# Questions Asked onApril 28, 2014

1. ## Chemistry

Hydrogen peroxide can act as either an oxidizing agent or a reducing agent, depending on the species present in solution. Write balanced half-reaction equations for each of the following: (a) H2O2(aq) acting as an oxidizing agent in an acidic solution.

2. ## chemistry

The boiling point of another member of this homologous series was found to be 309 K \rm K. What is the likely molecular formula for this compound?

3. ## social studies

PLEASE ANSWER! which most precisely describes the location of Southwest Asia? a) west of India b) south of the Arctic Cirlce c) north of the equator d) east of the Mediterranean Sea

4. ## Chemistry

use the data from this table of thermodynamic properties to calculate the maximum amount of work that can be obtained from the combustion of 1.00 moles of ethane, CH3CH3(g), at 25 °C and standard conditions. on the chart is said ethane(C2H6) is -84.0. In

5. ## social studies

ANSWER! PLEASE!! which of the following most contributed the rise of Sumer? a. farming b. military power c. isolated location d. trade

6. ## Simple Chemistry

A.Write a brief procedure outling how would you prepare 250mL of a 0.150M solution of a CoCl2 from solid CoCl2 and distilled water b. Using the solution from part a and distilled water, how would you prepare 100ml of a 0.0600 M solution of CoCl2 C. What

7. ## Chemistry URGENT

can someone please tell me what formula's to use for the 2 following chemistry problems. 1. Calculate the solubility of potassium bromide at 23 degrees Celsius. hint. Assume that the solubility increases by an equal amount for each degrees between 20

8. ## Chemistry

A reaction : A(aq)+B(aq) --> C(aq) has a standard free-energy change of –4.01 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M,

Lee wants to cut this piece of canvas into two rectangles that are 3 x 2 and 3 x 5. He wants the sum of the areas of the two small rectangles to be the same as the area of the large rectangle. Can he do this? explain.

10. ## math

Dwayne answered 80% of the questions on a quiz correctly. If he answered 40 questions correctly, what was the total number of questions on Dwayne’s quiz?

11. ## Chemistry

Balance the following equation for a half reaction that occurs in acidic solution. Use e– as the symbol for an electron. U^4+ --> UO2^+ There is a hint: In acidic solution, you may add H2O and H as needed to balance oxygen and hydrogen. When finished,

20. ## math (5)

Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars,

21. ## Statistics

If the critical z value for a hypothesis test equals 2.45, what value of the test statistic would provide the least chance of making a Type I error? 3.74 10,000 2.46 4.56

22. ## Chemistry

separate this redox reaction into its component half-reactions. O2 + 4Cu-->2CuO Oxidation half-reaction: ? Reduction half-reaction: ? I believe that the Oxidation is copper and that reduction is oxygen. So I tried to write it as 4Cu^+ --> 4Cu + 4e^- O2^2-

23. ## Math

A calendar that has one page per day is 7 inches long, 7 inches wide, and 2 inches high. What is the volume of one page of the calendar? Round your answer to the nearest thousandth.

24. ## Chem

Write a brief procedure outling how would you prepare 250mL of a 0.150M solution of a CoCl2 from solid CoCl2 and distilled water

2. You finished writing a research paper on the way modern technology affects communication within families. Now you need to include the citation for an editorial published in the Sacramento Gazette titled “Should We Just Text Our Children?” However,

26. ## Chemistry

A system which undergoes an adiabatic change (i.e., q = 0) and has work done on it by the surroundings has a. w < 0, ΔU = 0 b. w < 0, ΔU < 0 c. w > 0, ΔU < 0 d. w > 0, ΔU > 0 e. w < 0, ΔU > 0

27. ## chemistry

1.00 of an aqueous solution contains 1.52g of a compound used in antifreeze. If the osmotic pressure of this solution at 20.0 degree C is 448 torr, calculate the molar mass of the antifreeze compound

When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation

34. ## Math

A swimming pool is in the shape of a cuboid with dimensions 50 metres long by 25 metros wide by 2.5 metres deep. If the pool is completely filled with water, calculate a) the volume of water in the pool b) the longest straight distance a swimmer could swim

35. ## Chemistry: Please check my work!I am stumped

When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation

36. ## math

a cylindrical metal bar has a base radius of 2cm and a height of 9cm. it is melted down and recast into a tube. Find a side of the cube

37. ## physics

With a magnetic field perpendicular to a single 13.2 cm diameter circular loop of copper wire decreases uniformly from .670 T to zero. If the wire is 2.25 mm in diameter how much charge moves past a point in the coil during this operation?

92. ## english

Can someone help me to write only five or ten sentences about there self, you may include any, all or none of the following details:your daily activities,your family, your hobbies, your future goals,and your favorite dinner please!!!!!??? I need help it

93. ## Biology

Describe how a monomer is the basic unit of all macromolecules.

94. ## us history

can you check my answers please? The “silent majority” referred to A. conservative working- and middle-class citizens B. women C. a liberal coalition of ethnic minorities, women, the aged, and the poor D. the nation’s youth E. deaf-mutes in

95. ## A.P English

Would the use of the phrase "wore her out" regarding a certain character throughout the first 100 or so pages of the book count as parallelism?

96. ## physics

A charge of +0.5 C is moved from a position where the electric potential is 10 V to a position where the electric potential is 70 V. What is the the change in potential energy of the charge associated with this change in position?

97. ## physics

In the previous problem (Question 4), if the distance between the two plates of the capacitor is 3 cm, what is the magnitude of the uniform electric field between the two plates?

98. ## Algebra 2

Carsen has a choice of shirts for soccer practice. The shirts are small, medium, and large. She has a black shirt and a blue shirt. The other choice is long sleeve or short sleeve. How many choices does Carsen have?

99. ## biology

Describe the resources found in the Amazon rain forest—why is the rain forest so important?

100. ## Math Help

Consider the quadratic equation (a) Solve the equation using the quadratic formula, expressing your answer in terms of k. (b) What condition on k will assure that the equation has exactly one solution? (c) What condition on k will assure that there are two

101. ## Math

Identify any real and extraneous solutions for the equations below. Sqrt p = -1

125. ## math

A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is

126. ## Music

So I am doing an essay and I wanted to know the lyrics to Am I Born To Die by Tim Erikson, it is in the 2003 movie Cold Mountain. I cannot follow links, so if you could copy and paste the lyrics, I would appreciate it.

127. ## math

1.FIND the bank discount and proceeds on the following loans i) RM4000 FOR 3 MONTHS at 10 1/2 percent ii) RM4215 FROM 10 june to 5 august of the same year at 10 percent

128. ## math

A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is

129. ## math question

If jack has a 63% as his grade.If he takes a test worth 9% and got 10/10 what would his grade be then?

130. ## Math

Mary has a container of sugar in the shape of a cylinder the container has a diameter of 10 inches and a height of 6 inches if the container is full how much will the sugar weigh if the average weight of the sugar is 0.2 ounces per cubic inch round to the

131. ## modern wrld history

why is the rain forest important

Revising sentences for agreement. There is either an error in subject-verb agreement or an error in pronoun-antecedent agreement 1. Two dollars were once considered generous pay for an hour's work. My answer: Two dollars was once considered generous pay

143. ## biology

What are some of the costs of the destruction of the rain forest?

144. ## math

The length of a rectangle is 3b + 2 and the width is 9b + 6. What is the ratio of its length to its width?

x-5/6

146. ## chemistry

what are three examples of a hypothesis? Or at least one....

147. ## Grammar

Write a word or phrase to describe the feeling or meaning that the end punctuation indicates. 1. There are no vacant rooms at the inn? A: Anxious feeling. 2. There are no vacant rooms at the inn. A: ? 3. Summer is here! A: Excitement. 4. Summer is here? A:

148. ## math (1)

Compute the following values for the given function. h(x,y)=(2x+8y)/(x-y) a. h(0,1)= ? b. h(-1,1)= ? c. h(2,1)= ? d. h(pi,-pi)= ?

149. ## Law

Which of the following is an example of third-party policing? A. The police coercing a slumlord to fix a problem at one of his or her apartment complexes or face possible civil consequences B. The police using their power and authority to force the owner

150. ## math (2)

Compute the following values for the given function. f(x, y) = 5xye^(x^2+y^2) a. f(0,0)= ? b. f(0,1)= ? c. f(1,1)= ? d. f(-1,-1)= ?

151. ## Statistics

A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the

154. ## math

if two dependent samples of size 20 are used to test the difference between the means, the degrees of freedom for a t-statistic is 19, true or false

155. ## Physics

What is the total internal energy of 5.00molmol of 30∘C^\circ C He\rm{He} gas and O2\rm{O_2} gas, respectively?

156. ## physics

A large cube (one side measuring 1.0 m) is submerged in water, with the top face of the cube 8.7 m below the surface. Find a) the force exerted by the water on each face of the cube. b) the buoyant force on the cube.

157. ## Math

At which points do the lines intersect 2x+y=8 y=-3(x-3) A. 0,8 B. 3,-2 C. 2,4 D. 1,6

158. ## ela

explain why each word or term is either capitalized or not.EX: President George Washington ; title and name of a person. 1]Robert E. Lee was a general in the Civil War. I just need an idea of how to answer these questions so i can do the rest.

159. ## physics

What is the total internal kinetic energy of 16.2 moles of a monatomic ideal gas at a temperature of 279 K? KE =

160. ## Algebra

Which of following is a solution to x^3=8 24, 5, 2.73 or 2?

161. ## Math

Simplify sqrt 250 j^4 o^5 Everything is under the radical.

162. ## accounting

i need help working through this! i am stuck. 3. Definitions of manufacturing concepts Interstate Manufacturing produces brass fasteners and incurred the following costs for the year just ended: Materials and supplies used Brass \$75,000 Repair parts 16,000

163. ## Grammar

Write a word or phrase to describe the feeling or meaning that the end punctuation indicates. 1. There are no vacant rooms at the inn? A: Anxious expression. 2. There are no vacant rooms at the inn. A: Disappointed expression. 3. Summer is here! A: Excited

164. ## School Help

current conditions of health? and do they need UNDP Assistance ???

165. ## Chemistry

what three substances are usually electrolytes?

166. ## Statistics

A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the

167. ## Chemistry URGENT

Help. what is the formula to figure out the total mass of a solution?

168. ## Chemistry URGENT/DR BOB

Hello Dr.Bob, the saturate at 60 degrees Celsius is 85.5g i hope this helps with the problem I posted at 12:49am thanking you in advance

169. ## Finance

ABC Company is engaged in the manufacturing of electronic equipment. The Company has reported net loss for the year 2013 but its Cash Flow Statement is showing a positive net cash flow. Being a student of Business Finance, you are required to discuss

Revising sentences for agreement. There is either an error in subject-verb agreement or an error in pronoun-antecedent agreement 1. Many a girl has taken Shirley Chisholm as their model of success. My answer: Many girls has took Shirley Chisholm as their

171. ## Chemistry lab reports online?

Are there any websites with other students' lab reports with calculations online? I do not want to copy and am completely against plagiarism. I just want to look at others' examples to help in giving me ideas on how to write my own and make sure I have

172. ## Engineering Physics

which of the following is equal to the angular acceleration of a disk? a)first time derivative of angular position b) second time derivative of angular position