# Questions Asked onMarch 4, 2016

1. ## chemistry

Consider the unbalanced reaction Ti(s) + Cl2(g) --> TiCl4(s) When 10.3 g of Ti react with 12.7 g of Cl2, 16.2 g of TiCl4 are obtained. The theoretical yield of TiCl4 is , the limiting reactant is and the percent yield is %. (Remember to use correct sig

2. ## Chem

Write the formulas of the compounds formed by Pb4+ with the following anions: CN−, ClO3−, SO42−, H2PO4−.

3. ## Calculus

Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate I know that they grow at the same rate because they are both raised to the same power, but i don't know how to show it.

4. ## Algebra

Eli will photograph a wedding for a flat fee of ​\$840 or for an hourly rate of ​\$180. For what lengths of time would the hourly rate be less​ expensive?

5. ## math

A woman wants to take her fox, chicken, and bag of corn across the river in her canoe. The canoe can hold only the woman and one additional item. If left alone, the fox would eat the chicken, or the chicken would eat the corn. How can the woman take

6. ## Physics

Two boxes are connected by a light string that passes over a light, frictionless pulley. One box rests on a frictionless ramp that rises at 30° above the horizontal (see the Figure below), and the system is released from rest. (a) Which way will the 50kg

7. ## Language Arts :o)

1. What is the best paraphrase of these lines from "Paul Revere's Ride"? And the spark struck out by that steed in his flight, kindled the land into flame with it's heat. A. Sparks from Paul Revere's horse started a brush fire. B. Paul Revere's horse

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8. ## Health

1. Long-term risks of smoking include (choose 3) A) bad breath B) lung cancer** C) emphysema** D) cardiovascular disease**

Help Please Can u check my answers? < = my answer If you do not experience some pain from your workouts, you are probably wasting your time: A.myth < B.fact You should still watch what you eat when you are exercising, in order to maintain a healthy weight:

10. ## math

Tom built a fence around his rectangular shaped pool. The posts are 2 yards apart, there are 4 posts along the width and 8 posts along the length. What are the dimensions of the fence?

11. ## math help pls pls pls

Tablets are on sale for 15% off the original price (t), which can be expressed with the function p(t) = 0.85t. Local taxes are an additional 8% of the discounted price (p), which can be expressed with the function c(p) = 1.08p. Using this information,

12. ## Math

I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi

13. ## Science

When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom. B. The oxygen atom donates an electron to ach hydrogen atom. C. A pair of electrons is shared at

14. ## English

Fix the sentence by following the apostrophe rule. The books story was pretty exciting, even though its cover was not. a. The books' story was pretty exciting, even though its cover was not. b. The book's story was pretty exciting, even though it's cover

15. ## English

Fix the sentence by following the apostrophe rule. Strong childrens education is essential to the progress of any nation a. Strong childrens' education is essential to the progress of any nation. ***b. Strong children's education is essential to the

16. ## Algebra

There are 72 questions on a college entrance examination. One point is awarded for each correct​ answer, and one third of a one third of a point is deducted for each incorrect answer. How many questions does Tami need to answer correctly in order to

17. ## Trig

Solve for [0,2pi) 2cos4x + sqrt3 = 0

18. ## Chemistry

How does the potential energy of the reactants compare to the potential energy of the products in an exothermic reaction, and where does the energy that is given off come from? Explain your answer in complete sentences.

19. ## English

Identify the type of dramatic speech that is given by one character addressing other character(s) for a relatively long amount of time. dialogue solo monologue I think it is monologue Is this correct? Thank you for your help.

20. ## Math

Every few minutes, Cindy measures the height of water, in inches, in a bucket while it is being filled at a constant rate. She makes a graph of her results. Two points on her graph are (5,6) and (8,9). Meanwhile, Ben is draining another bucket of water at

21. ## statistics

Find the number of different selections of 4 letters from the 9 letters of the word HAPPINESS which contain no P's and either one or two S's.

22. ## Math

While remodeling the house,you will have 3 choices of paint color,4 choices of carpet color and 5 choices of furniture style.How many different groups will you be able to make using one paint color,one carpet color and one furniture style? (A) 20 (B) 50

23. ## Chemistry

Explain, in terms of collision theory, how and why a reaction’s rate changes as the reaction progresses.

24. ## math

3/4 of the girls in a 3rd form class play netball and 4/7 play volleyball . Every girl plays atleast one of these games. If 27 play both games,how many girls are there in the 3rd form

25. ## Physics 2

Two boxes are connected by a light string that passes over a light, frictionless pulley. One box rests on a frictionless ramp that rises at 30° above the horizontal (see the Figure below), and the system is released from rest. (a) Which way will the 50kg

26. ## English

Correct the following paragraph so that it uses the right words and includes appropriate apostrophes. Tomorrow, its supposed to be hot outside, so your going to have to wear sunblock. Youre skin will be safer with brands of sunblock that offer several

27. ## Chemistry

A solution is prepared by adding 45.0g of Na2SO4*6H2O to pure water to make 150mL of solution. What are molar concentrations of these ions in the resulting solution? Sodium Ion? Sulfate Ion? Phosphate Ion? I've determined the solution is 1.2M

28. ## chemistry

1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please use these values: Heat of fusion = 334.16 J g¯1 Heat of

29. ## Biology

Multicellular organisms use a variety of communication methods to coordinate cell function. Choose ONE of the following examples below and describe the cell-to-cell communication that occurs, and then describe the types of responses that result from this

The school carnival is divided into sections. The dunk tanks are in 1/10 of the carnival. Games are in 4/10 of the carnival. Student exhibits are in 5/10 of the carnival. what fraction is dunk tanks and games

31. ## Chemistry

Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experimental data provided. Q + X yields products Trial [Q] [X] Rate 1 0.12 M 0.10 M 1.5 × 10-3 M/min 2 0.24 M 0.10 M 3.0 × 10-3 M/min

32. ## English

I'm worried about my math. 1. Why don't you buy a math self- teaching book and solve math problems a lot. 2. Why don't you buy a math self-study book and solve math problems a lot. 3. Why don't you go to a math academy and study math more? 4. Why don't ask

33. ## algebra

the total was 29.00 after adding a 4,00 tip to the bill for a family of five, each of whom ordered a hot dog. what was the price of a hot dog? A. 4-5x=29;\$5.00 B. 4+5x=29;\$5.00 C. 29-5x=4;\$5.00 D. 5x=29=4;\$5.00

34. ## English

Which class are you in? ==================== What is the similar sentence to the previuous one?

35. ## US history

The gadsden purchase enabled the united states to do which of the following? A. gain access to important natural resources in the southwest B. increase crop production in the southwest C. link to the southwest by railway system D. provide better defenses

36. ## Maths

3. Which of the following examples would show a negative trend? A) height and weight of students B) test scores and height of students C) outside temperature and heating bill D) none of these 4. The scatter plot below shows the relationship between the

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37. ## LA

for the critical review essay you are to choose two poems, short stories, essays, or novels. Whatever you choose they must have a similar theme. State the theme for both stories in your introductory paragraph. In the body paragraphs provide text based

38. ## Chemistry

I've been stuck on this question for awhile now. I'm having a lot of trouble figuring out how to start it. If you had added exactly 20.00 mL do d.i. water before the titration, calculate the molar concentration of OAc- would have been at the end of the

39. ## Statistics

Imagine you're a researcher and you need to perform a one-sided test of an alternative hypothesis. You decide to conduct a significance test at the .05 level. Which of the following ranges of z-scores would make the test statistic significant at .05

40. ## World Geography

How has the region attempted to change its future so that they will be less dependent on oil wealth in the coming decades? A. By improving education B. By increasing government control in the economy C. By ceasing to export oil to other parts of the world

41. ## English

Where should commas be added in the following sentence? “Three Skeleton Key” got its name as the narrator tells us from three escaped convicts. A. after got and us B. after name and us C. after as D. after three I know it's not A. and D.

42. ## Math

The 8th term of 40,10, 5/2, 5/8

43. ## chemistry

Given: 3H2(g) + N2(g) 2NH3(g) If the reaction starts with 0.500 mol of H2, how many atoms of hydrogen in the compound NH3 would you expect to make?

44. ## Math Trigonometry

A bus driver driving south along a highway is 16 km from the nearest city. After traveling a distance of 32 km, the driver finds he is 19 km away from the same city. Find the bearing of the town from the second position of the motorist.

45. ## History

What happened to the Republicans in South Carolina as a result of the election of 1876? -They worked with the redeemers for the common good of the state. -They seized control of the government with the help of the U.S. Army. -They maintained control of the

46. ## health check my answers

1. the type of medical professional who makes sure your eyes are healthy and free of disease is a(n) A. nutritionist. B. oncologist. C. ophthalmologist.

47. ## math and algebra

on the number line below locate and label the points the represent the rational numbers listed in part (a).Describe the relationship between these two numbers.Zero on the number line represents Isaac's balance before the mistake was made

48. ## Biology

Describe a specific type of chemical or audible communication used by animals to respond to an external stimulus and the resulting change in behavior. Explain how this type of communication may relate to natural selection within a population.

49. ## Biology

Describe what you observed in the hands-on animal behavior lab. What conclusions did you draw from the data? Explain your answer.

50. ## Calculus

Find the range of the function ∫sqrt(4-t^2) dt where a=0 =x [0, 4π] [0, 2π] [-4, 0] [0, 4]

51. ## How do I become a tutor?

Hi! I was wondering if someone could tell me how to become a tutor.

52. ## Chemistry

Which reaction did you perform in the hands-on activity? Describe the chemical combination that you investigated. Also describe any observations from the investigation, including the temperature change of the container.

53. ## LA

1. It shall flash through doing ages, 2.It shall light the distant years; 3.And eyes now dim with sorrow 4. Shall be brighter through their tears 5. It shall flush the mountain ranges, 6. And the valleys shall grow bright; 7. It shall battle the hills in

54. ## trig

A wheel with a 22 inch diameter is turning at the rate of 31 revolutions per minute. What is the linear speed of a point on the rim, measured to the nearest inch per minute?

55. ## Discrete Math (function and similar triangles)

I need to show that (0,1) and (10, infinity) have the same cardinality. Can I use similar triangles with open intervals? For example, I defined the open interval (10, infinity) to be on the positive x-axis and (0,1) to be on the positive y-axis. Then I

56. ## Chemistry

A match must be struck against an object to produce a spark to start the burning process. Once the match starts burning, it releases a large amount of energy. Describe, in detail, what the potential energy diagram would look like for the burning of a

57. ## History

Which word is the best synonym for the term land grant? A.gift B.loan*** C.sale D.lawsuit My answer***

58. ## History

What is one benefit of reservation life? A.Schools on reservations are unusually good because of their small class sizes. B.Native Americans can practice their traditions and culture with others who share them. C.Most Native American reservations are in

59. ## Math

How do i solve for b, 5=2pi/b

60. ## chemistry

what chemical changes are responsible for the color changes in the red cabbage lab?

61. ## Calc

Integrate (x+4)/(x^2+5x-6). I got 2/7ln(x+6)+5/7ln(x-1). But wolfram says 2/7ln(x+6)+5/7ln(1-x). Why is it 1-x instead of x-1??

62. ## chemistry

how to find the mole ratio of salt to water of Mo(NO3)2.5H2O CaSO4.2H2O (CaSO4)2.H2O

63. ## Trig application

A man is holding a gun 4 feet above the ground and fires into an open field. The bullet has an initial velocity of 300 feet per second and an initial angle of 30°. Find the range (the horizontal distance traveled before hitting the ground ) and the

64. ## Socials-writeacher

Thanks so much for help with last question my question abt Magna Carta is same about anxiety it give and what be the goal. I say the goal be to eliminate kings power and divide that power amongst nobles and anxiety be that it didn't give ordinary people

65. ## English

1. Do you have any experience in public speaking? 2. Do you have any experience on public speaking? 3. Do you have any experience of public speaking? =============== Are all the prepositions used? Which preposition is correct?

66. ## Math Algebra Intermediate

How do I Factor the expression a y - a^{6} y^{6} ?

67. ## Calculus with Analytical Geometry

1. A bullet is shot upwards with an initial velocity of 1000 ft/sec from a point 20 ft above groand its height above the ground at time t is given by h(t)=-16t^2 + 1000t + 20. How high will the bullet go and how long will it take the bullet to reach the

There are two 1's, two 2's, and two 3's. There is one digit between the two 1's, there are two digits between two 2's, and there are three digits between the two 3's. Holding number cards, can you duplicate this sequence of numbers? Can you continue this

69. ## Science Problem Plz Help

A charge q1=7.00 x 10^-6 is placed 0.300m from a second charge q2=-5x10^-6 C. Find the magnitude the force between the two charges.

70. ## science

A example of negative feedback a. elevated free t4 resulting in elevated trh b. elevated free T4 resulting in elevated tsh c low free T4 resulting in elevated tsh d. low free t4 resulting in low tsh i think its B. not sure.

71. ## programming

if n is the number of seconds between lightning and thunder,the storm is n/ Miles away. write a program that reads the number of seconds between lightning and thunder and report the distance of the storm rounded to two decimal places

72. ## History

Which of the following is a common challenge that Native Americans in New Mexico face today? A. Alex has diabetes but cannot afford to buy medication to treat it.*** B. Marisol has health insurance that is paid for by her employer. C. Charlie wants to be a

73. ## probability

Make a histogram showing the binomial probability distribution for the following: A waiter at the Green Spot resturant has learned from long experience that the probability that a lone diner will leave a tip is only 0.7. During one lunch hour he serves six

74. ## maths

A rectangle of length y m and breadth 4 m less than the length. What is the perimeter??

75. ## Maths

Charlie's age is equal to 3 times her age in 3 years time minus 3 times her age 3 years ago. How old is Charlie?

76. ## Definition

What is the definition of international symbols?

77. ## Algebra 2

Log base 5 of 16 cubed. Times log base 11 of 6 squared. Equals logx.

78. ## algebra 1b

sarah has 16 coins, some quarters and some nickels. if te coins have a value of \$2.20, how many of each kind does she have.

79. ## math

Which answer describes the calculations that could be used to solve this problem? Bonita brought 3 bags of apples and 2 pounds of grapes to the picnic. Each bag of apples weighed 4 pounds. How many pounds of apples and grapes did Bonita bring to the

80. ## Math

4/5 of the birthday cake was eaten on your birthday the next day you're ate 1/2 of what was left. You got to finish the cake, how much was left? Hint: Leave your answer as a fraction

81. ## maths

For a certain amount of work,it takes john 6 hours less than tommy,if they both work together,it takes them 13 hours 20 minutes,how long will it take tommy alone to complete the work

82. ## Math

4/5 of the birthday cake was eaten on your birthday the next day you ate 1/2 of what was left. You got to finish the cake, how much was left? Hint: Leave your answer as a fraction

83. ## Physics

A concave spherical mirror has a radius of curvature of 18 cm. Locate the images for object distances as given below. In each case, state whether the image is real or virtual and upright or inverted, and find the magnification. (If an answer does not

84. ## math

find two consecutive positive integers such that their product added to four times the smaller integer equals 36

85. ## Physics

A slab of ice with parallel surfaces floats on water. What is the angle of refraction of a light ray in water if the light ray is incident on the upper ice surface with an angle of 60° to the normal?

86. ## Physics

A person can see an object in focus only if the object is no farther than 35 cm from the right eye and 58 cm from the left eye. Write a prescription for the refractive powers ℛ (in diopters) for the person's corrective lenses. right eye dpt left eye dpt

87. ## English

I'm worried about my health. 1. Why don't you go to a hodpital and have a health-checkup. 2. Why don't you lift weights every day? 3. Why don't you jump rope every evening? 4. Why don't you jog every morning? 5. To build a muscle, why don't you use

88. ## Physics

The near point of a patient's eye is 58.2 cm. (a) What should be the refractive power ℛ of a corrective lens prescribed to enable the patient to clearly see an object at 22.0 cm? ℛ = dpt (b) When using the new corrective glasses, the patient can see an

89. ## Math

How much money would you have in 15 days if you get a penny doubled each day?

90. ## English

What type of literary device? " At that instant he took a pistol out of his pocket and held the ice cold block at my head"

91. ## English

I'm worried about my looks. 1. Why don't you put on cosmetics on your face? 2.Why don't you eat sereals and brown rice? 3. Why don't you do a plastic surgery? 4. Why don't you make double eyelids? 5. Why don't you have a double eyelid surgery? 6. Why don't

92. ## Science

A charge q1=7.00 x 10^-6 is placed 0.300m from a second charge q2=-5x10^-6 C. Find the magnitude the force between the two charges.

93. ## Math

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2 + 5 + 8 + . . . + ( 3n - 1) = n(1 + 3n)/2

94. ## Differential equation (urgent pls!!!)

Reduce the differential equation below to an exact equation (X - 2siny + 3)dx -(4siny - 2x + 3)dy=0. The problem here is how to solve for the integrating factor...any help pls?

95. ## Math

Kim rolls two number cubes 60 times. How many times can she expect the sum of the numbers to be greater than 10

96. ## Literary Devices - English

What type of literary device is "dead in the eye"

97. ## math

Can u show me an example of how to find the figure of 10 units in a perimeter?

98. ## physics

A bicycle has 67.0 cm diameter wheels turning at 11.2 rev/s. How fast is the bicycle moving?

99. ## History

Which statement best classifies Native American graduation rates?' A. They are among the highest in New Mexico B.They are much higher than those of Hispanics, but lower than those of African Americans. C.They are about the same as those of white New

100. ## health

Drugs work in the brain by tapping into the brain’s communication system and ________ with the way nerve cells normally send, receive, and process information. A. Exploring B. Assisting C. Interfering D. All of the above

101. ## Algebra

A family is building a circular fountain in the backyard. the yard is rectangular and measures 10x by 15x and the fountain is going to be circular with a radius of 4x. Once the fountain is built, what will be the area of the remaining yard? A. 2x^2(75-8Π)

102. ## Physical science

A 11-kg box is dragged across a frictionless surface by a force F=55N. the box travels 4.0ft. what is the work done by the applied force F and the work done by the normal force?

103. ## Chemestry

Calculate the volume of a 0.225 M solution of potassium hydroxide,KOH,required to react with 0.215g of acctic acid,CH,COOH=KCH,COO+H2O.

104. ## Math

express 0.0054 as ratio of integers in simplest form

105. ## Science

How does lustre affect the amount of heat being absorbed by a black can

106. ## Math

Express 0.0054 as ratio of integers in their simplest form

107. ## math

using DeMoivre's theorem solve (-3,+3i)^4

108. ## math

find the angle between u(-1,4) and V(3,-4)

109. ## Chemistry

How many grams of solute are in 0.504 L of a 0.350 M K2CO3 solution?

110. ## Calculus

Compute, in terms of A, B, h, and k, the area enclosed by the curve defined by parametric equations. x(θ)=Acosθ+h and y(θ)=Bsinθ+k. 0≤θ≤2π.?

111. ## Algebra

Determine the measure of each exterior angle. The triangle looks like an upside down A with one line running longer at the point. The inside angles are A- 50 and in the next corner 75. In the bottom of the A-letter I need to solve for C and A and the extra

112. ## math

The length of a football field is 120 yd. The width of the football field is 50 yd. Which is the correct unit of measurement to use when figuring out how much rope is needed to surround the field? A. yd B. yd2 C. yd3

113. ## Chemistry

Using your knowledge of chemical migration, outline the two most possible chemical migration pathways for non-polar C9H12 that has been spilled onto an open field on a warm spring day.

114. ## Chemistry 101

If a solution containing 20.0 grams of nickle (11) chloride is mixed with an aqueous solution of containing 15.0 grams of silver nitrate,, determine the mount of silver chloride that theoretically will precipitate. How much nickle (11) nitrate is formed?

115. ## math lit,life science,geo and history

which careers require these subjects?

116. ## maths,geography,life science,history

explain in a short paragraph what can trgger spectator aggressive in sport

117. ## Matg

What percent is 181 of 13.58 after rounding to the nearest hundreth?

118. ## Chemistry 101

10.0 grams of nitrogen is reacted with 10.0 grams of the element phosphorus under certain conditions to yield trinitrogen diphosphide. Answer these questions. 1). Write a balanced equation. 2). which reactant is limiting? In excess? 3). Theoretically, how

119. ## Global Studies

What Role has religion played in the history of Isreal and it's neighborhors?

120. ## math

I have a question on a quiz, and I cant seem to figure it out I have to add 50,56,52,46,48,42,38 and that got me 332 then I have to divide it by 7 and get the mean, but then I get a remainder of 3 and I don't know what to do because I have to find that

121. ## Geometry

At a carnival, you spin a spinner that has four equal-sized sections, each a different color: green, yellow, red, and blue. If you land on green, you win 2 points. If you land on yellow, red, or blue, you lose 1 point. Write the expected value equation.

122. ## English

Read the following passage from “Three Skeleton Key”: The rats of the sea are fierce…. Large, strong, and intelligent, clannish and seawise, able to put the best of mariners to shame with their knowledge of the sea, their uncanny ability to foretell

123. ## Chemistry

Explain the chemical changes that occur in the red cabbage lab that changes the color of the cabbage juice. I know it has something to do with the hydrogen ions and maybe something to do with the electrons, but I don't understand what or how to answer this

124. ## Math

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2 is a factor of n2 + 7n

125. ## MATH

Which equation describes a linear function? A. y = 3x^2 + 2x - 1 B. y + 9/11 x + 14/15 C. y = _/x + x - 15 D. y = x^-1 + 3.25

126. ## MATH

my overall score including my final is a 72 did I pass

127. ## phychology

classical conditioning , develop analogy for industry

128. ## Math

How do i solve for b. 5=2pi/b

129. ## introduction to oorganisational psychology

conflict has always been a part of our lives, especially in the decision making processes. write down a case of multiple approach-avoidance conflict that you have experienced personally. how did you react? do not forget to include all the variance of this

130. ## Astronomy

What percentage of the stars surveyed show evidence of planets? (a) About 50% (b) About 30% (c) Less than 5% (d) Less than 1% I posted this earlier but there was not no response. I think the answer should be 40% but there is no option for that.

131. ## Art World Culture

2.)Art has careers based on? A.)Many subject areas*** B.)Only art-based subject areas C.)Subject areas that involve history areas D.)Subject areas that involve languages arts only Is "A" Correct?

132. ## Physics

A crate is sliding down a ramp that is inclined at an angle 26.8 ° above the horizontal. The coefficient of kinetic friction between the crate and the ramp is 0.260. Find the acceleration of the moving crate.

133. ## intro to physic fundamentals

the speed of a roller coaster that had descended 29.0 m was only slightly greater when it had an initial speed of 5.00 m/s than when it started from rest. This implies that ΔPE KEi. Confirm this statement by taking the ratio of ΔPE to KEi. (Note that

134. ## SS

How did the English overcome the Spanish Armada? A) through religious devotion B) through better military strategy C) with a larger navy D) by cutting off the Spanish food supply B

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135. ## introduction to organisational psychology

how the organization of your choice goes about changing attitudes of their employees?

136. ## Math

How high does the ball get after it is hot into the air? It is modeled by the equation H(t)=-16t^2+25t+3

137. ## Socials

I have to answer what is the primary goal of the summones of parliament document in England, and based on what it had that give anxiety to English.

138. ## math

How many different ways can you and six of your friends sit in your assigned seats in math class? (A)6!; 120 (B)6!; 720 (C)7!; 2,520 (D)7!; 5,040 C OR D?

139. ## english

Have you discovered where you left your books?

140. ## math

How do you verify tanxcosx/sqrt1-cos^2x = 1?

141. ## CHEMISTRY

Given: 3H2(g) + N2(g) 2NH3(g) If the reaction starts with 0.500 mol of H2, how many atoms of hydrogen in the compound NH3 would you expect to make?

142. ## Science

What caused the ten years war

143. ## French

Is this sentence correct in terms of subject and gender agreement? L'image est en noire et blanche.

144. ## math

How many different ways can you and six of your friends sit in your assigned seats in math class? (A)6!; 120 (B)6!; 720 (C)7!; 2,520 (D)7!; 5,040 C?

145. ## math

two figures are shown. figure a is a square and figure b is a rectangle. the perimeter of figure a is equal to perimeter of figure __3x-2_____ | | | | 3x-2| | 3x-2 |___________| 3x-2 ____________________ | | | | | | x-2 |___________________| 2x+5 What is

146. ## maths

a tap can fill a tank in 15 minutes .another tap can empty it in 20 minutes.Initially the tank is empty,if both the taps start functioning the same time,when will the tank become fill?

147. ## Health

Only people who chew smokeless tobacco can get oral cancer A. true B. false** Exposure to secondhand smoke carries the same long-term health risks as smoking A. true** B. false

148. ## English

Can someone please help me answer these questions and check question 1 please? Thank you. 1) How can words or stories connect generations? Words can allow stories to go through and be passes from generation to generation. 2) How can interactions between

149. ## Pre calculus

Your computer supply store sells two types of laser printers. The first type, A, has a cost of \$86 and you make a \$45 profit on each one. The second type, B, has a cost of \$130 and you make a \$35 profit on each one. You expect to sell at least 100 laser

150. ## physics

Two carts of masses m and 3m are at rest on a horizontal frictionless track. A person pushes each cart with the same force F for 5 s. If the kinetic energy of the lighter cart after the push is K = 180J, the kinetic energy of the heavier cart is :

151. ## Math

Help me divide these please? S.A=6s^2 divided by V=s^3 S.A+4 pi r^2 divided by V=4/3 pi r^3 S.A=2 pi r^2+2 pi rh divided by V= pi r^2 h

Please Check My Answers: 1) How was South Carolina constitution of 1868 different from previous state constitutions? A. Women lost their right to own property. B. Representation was based on population alone. *** C. Countries and districts were organized

153. ## physics

A car in an amusement park travels without friction on a vertical loop of 20 m radius. Calculate from what minimum height h it needs to be released from rest in order to remain on the track at the top of the loop.

154. ## trig

From a boat on the bay, the angle of elevation to the top of a cliff is 29°10’. If the bottom of the cliff is 1860 feet from the boat, how high is the cliff (to the nearest foot)? Assume that a right triangle is formed.

155. ## Geometry B: Unit 3: Similarity Lesson5 Practice

If you have done this please help me with just the practice question I have already done the quiz I just need help with the practice problems because they are in more detail.

156. ## Maths literacy ,life science,history,geography

Which university or college take the subjects that i am doing

157. ## History

What is critical diversity?

158. ## Algebra

The temperature y (in degrees Fahrenheit) after t months can be modeled by the function y=-3t^2+18t+53 where 1

159. ## french

Are these correct? she broke her leg - elle se cassée la jambe. my head hurts - J'ai mal à la tête you hurt your foot - vous blessez votre pied

160. ## Geometry

A cow is tethered by a piece of rope 50 meters long to the side of a rectangular barn. The rope is fastened to a hook (on the barn) that is located 20 meters from the corner along the longest side of the barn which measures 70 meters by 20 meters. Over how

161. ## Math

The Washingtons buy a \$260,000 home by putting 20% down and financing the balance with a 30-year fixed-rate 4.2% mortgage, compounded monthly. What is the amount of their monthly loan payment to amortize the loan?

162. ## Science

An electric light is plugged into a 120-V outlet. If the current in the bulb is 0.5 A, how much electrical energy is used by the bulb in 15 minutes?

163. ## Math

A bag contains 5 red balls, 4 white balls, and 3 black balls. Two balls are drawn without replacement. What is the probability that at least one ball drawn is white?

164. ## Science

A cord of negligible mass is wound around the rim of a flywheel of mass 20 kg and radius 20 cm. Steady pull of 25 N is applied in tue cord. The flywheel is mounted on a horizontal axis with frictionless bearings. Compute the angular acceleration of the

165. ## Chemistry 101

If a solution containing 20.0 grams of nickle (11) chloride is mixed with an aqueous solution of containing 15.0 grams of silver nitrate,, determine the mount of silver chloride that theoretically will precipitate. How much nickle (11) nitrate is formed?

166. ## math

Solve for: 1+cosx/sinx + sinx/1+cosx = 1 My teacher said no solution, but I don't know how he got that.

167. ## Biology

Describe the G protein receptor system and the tyrosine-kinase receptor system. Explain how these two systems are similar and how these two systems are different, in terms of structure and function please.

168. ## Chemistry 101

This is the question 10.0 grams of nitrogen is reacted with 10.0 grams of the element phosphorus under certain conditions to yield trinitrogen diphosphide. Answer these questions. 1). Write a balanced equation. 2). which reactant is limiting? In excess?

169. ## Chemistry 101

How many evaporation's did the curies have to make before they finally isolated radium?

170. ## math

there are 800 pieces of candy in a bag. 6/10 of them are jolly ranchers, 5 people decided to share equally, how many jolly ranchers does each people get

171. ## Chemistry 101

If the curries were able to extract 8.5ug of radium from 8.5 tons of pitchblende, what was their rate of recovery? (in percent please)

172. ## tourism

When does ephaphamani secondary school hand out application forms

173. ## Math

Your computer supply store sells two types of laser printers. The first type, A, has a cost of \$86 and you make a \$45 profit on each one. The second type, B, has a cost of \$130 and you make a \$35 profit on each one. You expect to sell at least 100 laser

174. ## Biology

Explain how cell membranes and their components participate in intercellular signaling. Give a specific example of cell membrane involvement in one particular type of cellular signaling.

175. ## Chemistry 101

In addition to uranium, which elements were known to emit radioactive "rays" before M. Curie discovered radium?

176. ## math

Two fire towers, A and B, are 20.3 km apart. From tower A, the compass heading for tower B is S80E. The ranger in each tower sees the same forest fire. The heading of the fire from tower A is N50E. The heading of the fire from tower B is N60W. How far, to

177. ## Biology

Define a protein kinase and explain its role in a signal transduction pathway. Then describe what can happen if an organism's cells experience abnormal protein kinase activity.

178. ## math

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2 + 5 + 8 + . . . + ( 3n - 1) = n(1 + 3n)/2

179. ## Biology

In one signaling pathway, cyclic AMP (or cAMP) acts as a second messenger in a series of reactions that result in the relaxation of smooth muscle cells in artery walls. Define cyclic AMP and describe the role and properties of a second messenger. Then

180. ## Science

Does the tilt of the earth cause one hemisphere to be closer to the sun? True or false False.