y = 75 [D. y = 15] i don't realy know if that is correct because i think it could be negative like in a please let me know

92. Statistics

On standard IQ tests, the mean is 110 and the standard deviation is 15. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 155.

93. Chemistry

Consider the following reaction. 2KClO3(s) ¨ 2KCl(s) + 3O2(g) A)How many grams of KCl are produced from the complete reaction of 10.9 mol of KClO3? B)How many grams of KCl are produced from the complete reaction of 86.2 g of KClO3?

94. English

I included a few questions and a short paragraph about a teenager talking about the internet (Do you think I should add other reasons for using the net?) 1) What does the sentence "I'm sick leaving" mean? Does it mean "I'm on scik leave?" 2) My students

95. College Physics

A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land?

96. statistics

How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in

97. Shurley English

How would you label sting in "Ouch, that bee sting hurts."

The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

99. College mathematics 1

The end of a 30 inch pendulum describes an arc of 6 inches through what angle does the pendulum swing?

100. math. need help

United States citizens living in Switzerland must pay taxes on their income to both the United States and to Switzerland. Suppose that the United States tax is 28% of their taxable income after deducting the tax paid to Switzerland. Suppose that the tax

101. English

ms. sue this be english continued from yesterday on story questions :)and i try to remember to put capital English now :) what be jakes attitude toward darkness and night? i only read that he like darkness because he lose his parents in daylight. i not

102. physics

A mango fruit drops to the ground from the top of its free which is 15m high.how long does it take to reach the ground.

103. college algebra

What is the answers and break down of them, Typing hint: Type x 2 as x^2 (shift 6 on the keyboard will give ^) 1) Solve the following quadratic equation by factoring: a) 7 010 2 xx =++ Answers: Show your work here: b) Solve the quadratic equation using the

104. math

Given 9 yards of fabric how many whole costumes could be made if each costume uses 1 3/7 yards of fabric

105. English

when jake tell her daughter that her grandfather be really sick, she say "Oh" which be a wounded soung. a moan. orpheus look back and regret in his throat. what this tell about jake daughter? she be innocent?

106. history

All of the following statements regarding the Monroe Doctrine are correct EXCEPT? A. Issued by Monroe in response to an onslaught by European monarchies against democracy in the Americas. B. Would have been ineffective without the backing of the British

107. biology

1) I can't finish my homework due to this one question, please tell me where I can find this question, thanks! What are levels of protein structure of Angiosperms?

108. Math Lit

A Maths Literacy tutor charges R200 for an hour lesson. A)how much would it cost for a private lesson? B)What Would it cost for two learners to hav a lesson together?

109. Chemistry

How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?

110. science-physics

a boat travels in still water at 2m/s. It is rowed across a river that flows at 1m/s. Determine the resultant velocity of the boat

111. physics

Suppose the rubber rod holds -3 pico-Coulomb at x=0 and the uncharged ball has +2 femto-Coulomb at x= 50mm, as well as -2 femto-Coulomb at x=55mm distance. What would be the electric Force applied to the ball? I used the equation F=q1q2/d^2 and did two

112. English

i not get this question which be author come back to his Orpheus allusions with question referrring to jakes dad, "what songs found their out, or had any?" what be jakes hope for his dad?

113. Civics

Which of the following was NOT a reason why a stronger central government was needed? To solve the economic problems of the United States =To limit individual liberties To deal with military matters both internal and external To make the States work

114. English- evaluating essay

I have write a evaluation essay on the movie Troop 1500. So my thesis is -Taking daughters to see their mothers in jail should be a program of it's own.- I don't know if my topic sentence is correct: One reason a program should be made separate for

115. Math

if a diameter of a quarter is 25 mm. what is the length of a row of quarters whose total value is \$10.00?

116. Statistics

On standard IQ tests, the mean is 120 and the standard deviation is 18. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 156.

1. Which way of asking for action carries the highest level of politeness? (Points: 5) A polite order An indirect request A question (*) An order 2. Which of the following statements most effectively applies the you-attitude? (Points: 5) "We began

118. physics

A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land?

119. physics

What is the weight of a 12 kg mass on the moon if the gravitational acceleration (g) was only .8 m/s/s?

120. college algebra

IF THIS WAS 1500 SQFT. WHAT WOULD IT LOOK LIKE.I have two small Yorkies that love to go outside and play, so being on a leash just doesn’t work for them. So I decided to get them a fence so they can play how they like too. I live in a townhouse, its 1600

121. organic chem

if sulfuric acid was not added to isopentyl alcohol how would that affect the results

122. Math

Tony lines up 5 baseballs. They are as long as his pillow. He adds 15 more balls. How long is the line?

123. science

what is the geometry around each carbon in ethanoic acid

124. computer science

I need to write a program that ask the student to enter an answer to a math problem. The user should enter two values, one at a time, and then ask for an answer. The program should display if the entered answer is correct or not and display the correct

125. algebra

there are 43 ribbions. the number of blue ribbions was 2 less than the number of white ribbions. the number of red ribbions was 3 more than the number of white ribbions.how many of each kind of ribbion was awarded

126. Chemistry

When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

127. Chemistry

When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

128. Math

Kara has 9 apples. Maria has 3 more apples than Kara. How many apples does Maria have.

129. Com arts

In the Book FareWell to Manzanar. What chapter did momma break her dishes?

130. sociology ASAP

EXAMPLES OF macro and micro sociology cannot be : prostitution gender inequality economy homelesness

131. English

why jake dislike how his father smile at his attempt and failure in physical activies? That be because he feel embarrassed?

132. Drama

My teacher wants us to think of short pantomimes that are easy. I am out of ideas. Can you give me some ideas please?

133. history

Every era in American history has had notable men and women who shaped their times, for better or worse. Identify one person from this week’s reading who you believe had a significant impact on the years from 1945 to 1974. This could include a president

134. english

Edit please. Take the errors out and rewrite Calligraphy is very popular amoung artists as well as among people whom are not professional artists. But who are creative for their own pleasure. The word calligraphy provides own definition. It comes from two

135. SPELLING

WHAT IS ACCEPT:EXCEPT::THREW I REALLY NEED HELP DO TOMORROW FREAKIN OUT

136. Science

During beta-particle emission, a neutron splits into _______? a proton and an electron two protons two electrons two neutrons

137. Math

How long does it take an automobile traveling in the left lane of a highway at 70.0 km/h to overtake (become even with) another car that is traveling in the right lane at 20.0 km/h when the cars' front bumpers are initially 110 m apart? s

138. English

am doing a parody project for Romeo and Juliet only ACT 5. I need to write a script for burger king or any ideas you have. I need help starting off the script. Thank You

139. math

how to you compare 8 fractions with different denominators including improper fractions?

140. math

If the scale of a map is 1:1000,a 10cm map has an actual length of ?

141. geometry

if line cd equal 2 and line xy equal 2, prove that line cd is equal to line xy

142. math

The rectangular base of a box has a perimeter of 60cm. The base is twice as long as it is wide. Saskia plans to cover the top and bottom with coloured paper;which cost 5 cents per square centimetre. She lans to cover the other 4 faces with white paper;

143. college chemistry

Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it! complete and balance the following equations 1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+ 2. Cr +Cu^2+ ---> CrO4^2- + Cu^+ 3. MnO2 + Ag^+ ---> MnO4^- +

1. Which way of asking for action carries the highest level of politeness? (Points: 5) A polite order An indirect request A question (*) An order 2. Which of the following statements most effectively applies the you-attitude? (Points: 5) "We began

145. chemistry

if 25.00 g of Zn reacts with 30.00 g MnO2 what mass of Zn(OH)2 will be produced?

146. english-personal growth

what is a personal growth paper?

147. trig

right triangle has an acute angle of 24.8 and an adjacent length of 145 what is the side opposite of the acute angle

148. math 12

The world's population is 1970 was about 3.6 billion. If the population has increased at 2% each year since then, what will the world's population be in 2010?

149. AP (Honors) World History

I need a good thesis statement for my continuity and change over time informative essay on Hinduism, but I don't know how to even start. Please help.

Is a trapezoid also a parallelogram? Explain why or why not.

151. MATH

Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

152. maths

A CIRCLE HAS EQUATION X^2 +4X + 10Y -8 =0,FIND THE EQUATION OF THE TANGENT AT (3,1)

153. physics

A roller coaster (375. kg) moves from A (5.00 m above the ground) to B (28.0 m above the ground). Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long

154. college chemistry

At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer

155. Math

Ian has 11 stickers justinhas 3 fewer stickers then Ian.how many stickers does Justin have.

156. English

What be meaning of allusion to hemingway’s death? He not feel he important to family?

157. English

Why Jake spend his time try to forget everyone? That be because his family not have proper relationship with him before so they not show him love and now he not know how to love so he want to be alone.

158. math

what is equivalent fraction of 9/10 and 7/12

159. Physics - Circuits

Theres a circuit wired in series that has 4 resistors. 1) 10 ohms 2) 6 ohms 3) 1 ohms 4) 2 ohms Find the potential difference across the 10ohm resistor. Answer in units of V What exactly am i supposed to do to calculate this?

160. Chemistry

What will be the concentration if 52 milliters of a solution that is 12 parts per million in sodium chloride is diluted with enough water to make 97 millilters of solution?

161. Chemistry/Engineering

A 25 gram sample of CT is vaporized and used to fill a 5 L container. If the pressure in the container is 1.2 atm at 27 degrees Celsius, what is the molecular weight of CT in grams per mole? I used PV=nRT and found n=.2437 mol, but how do I got to grams

162. science

a change in ph can change the shape of a protein. how might a change in ph

163. US History

The battle of New Orleans A. destroyed the Creeks Indian Tribe B. forced the British to sue for peace with the US C. cause the British to evacuate Washington D. led to a surge in American nationalism E. led to the development of sectionalism in America I

164. CHEMISTRY

Write equations for the solution process when ech of the following is dissolved in water. Potassium phosphate glucose Calcium chloride 1-propanol Butanone Ammonium sulfite

165. Civics

The Constitution gives sovereignty only to the _____.? A.State legislatures B.national government C.president of the United States D.State constitutions ....i need help, none of them are right?

166. Statistics

For each of the following (a) indicate how many factors are included, and (b) tell how many levels there are for each factor: a) 2x2 b) 2x3 c) 2x3x2 d) 4x3 e) 4x3x2x3

167. sociology

what are some examples of social and cultural capital that young children experience

168. English

what be theme of this story? move on with life? don't look back at past? also i not understand the title of story. i before thought orpheus be someone in story but it not be anyone.

169. math

In the U.S. a date such as January 12, 2003 is written 1/12/03, but in many other countries the day and month are interchanged, giving 12/1/03. If you didn't know which system was being used, how many dates in a year would be ambiguous to you?

170. college physics

what is the force applied in the direction of the wire at a point attached to the patient in a traction system if the mass applied ius equal to 5kg.?

Dear Ms. Sue, No matter how hard I try, nobody knows a 6th grade definition for the word "Panning". Can you please help?

172. English essay

Thesis is -Taking daughters to see their mothers in jail should be a program of its own.- I don't know if my topic sentence are correct: Negative affect on the amount of extra responsibility the girl scouts take on. Girl scouts has an age limit for not all

173. English

how am doing now can you help is it right (McDonalds)Romeo: How bright! What light bounces off the linoleum floors that my lover has cleaned! It is a flashlight, and Juliet is a firework! Get up, you spark and burn off the brown field which is already

174. Math

Can you check my work Please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000 1. Write down the formula for N(t) using the rounded values of a and P.

175. phl

Do influences like culture, environment, history, and nature have a liberating or limiting effect on individual freedom? Some specific examples.

176. math help!!

A cart carries 100 pounds of cucumbers. The cucumbers are 95% water, and during the day they lose water rapidly on a hot, dry day. After a day passes by, the cucumbers are now 90% water. How much much do the cucumbers weigh after drying out?

177. geometry

If the measure of angle AMD= x+2y and the measure of angle ABC= 2x-y, find the values of x and y.

178. Chemistry

How could you prepare a buffer if only acetic acid, HCl and NaOH are available? If you must have a weak acid and a conjugate base for a buffer, if the conjugate base is not available, how could one generate it? This makes no sense to me. Maybe I am

179. chemistry

a bird is flying around the world at a rate of 88ft/sec,how many days will it take to complete this journey?

180. physics

A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land? so using the equation h=1/2 gt^2 and i put in 15 for h and g is 9.8 so i solve for t. is this right and when do i use

181. Intermediate Algebra

The perimeter of a triangle is 48 centimeters. The longest side is 2 centimeters less than the longest side. Find the lengths of each side of the triangle.

182. chemestry

if 40 grams of water are produced when 30 grams of ethane is burned what is the % yields

183. ms. sue

ms. sue you read the book the glass castle a memoir by Jeannette Walls?

184. algebra. help!!

United States citizens living in Switzerland must pay taxes on their income to both the United States and to Switzerland. The United States tax is 28% of their taxable income after deducting the tax paid to Switzerland. The tax paid to Switzerland is 42%

185. Calculus

y=cos(square root of 4t+12)

186. Decorative Features

4. Which one of the following is rarely used for underwear? A. Faced-slit opening C. Bound opening B. Placket D. Zipper 5. When inserting a zipper, it’s important to A. insert it at the earliest possible sewing stage. B. stretch the fabric to match the

187. Civics

Since the 1970s, the Supreme Court has interpreted the Equal Protection Clause as prohibiting the government from making "_____" distinctions between people. unreasonable =racial reasonable unnecessary

Find an equation of the line that is tangent to the graph of f and parallel to the given line. Function Line f(x) = 2x^2 6x – y + 4 = 0 I know i have to find derivative 1st which will be f'(x)=4x but then how to i find equation do i plug 6 in for x so

189. English

Jake tell that some families grow like trees.... to what does he compare his own family? what be im plied by this comparison? Do he express this symbolic meaning explcitly ? it be that he tell his family not close with each other. everyone be far apart

191. English

What can be understood frm the fact that jake’s daughter faces the trail as though waiting? i not get this. it be that she going to know about jake's family also?

192. Chemistry

When a 77 g piece of metal with a temperature of 88 Degree Celsius is placed into 277 g of water having a temperature of 20 degree Celsius, the final temperature of the metal and water is 23.3 degree Celsius. What must be the specific heat of the metal?

193. math

In the space below, indicate the values stored in the variables A,B,C, and D for the program. Enter your answers by typing in the value of A for Answer 1, value for B in Answer 2 and so on. Do this for all four variables.(8 points) 10 DATA 2,3,4,5 20 READ

194. CAN ANYONE HELP WITH MATH

HELP PEOPLE WHO NEED HELP WITH MATH PLEASE

195. biology

Can someone please explain to be the concept of - Rate of exchange is proportional to a cells surface area and ... the amount of exchange material is proportional to a cell's volume. (the topic we are learning is called "Animal form and function")

196. Finance

What is the economic value today of each of the following payment streams if money can earn 7.5%?(Note that the two streams have the same total nominal value.) a. \$1000, \$3000, and \$2000 due in one, three, and five months, respectively. b. Two \$3000

197. algebra

A pentagon has a perimeter of 630 inches.What is the length of its sides?

198. Calculus

What is the derivative of 6/x?

199. English

Jake tell that in long ago when his father offer things in same tone as question he ask which be “You , comin jake?, he regularly refuse. Why he do this? That be because he giving orders not asking nicely?

200. Human Body

Identify one factor that can decrease and one factor that can increase your lympathic and immune systems' abilities to fight off illness and disease

201. physics

an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

202. Math lit

Add the missing terms so that these quantities are in proportion. _:11:_and 11:121:11. And this one 26:52:13 and _: _:1

203. physics

an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

204. Bio

Does hyaline cartilage have fibers in it?

205. Chemistry

How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?

206. English

I have write a evaluation essay on the movie Troop 1500. So my thesis is -Taking daughters to see their mothers in jail should be a program of it's own.- I don't know if my topic sentence is correct: One reason a program should be made separate for

207. English

jake say that aftr today he have to start making some phone calls or have phone removed. what he mean? that mean that he have to face people or be lonely forever?

What does it mean to say "I don't want to sound to hostile"???? Please answer in small words so that I can understand, sorry if that sounds rude but I am dyslexic.

209. CHEMISTRY

What will be the concentration if 52mL of a solution that is 12ppm in sodium chloride is diluted with enough water to make 97mL of solution?

210. civics

_____ States supported the _____ Plan, which called for a bicameral legislature in which States would be represented according to their population. Slave, Three-Fifths =Larger, Virginia Northern, Connecticut Smaller, New Jersey

211. Spanish - beginner

Does it sound right? Tengo un primo como vive en España, Madrid, cerca Puerta del Sol. Es mi primo Fabian y tiene diecinueve años. Es de España pero no habla español. Fabian te gusta esciar. Mi primo ha tenido dos gatos azules pero hemos morido ayer

212. Natural Science

Where do the shortest wavelenghts accur ?

what is an easy definition for the word "accent"?

214. Algebra 1

Whats: -3 < j + 2 < 7

215. chemistry

Q1) For the reaction, A ¨ B, ƒ¢H‹ = +11.00 kJ mol-1 and Keq is 12.50 Calculate i) ƒ¢G‹ and ii) ƒ¢S‹ at 25 ‹C. [0 ‹C = 273.15 K; R = 8.314 J K-1 mol-1]

216. English

what be painful realization made by old man at end of his life? he not able to give love? i thought he not die, he just walk inside home.

217. math

i tried to simplify 10/8 i got the answer of is 2/4 am i correct

218. math

If there are 75 animals in a pet store and a pie graph shows 16% are cats how many of the animals are cats

219. English

In last paragraph how author emphasize lack of love in old man? i not get this. i also not get ending which be The old lady was waiting for us on the path. He walked straight toward her voice. I felt the pinch of her words and fell behind. The man walked

220. math

how can i make a fraction into a pound

221. grammar

what is the direct object in the head of the stables often mistreated agba and the young colt

222. Spanish - beginner

How do I say: He always smells like garlic. Is it: Siempre huele como ajo. /sorry for my english

224. Civics

Which is NOT true of the segregation laws passed after the Civil War? =They prohibited interracial marriage. They did not only apply to blacks. They were only in the South. All of these statements are true.

225. Math Help Desperate...

Thank you very much for answering the candy question last night.

226. Math Help Desperate...

Thank you very much for answering the candy question last night.

227. math

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools

228. Science!

When many gene pairs work together, this is called......? Help!!!!! Please!!!!!

229. calculus

Find the surface area generated when y = (x^3/12) + (1/x), from x=1 to x=2 is rotated around the x-axis.

230. Physics

Pepper pulls a 20.0 kg object along the floor accelerating at 2 m/s/s, and μ = .2. How much work has he done while pulling the string 5.0 m? If it takes her 1.0 seconds, how much power has she used? If 1.0 kcal = 4184 J, and an Oreo has 50 kcal, how many

231. Physics

A block (m = 38.0kg) sits on an inclined plane of 38 degrees. If there is no friction,k what magnitude force is needed to keep the block from sliding? If there is friction, with coefficients 0.580 and 0.630, what is the maximum magnitude force that can be

232. Math

Explain how you can use division by a fraction to figure out how many 4-oz are in 3 lbs

233. statistics

Select a sample of 20 individuals and the test the hypothesis =225 for IQ level. Use a=0.05

234. math

Open boxes are being designed to hold mail for the post office. The boxes will be made to have the greatest possible volume. Each box will be made from a sheet of metal that measures 15 inches by 12 inches. They will be formed by cutting and removing a

235. Calculus

For each function, find the derivtive f'(a) for given value of a f(x) = sqrt(x+1), a=0

236. CHEMISTRY

Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it! complete and balance the following equations 1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+ 2. Cr +Cu^2+ ---> CrO4^2- + Cu^+ 3. MnO2 + Ag^+ ---> MnO4^- +

237. Algebra/ Precal

Sales= S(thousands) t=yrs S=100(1-e^(kt)) k=0.035 How many units were initially sold? How many were sold after 10yrs?

Can a rectangle also be a rhombus? Explain

239. algebra

How can you tell the difference between independent, dependent, and inconsistent

240. Math

What Is \$90 For 40 minutes Is How Much For 60 Minutes? What Is The Answer To This Question.

241. education

What is meant by the term global community? Give an example of how you can participate in the global community as a classroom teacher.

242. education

Do you feel that technology helps or hinders parents in becoming more involved in their students' education? Why?

243. English

what be jakes opinion of honesty of adults? adult not be honest enough to admit how they feel?

244. Economics

If the federal government enacts a tax on a monopoly, how would you expect the additional tax to affect the following: 1. Output produced by the monopoly 2. Prices charged by the monopoly 3. Profits of the monopoly

245. physic

what is thermometer

246. English

I need to write two short paragraphs. The first should be a description of the uses of a mobilie phone (I use my mobile phone to ......... It has got..... /functions ) The second should contain useful expressions needed when buying a mobile phone? Could