# Amber

Questions and answers by visitors named Amber

## Questions

1. ### Under an O2(g) pressure of 1.00 atm , 28.31mL of O2 (g) dissolves in 1.00L H2O at 298K.

What will be the molarity of O2 in the saturated solution at 298K when the pressure is 3.86atm ? (Assume that the solution volume remains at 1.00L .) I used PV=nRT and

2. ### What fundamental problem did noah Webster see in the Articles of Confederation?

> that states would always work in their own self-interest even if it meant harm to the nation as whole > that the central covernment would always favor large states over the

4. ### Match the inequality to its graph.

Graph A. less than or equal to -1 Graph B. less than 3 Graph C. less than 1 Graph D. less than or equal to -3 7. 4y + 3 *less than or equal to* y+6 8. -2y > 2 9. y over 3 < -1 10. 3y *less than or equal to* 2y +3 Not sure?

5. ### What is -^90 to nearest integer?

A. 3 B. -5 C. 7 D. -9 I'm not sure how to get the answer. Can anyone help?

7. ### Find sin x/2, cos x/2, and tan x/2 from the given information.

[1]. sin x = 5/13, 0° < x < 90° 1). sin x/2 =________. 2). cos x/2 =________. 3). tan x/2 =________. [Note: Plz help with these 3]

9. ### 1. Which of the following satements would describe the significance of the battle of kettle creek?

A.weapons and horses were taken from the British. B. the back country of georgia remained under patriot control C.the morale of the georgia milita was lifted

10. ### consider the function

f(x) = (x if x<1 (1/x if x>or equal to 1 Evaluate the definite integral: int_{-2}^{3} f(x)\,dx =

11. ### Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:

2 NO(g) + O2(g) → 2 NO2(g), ΔH°rxn = ? Given: N2(g) + O2(g) → 2 NO(g), ΔH°rxn = +183 kJ 1/2 N2(g) + O2(g) → NO2(g), ΔH°rxn = +33 kJ

12. ### According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy?

SiO2(s) + 4 HF(g) → SiF4(g) + 2 H2O(l), ΔH°rxn = -184 kJ

14. ### sin(2θ)=1/2

Find all solutions in the interval [0, 2π). (Enter your answers as a comma-separated list.) k = any integer What I have so far: pi/12 + kpi, 5pi/12 + kpi However, I do not know how to solve for the interval. Please help, thank you!

15. ### What is the linear approximation of the square root of 8.9? Must be accurate to the fifth decimal place.

I have tried everything it seems like yet cannot get the right answer.

16. ### Which of the following would describe John and Mary Musgrove?

A. They owned a trading post close to the early Georgia settlement. B. The knew both the English and Indian Languages. C. They acted as interpreters for Oglethorpe and Tomochichi D. all of the

17. ### Two ice skaters hold hands and rotate, making one revolution in 7.6 s. Their masses are 15 kg and 50 kg, and they are separated by 4.6 m.

Find the angular momentum of the system about their center of mass. Answer in units of J · s Find the total kinetic

19. ### Which of the following was a contribution of Tomochichi to the success of the Georgia colony?

A. He kept peace between british and the creek Indians B. He had a cure for disease caused by the mosquitoes C. He kept most of the land that Oglethorpe wanted for

20. ### A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E at 60 mph.

11. What is the bearing of the plane? 12. What is the smallest angle of the triangle? 13. What is the largest angle of the triangle? 14. What is the remaining angle of the

22. ### If a person weighs 818 N on earth and 5320 N on the surface of a nearby planet, what is the acceleration due to gravity on that planet?

A. 55.4 m/s^2 B. 46.5 m/s^2 C. 63.7 m/s^2 D. 73.3 m/s^2 Help!!

23. ### Which of the following was a cause of the Great Depression? (Choose all that apply.)

A. the stock market crash of 1929 B. prohibition C. failed crops and drought D. a lack of demand for goods The first 3? Is that correct?

24. ### Which inference about Near Eastern cultures is best supported by this image?

(Its a image of Cappadocian Tablet with Cuneiform Inscription Assyrian) A. All citizens of the ancient Near East were excellent writers. B. This tablet describes the only god

25. ### A plane is heading west at 200 mph. The wind is blowing S30°W at 25 mph.

1. What is the ground speed of the plane? 2. When you solve the triangle, what is the smallest angle? 3. What is the largest angle of the triangle? 4. What is the remaining angle? 5.

26. ### Fewer than 63 of the students surveyed said that they read for 30 minutes or more per night.

Write and graph an inequality for the situation above. Is it x<63?

F B E F or E

29. ### 2. W/4 - 4 = 3

a)-4 b)28****** c)3 d)11 3.X/5 + 6 = 10 a)44 b)30******* c)20 d)-20 4.-2(m-30)=-6m a)-15 b)-13************ c)-8 d)8 5.3.75x+3.7=1.7+1.75x a)10 b)-1 c)1***** d).1 Please check my answers :)

30. ### Which direction will the box move in the diagram below?

(Its a square in the middle and it has a long arrow pointing to it on the left side which is 5 N and then on the right side theirs a short arrow pointing to it which is 3 N) A. It will move to the

31. ### Which of the following aqueous solutions would you expect to be the best conductor of electricity at 25 degrees celcius? Explain your answer.

(a) 0.20 M NaCl (b) 0.60 M CH3COOH (c) 0.25 M HCl (d) 0.20 M Mg(NO3)2

34. ### i need some help on this question

a diamond cutter has a raw diamond that weighs 19.5 carats and from which two 5-carat diamonds will be cut. i need to find out how much the raw diamond weigh in milligrams and plus how much will each of the two cut diamonds

35. ### True or false

If y =ax+b then DeltaY/DeltaX = dy/dx If Y= x+c then dy = dx If you can measure the length and width of a rectangle correct within .1 cm, then the calculated area will be correct within .1 cm as well. I have True for the first 2 and false for

36. ### Rectangular Prism:

Length: 41 ft Width: 32 ft Height: 49 ft 1. Find the surface area for the given prism. 7,154 ft^2 2,624 ft^2 9,778 ft^2 8,432 ft^2. Help please because I'm not sure.

37. ### Patterns and colors on seventeenth to nineteenth century kimonos were used to identify the hometown of which type of Japanese citizen?

A. Farmers B. Nobility C. Warriors*** D. Lawmakers I'm not sure can someone help?

38. ### Which expression is equivalent to 4x4x4x4x4x4x4x4?

a. 4 x 8 b. 8^4 c. 8x8 d. 4^8 I think D.

39. ### Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3:

C7H6O3(s) + C4H6O3(l) ---> C9H8O4(s) + HC2H3O2(l) A. What mass of aspirin (kg) could be produced from 75.0 mol of salicylic acid? B. What

40. ### a) A student fails to wash the weighing paper when transferring the KHP sample into the beaker. What effect does this error have on the calculated molarity of the NAOH solution? Mathematically justify your answer.

b) A student failed to notice an air bubble

42. ### 1. A 5 kg weight is hung from a vertical spring. The spring stretches by 5 cm. How much mass should be hung from the spring so it will stretch by 10 cm from its original length?

A. 15 kg B. 10 kg C. 20 kg D. 25 kg 2. What is the spring constant of a spring

43. ### I just took an Ed Tech assessment and so could someone check my answers before I turn it in? Thanks!!

1.) What did the STRICT study generally find about the effect of Internet use on sleep? A. Teens who use the Internet and phone after bedtime have a

46. ### Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number.

(tan(74°)-tan(14°))/(1+tan(74°)tan(14°)) =__________ Find it's exact value (not decimal form) =__________ Note: A similar question(but with

47. ### what is the area of the triangle? (its a scalene obtuse triangle)

height 4.5 ft base 8.7 ft A. 13.2 ft^2 B. 19.575 ft^2 C. 20.25 ft^2 D. 39.15 ft^2

49. ### Translate this phrase into an algebraic expression.

7 increased by twice Malik's savings. Use the variable m to represent Malik's savings.

50. ### 2. Which of the following is NOT one of the regulations about land grants that the trustees put in place in Georgia?

A. Deserving poor could farm fifty acres B. Men would serve in the Miltia if Necessary C. Farmers were allowed to own slaves D. Tools and

51. ### 1. What function do the barrier islands play environmentally for the state of Georgia?

A. They create deep sea ports. B. They protect the coastline. C. They carry toxic chemicals from the mainland. D. They reduce the likelihood of drought. 2. Which of the

52. ### Calculate the molarity of the nitrate ion in a 0.111 M solution of calcium nitrate?

so would I have to find the number of moles of (NO3)2 and then divide it by the 0.111 M to get the molarity of the nitrate ion I am so confused please explain the set up I

53. ### A uniform disk with a mass of 130 kg and a radius of 1.2 m rotates initially with an angular speed of 950 rev/min. A constant tangential force is applied at a radial distance

of 0.5 m. How much work must this force do to stop the wheel? Answer in units of

54. ### to produce 4.00 mole if c6h12 from the following how many grams of c6h6 must you combine

78.12 g/mol c6h6 + 2.02 g/mol h2 = 84.18 g/mol c6h12

What monthly

59. ### Assuming 100% of your energy can be converted to electrical power, and electricity costs \$0.10 for 1 kilowatt-hour, how high should you climb to make one penny's worth of electricity? Show all work & units.

I have 288.8 watts, and that's as far as I have

76. ### Which is an algebraic expression for 5 more than a

A 5z B z+5 C 5z+5 D 5-z

83. ### Explain how the solubility of water is useful in maintaining various life processes.

BOOM! I kicked open the front door. I was here for inspection. A family of 5 was missing, last seen right inside this house. Another pack of police officers was missing too, after searching for the missing family. Nobody dared to enter the

14, 10, 12

86. ### Read the following passage and then select the correct answer:

According to some sources, more than 30 million adult Americans are unable to read. There are different levels of illiteracy; some adults will be able to recognize a collection of words, while

87. ### What is the adverb

There is a big sale at the mall

90. ### Twelve prizes were raffled off by the band to raise money for new uniforms. All of the prizes were valued at \$25 or more. Write and graph an inequality for the situation.

I'm struggling to figure out what the inequality would be... could it be 12 ≥ 25x ?

93. ### Sargon created the world’s first empire by....

defeating Hammurabi in battle. destroying the city-state of Ur. uniting Akkadian and Babylonian lands. conquering Mesopotamian city-states.

94. ### In Mexico, what is considered to be polite when you are greeting someone?

A. Saying "Hola" stopping and chatting for a minute, and asking about the other persons family B. Saying "Hola" kissing the other person on one cheek, and continuing to walk C. Saying

95. ### A baseball is thrown in the air at 5 ft. with an initial velocity of 42 ft per second. let t represent time and seconds. after the baseball is thrown let h represent height of the baseball. quadratic function h(t)= -16t squared + 42 t + 5

Find domain and

96. ### Your CEO is concerned that too much productivity is lost by having employees call each other, only to be directed to voice mail. He asks you if something can be done to counter this. What do you suggest?

a) Integrate Dropbox into the company network. b)

97. ### 1. A vector is defined as having magnitude of 15 m and a direction of East. Multiply this vector by the scalar value of –6. What is the resultant vector’s magnitude and direction?

A. 90 m East B. 90 m West C. -90 m East D. -90 m West 2. What are the