candy

Most popular questions and responses by candy
1. CHEMISTRY

HOW CAN U TELL IF HNO3 +KNO3 IS A BUFFER SOLUTION A buffer solution must contain a weak acid and its conjugate base OR a weak base and its conjugate acid. HNO3 is a strong base and KNO3 is the salt of a strong base (KOH) and a strong acid (HNO3);

2. Math

Lesson 8: Mean, Median, Mode, and Range Math 7 A Unit 2: Decimals and Integers 1: FIND THE MEAN OF THE DATA SET 9,4,7,3,10,9 A: 6 B: 7 C: 8 D: 9 2: FIND THE MEDIAN OF THE DATA SET: 9,6,7,3,10,9 A: 6 B: 7 C: 8 D: 9 3: FIND THE MODE OF THE DATA SET:

3. chemistry

What are the products of the reaction between nitrous acid and strontium hydroxide?

4. Language Arts

At the end of her aunt's story in "The Story-Teller" the older girl ask whether the girl in the story would have been rescued even if she had not been good. What does she seem to think the theme of her aunt's story? What detail in the aunt's story leads

5. Math

A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96

6. Chemistry

A solution of I2 was standardized with ascorbic acid. Using a .1000 g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. A. What is the molarity of the iodine solution? B. What is the titer of the iodine solution?

7. math

simplify 10P4 210 360 5,040 151,200 I think 360

8. Math Help me PLZ!

1: What is the median of the data set: 25,8,10,35,5,45,40,30,20 A:10 ~ B:22.5 C:25 D:27.5 2: What is the upper quartile of the given data set: 25,8,10,35,5,45,40,30,20 A:35 B:37.5 ~ C:37 D:40 3: What is the lower quartile of the given data set:

9. MATH 7

1: What is the median of the data set: 25,8,10,35,5,45,40,30,20 A:10 ~ B:22.5 C:25 D:27.5 2: What is the upper quartile of the given data set: 25,8,10,35,5,45,40,30,20 A:35 B:37.5 ~ C:37 D:40 3: What is the lower quartile of the given data set:

10. physics

the terminal velocity of a tennis ball is about 21 m/s. a tennis ball is dropped from a hot air balloon. how fast will it be moving after falling for 10 s? 21m/s, 77m/s, 9.8m/s, or 98m/s.

11. Math

Given that rectangle mnop ~and rectangle STUV what is the length of TU

12. Math

Solve each equation by using the properties of equality. Check. 4x – 18 = 65

13. Chemistry

The combustion of methane gives carbon dioxide and water. CH4 + O2 --> CO2 + H2O For state symbol of water, is it liquid state or gaseous state?

14. Calculus

A ball is thrown from the origin of a coordinate system. The equation of its path is y = mx - e^2m/1000 . x^2, where m is positive and represents the slope of the path of the ball at the origin. For what value of m will the ball strike the horizontal axis

15. Chemistry

A solution of I2 was standardized with ascorbic acid. Using a .1000 g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. A. What is the molarity of the iodine solution? B. What is the titer of the iodine solution?

16. Chemistry

Are the following chemicals light sensitive? 1) Potassium Iodide (KI) 2) Sodium thiosulphate (Na2S2O3)

17. Chemistry -pls help urgent

1) How do I prepare 2M nitric acid from 65% concentrated nitric acid? 2) How do I prepare 17% ammonia from 25% concentrated ammonia? Please show calculation steps. Thanks.

The director of admissions at a large university says that 15% of high school juniors to whom she sends university literature eventually apply for admission. In a sample 0f 300 persons to whom materials were sent, 30 students applied for admission. In a

19. Calculus

A box with an open top is to be made from a square piece of cardboard by cutting equal squares from the corners and turning up the sides. If the piece of cardboard measures 12 cm on the side, find the size of the squares that must be cut out to yield the

20. History

Which of the following best describes attitudes in Germany after World War I

21. World history

What is the significance of England's defeat of the spanish Armada?

22. Calculus

A closed box is to be a rectangular solid with a square base and volume of 12 ft^3. Find the most economical dimensions if the top of the box is twice as expensive as the sides and bottom.

23. Physics

A penny is dropped from the observation deck of the Empire State building (370 m above ground). With what velocity does it strike the ground? Ignore air resistance. answer is in____ m/s.

24. Social Studies

What are the causes of problems the Mayas and other Native American groups face in Guatemala? How are people trying to solve these problems?

25. English

What is the thesis statement for the song "Firework" by Katy Perry?

26. Ethical Theory, Business Practice, and the Corpora

Speedy Motors Company (SMC) gave less than a month notice before they laid off nearly 2,000 workers and closed the facility. This facility had been providing jobs for the community for over 20 years. Terms of the close - what notice would you give, what

27. Biology

What three things must be known to perform radiometric dating?

28. Physics

A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. The crest of the second hill is circular, with a radius of 38.3 m. Neglect friction and air resistance. What must be the height

29. Algebra 11

What do you call it when someone pays back a loan quickly? Someone tell me i don't know the answer!! Prepayment

30. Physics

Two identical cars (m = 1350 kg) are traveling at the same speed of 23.9 m/s. They are moving in the directions shown in the drawing. What is the magnitude of the total momentum of the two cars?

31. Calculus

The strength of a beam with rectangular corss-section is directly proportional to the product of the width and the square of the depth (thickness from the top to bottom of the beam). Find the shape of the strongest beam that can be cut from a cylindrical

32. Math

Which ofThe following statements is true All similar figures are also congruent figues

33. Long term planning

You would like to begin (or increase) your savings for retirement. What types of retirement plans (401 ks, IRA, etc.) might be best for your personal situation? Be sure to explain the plan you are interested in and why this is best for you. Please help! :

34. Physics

A high-jumper clears the bar and has a downward velocity of -6.00 m/s just before landing on an air mattress. The mass of the high-jumper is 50.4 kg. What is the magnitude and direction of the impulse that the air mattress exerts on her? Assume that upward

35. Science

Which of the following equations is balanced correctly? A. 3 H20 = H2 + 3 O2 B.2 C2H2 + 5 O2 = 4 CO2 + 2 H2O C.Cl2 + 2 KBr = KCI + Br2 D. 2 C3H3 + O2 = 2 CO2 + H2O

36. chemistry

Which will make you more wealthy, one mole of pennies (6.02e23 pennies) or one mole of gold atoms (6.02e23 atoms)?

37. drawing

21) The number of oil spills occurring off the Alaskan coast A) Discrete B) Continuous Find the odds. 22) When a single card is drawn from an ordinary 52-card deck, find the odds in favor of getting a red 10 or a black 6. A) 2: 25 B) 1 : 13 C) 1 : 25 D) 1

38. Physics

A penny is dropped from rest from the top of a very tall building. Assuming the height of the building is 406 m and ignoring air resistance, find the speed with which the penny strikes the ground.

39. Algebra

The heat generated by a stove element varies directly as the square of the voltage and inversely as the resistance. If the voltage remains constant, what needs to be done to triple the amount of heat generated? I need to know why this makes sense or not.

40. Algebra

Find the degree of each monomial -3

41. Cost Accounting

The accounting records of Nu-tonics Inc., include the following information for the year ended December 31, 2013: Materials Inventory as at 1 January 2013 \$ 20,000 Materials Inventory as at 31 December 2013 \$ 24,000 Work in process Inventory as at 1

42. English

Are these correct? Here, I am supposed to label the sentences interrogative,exclamatory,imperative, and declarative. Then, I have to put the correct punctuation mark beside it. 1.Look at the apes Look at the ape (imperative) 2. How clever they are How

43. Chemistry

Metals above hydrogen in the reactivity series react with dilute hydrochloric acid or dilute sulphuric acid to give metal chloride + hydrogen. 1)Is it correct to say that we use dilute acid,not concentrated acid because the reaction can take place with

44. Math

I can not figure out this problem can you please help me solve it? Emma made a rectangular picture frame with the height of 25 5/6 inches. The frame is 5 2/3 inches wide. What is the height of the picture Emma placed in th picture frame? Explain how you

45. history

What was the significance of Zheng He's voyages of exploration? What was the significance of Columbus's voyages of exploration?

46. chemistry

Which molecule or compound below contains a polar covalent bond? Student Response A. NCl3 B. C2H4 C. ZnS D. AgCl E. LiI

47. math

Write the answer to the problem as an algebraic expression. A theater ticket for adults is a dollars and the price of a child's ticket is C dollars. If 29 adults and 45 children attend the theater one night, how much money did the theater make? 29a + 45c

48. Chemistry

When drawing the 'dot and cross' diagram to show the ionic bonding in aluminium oxide, Al2O3, do we place the nos "2" and "3" in front of the brackets containing the 'dot and cross' diagram, e.g 2[Al]3[O]? I notice that some books place the "2" and "3" as

49. Math

How do I find the value of x if The quadrilateral is 60° 80° 128 help do I add sides for 268?

50. Math

An arithmetic sequence has a first term of 0 and a 10th term of 15. If 10 is an output of the sequence, which term number is it? Show and explain how you know you have the correct answer.

51. Chemistry

This is a limit test for chlorides. 1.0g of NaOH sample was dissolved in 5ml of deionized water, acidified with 4ml of concentrated nitric acid (65%) and diluted to 15ml with deionized water. (Test tube A) 10ml of 50ppm Standard NaCl solution was prepared.

52. Physics Help!

Q.1:What would a drummer do to make the sound of a drum give a note of lower pitch? a.hit the drum skin with a larger force. b.hit the drum skin with a smaller force. c.hit the drum skin nearer the edge. d.loosen the drum skin. d will work.

53. World history

What benefits might absolute monarchs hope to gain by increasing their countries' territory?

54. Algebra

For the fundraiser, will sold 225 candy bars.he earns \$1 for each almond candy bar he sells and \$0.75, how many of each type of candy bar did he sell for the fundraiser? solving systems using elimination

55. physics

A skier slides horizontally along the snow for a distance of 22.3 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is 0.0500. Initially, how fast was the skier going?

56. Unit 4 memory, thinking, and intelligence

In this activity, you can replicate Sternberg et al.'s initial study by having your students list behaviors that are associated with academic and everyday intelligence. Ask your students to take out two sheets of paper. Tell them to label the first sheet

57. SS

1. To all white Southerners, except Confederate leaders, Lincoln offered (1 point) amnesty. reconstruction. freedom. the Ten Percent Plan. 2. What agency helped freed African Americans by establishing schools? (1 point) Reconstruction Bureau Wade-Davis

58. history

What 2 languages created the swahili language?

A balloon isin the vertical plane of two consecutive milestones of a road. The angles of depression of the stones as viewed from the balloon are 15 degrees and 17 degrees. Find the height of the balloon if (a) the stones are on opposite sides of the

60. Biology

Could two humans (or two cows) have some differences in their DNA sequences for insulin, yet still make the exact same insulin proteins? Explain.

61. Geometry

Write the ratio of the first measurement to the second measurement. Diameter of care tire:40cm Diameter of care tire:18mm I'm not sure hoow to do this. May someone explain how to do this problem.

62. World history

In what ways did Louis XIV cause suffering to the french people?

64. Algebra 1

The area of a rectangular floor is 8x+6x-20. The width of the desktop is 2x+4. What is the length of the floor?

65. Finance

Company A wants to issue new 20-year bonds for needed projects. The company currently has 10 percent coupong bonds on the market that sell for \$1,063, make semiannual payments, and mature in 20 years. What coupon rate should the company set on its new

66. statistics

If weight in the general population is normally distributed with an average of 160 and a standard deviation of 20 pounds, what is the probability of selecting someone who weights 120 or less or 170 or more pounds?

67. Algebra 1

2k^2-13k-24 Factor the expression..

68. Calculus

Two ships are leaving port at the same time. The first ship is sailing due east at 20 km/hr and the other due north at 15 km/hr. How fast are the ships moving away from each other 2.0 hr later?

69. Physics

One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill. Determine the number of joules

70. Physics

A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 73.0-kg water-skier has an initial speed of 7.1 m/s. Later, the speed increases to 10.9 m/s. Determine the work done by the

71. physical science

A butterfly at eye level is 18 cm in front of an plane mirror. You are behind the butterfly, 45 cm from the mirror. What is the distance between your eye and the image of the butterfly in the mirror?

72. Business Environment and Recording Transactions

Give an example of a business transaction that has the described effect on the accounting equation: Increase an asset and increase a liability. Increase one asset and decrease another asset. Decrease an asset and decrease owner's equity. Decrease an asset

73. Algebra

show a graph that best represents a first-degree polynomial p(X).

74. Calculus

A cicular metal plate is being heated and expands so that its radius increases at the rate of 0.25 mm/min. How fast is the area increasing when the radius is 10 cm?

75. Physics

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 73 kg, and the height of the water slide is 12.0 m. If the kinetic frictional force does

76. Chemistry

1) When calcium is reacted with cold water, the equation is as follows: - Ca(s) + H2O(l) -->Ca(OH)2(aq) + H2(g) Isn't Ca(OH)2 insoluble? Why is the state symbol aqueous? When I conducted the experiment in a test tube with cold water, I got a white

77. Unit 5 Behavior Across the Lifespan

Give a description of Erikson’s theory, including the stages of development using the criteria listed above. 2. Identify a character at each stage. 3. Choose three of the following studies found in the Library article search engine Psychology and

78. Unit 5 - Group project

Your group has been hired by an advertising firm that is developing a series of commercials for family-oriented products geared toward the entire family. They want to develop a series of commercials that will target family members at various life stages.

79. math

Which of the following equations represents the line that passes through the point (0, -6) and that is parallel to the line x - 4y - 5 = 0? A x -4x - y - 6 = 0 B x 4x - y - 6 = 0 C x x - 4y - 24 = 0 D x x - 4y + 6 = 0

80. Math

You are looking at a map with a scale of 1 inch equals 50 miles. If two towns are separated on the map by 8 ​inches, what is the actual distance between​ them?

81. algebra

Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75

82. Calculus

The total charge in an electrical circuit as a function of time is given by q=t/(t^2+1) coulombs. Find the maximum charge of q.

83. Physics

A 279 N force is pulling an 75.9-kg refrigerator across a horizontal surface. The force acts at an angle of 26.3 ° above the surface. The coefficient of kinetic friction is 0.259, and the refrigerator moves a distance of 9.14 m. Find (a) the work done by

84. Chemistry-help needed

Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

85. Chemistry - pls help

This is a limit test for chlorides. 1.0g of NaOH sample was dissolved in 5ml of deionized water, acidified with 4ml of dilute nitric acid and diluted to 15ml with deionized water. (Test tube A) 10ml of 50ppm Standard NaCl solution was prepared. 5ml of

86. Physics

An airplane lands and starts down the runway at a southwest velocity of 43 m/s. What constant acceleration allows it to come to a stop in 1.2 km?Answer is in ___ m/s2.

87. Chemistry

Which is most polarized noble gas? 1-Krypton 2-Xenon 3-Helium 4-Neon. I think the one with the highest atomic number would be the most polarized one. Just a thought.

88. Biological Influences

Benjamin O'Henry has owned and operated O'Henry's Data Services since its beginning ten years ago. From all appearances, the business has prospered. In the past few years, you have become friends with O'Henry and his wife. Recently, O'Henry mentioned that

89. History

What were the pros and cons of the U.S. gaining Oregon? Also, What were the pros and cons of the U.S. gaining Gadsden Purchase?

90. statistics

Assume that the regression equation for the relationship between SAT scores and IQ scores is y = 9 +.105x. What would you expect the IQ score to be for the following individuals, given their SAT scores? Individual SAT Score IQ Score Susan 850 Sally 1175

91. Algebra 1

6t^2+21t-12 Factor the expression I don't know how to figure it out

92. Algebra

The sum of two numbers is 19, and their difference is 55. What are the two numbers? Solving systems using elimination

93. Chemistry help asap

I need help with this ideal gas law problem I know how to set the equation up but I'm not getting the correct answer. How many moles of gas can be contained in a 1.44 L flask at 32Celsius and 93.5kPa?

94. Calculus

Water reaches its maximum density above its freezing point. The volume V (in cubic diameters) of 1 kg of water at temperature T between 0 degrees C and 30 degrees C can be approximated by the formula V=999.87 - 0.06426T + 0.0085043T^2 - 0.0000679T^3. Find

95. Chemistry-help needed

0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is

96. Chemistry-help

I am rather confused about writing ionic equations. 1) SOLID sodium carbonate reacts with hydrochloric acid to give NaCl,CO2 & H2O. Is the ionic equation CO32-(aq)+2H+(aq)-> CO2(g) + H2O(l)? Do I consider SOLID sodium carbonate to be in aqueous state since

97. Chemistry

During fractional distillation of ethanol/water mixture, why can't pure ethanol be obtained (i.e. distillated contains a little water)?

98. Chemistry

Hi Dr Bob, I understand the 2nd method but need to clarify the 1st method.If I only wish to draw 1 Al and 1 O, then I need to include the "plus" sign and draw the 'dot and cross' diagram as 2[Al]+ 3[O] , with the charges of course, right? Posted by candy

1) Metals that are above hydrogen in the reactivity series react with dilute hydrochloric acid to produce hydrogen gas. Lead is just above hydrogen in the reactivity series.I read a book that says no reaction occurs between lead & dilute acid. Why? Is it