Friday

December 2, 2016
Total # Posts: 102,938

**Organic Chemistry**

The pKa of CH3COOH is 4.76. What statement describes a solution of CH3COOH at pH of 6.4?

*August 28, 2016*

**Bio physics chemistry pre medical **

The vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will be vitamin a has in 500mg capsule?

*August 28, 2016*

**english**

In Expanded Academic ASAP and other periodical databases, it's best to put your exact phrase in A. parentheses. B. between dashes. C. quotation marks. D. between asterisks.

*August 28, 2016*

**algebra **

The length of a rectangle is twice its width. The perimeter of the rectangle is 126ft.

*August 28, 2016*

**Bio physics chemistry pre medical**

balance the equation CH4 + 2H2O >>>4H2 + CO2 so twice times the volume (4/2). Law of combining volumes applies.

*August 28, 2016*

**Math**

A water tank is 5m tall and has a diameter of 3,5m.calculatethe capacity (volume) of the tank

*August 28, 2016*

**physics**

A truck traveling with an initial velocity of 26 m/s begins to slow down. The truck travels for 336 m in the time of 55 s. What is the truck\'s acceleration?

*August 28, 2016*

**math**

Formula of Area of triangle in coordinate geometry

*August 28, 2016*

**Chemistry**

22,342

*August 28, 2016*

**Chemistry**

if 12.8g of NaCl is added to 243.2 mL of water (density (1.00g/mL)). the volume occupied by the solution is 250.0 mL. Calculate the density of the salt water.

*August 28, 2016*

**Chemistry **

The weight of kclo3 which thermal decomposition o2 gas sufficient for the combustion of 1.12 litres of ethlene gas at STPis

*August 28, 2016*

**Chemistry **

One volume of a hydrocarbon require 3 volume of oxygen for complete combustion then formula for hydrocarbon

*August 28, 2016*

**Chemistry **

How many electrons involved in the reduction of one mole of Al2o3 to aluminium metal

*August 28, 2016*

**Chemistry **

How many moles of potassium permanganate is necessary to oxidise o.5 moles of soadium sulphate in acid medium

*August 27, 2016*

**Math**

If points X and Y are placed to the left of point Z on the line L such that 2YZ = 5XY, what is XY / XZ ? <_X________Y__________Z_> line L

*August 27, 2016*

**Math**

First problem: label GH as x. Then HI = 3x. Since GI is 24, you have x + 3x = 24. 4x = 24, 4x/4 = 24/4 so x = 6. This means that GH = 6 and HI = 18. Since HI/JI = 1/2, if HI = 18 then IJ = 36. The length of GJ is 6 + 18 + 36 = 60, GJ = 60.

*August 27, 2016*

**Math**

GH/HI = 1/3 and HI/IJ = 1/2 If the length of GI is 24 then the length of GJ is ________

*August 27, 2016*

**Math**

Thank you guys.

*August 27, 2016*

**Math**

Write the equation of a line that passes through (-10,3) and (-2,-5). What I have: y= -3/13x +b After doing y2 - y1/x2 - x, I got a slope of -3/13, but I'm confused on how to get the y intercept.

*August 27, 2016*

**Hospitality and Tourism**

I'm kind of confused like what difference will the word sector make?

*August 27, 2016*

**Hospitality and Tourism**

Or is the third one and fifth switched

*August 27, 2016*

**Hospitality and Tourism**

Match the definition with the word(s) Food and Beverage. Food and Beverage Sector, Hospitality, Lodging, Lodging Sector, Logistics, Recreation, Tourism, Travel and (tourism) Also known as accomodation Lodging Business of moving people from place to place Travel and (tourism) ...

*August 27, 2016*

**math**

Thickness of 12 sheets of paper is 2.4mm. find the thickness of 1 sheet of paper.

*August 27, 2016*

**math**

the lenght of a rectangle is twice its breadth. if its perimeter is 18cm, find its length and breadth

*August 27, 2016*

**Computer Applications **

Develop An Algorithm And Draw the Flowcharts To Find the Sum of Odd Numbers Between 100 And 200

*August 27, 2016*

**Higher Math**

if tan10x=cot5x, then what is the value of x?

*August 27, 2016*

**English Lit**

The tone is bitter angry sad unhappy miserable. Either one is okay

*August 27, 2016*

**Physics**

A heavy rainstorm dumps 1.0 cm of rain on a city 8 km wide and 9 km long in a 2 hour period. How many metric tons (1 metric ton = 10^3 kg) of water fell on the city? (1 cm^3 of water has a mass of 1g = 10^-3 kg) What I have thus far: 72 km^2 x (1E^10 cm^2/1km^2) x (10^-3 kg/ ...

*August 26, 2016*

**7th grade math**

your momy

*August 25, 2016*

**World history.**

ok thanks.

*August 25, 2016*

**World history.**

Jerichos status as the first city with a wall indicates that a. it was the first city built in during the old stone age b. it was the first time concrete was used as a building material c. it had a government that could organize construction projects d. it was the first time a...

*August 25, 2016*

**American government**

yesman is actually a king TYSM

*August 25, 2016*

**Maths**

A group of 48 ants have food for 16 days but 12 ants died after 4 days due to rain. For how many days the remaining food will be enough

*August 25, 2016*

**Physics **

An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of 75 Nm and a 5,0 Nm extra load of friction and gear. The efficiency of the motor is 78%. a) What is the input power of the motor? b) What is the work done by the motor in 24 hours and c...

*August 25, 2016*

**Health**

Which part of the health triangle includes sharing feelings with others A) physical B) social*** C) mental and emotional D) monetary My second answer would be mental and emotional

*August 25, 2016*

**MAth**

The diameter of a barrel is 56cm. It is rolled over 2944cm. How many complete revolutions is needed?

*August 25, 2016*

**maths**

what is the value of (2)^x/2+(3)^x/2=(13)^x/4

*August 24, 2016*

**S.S. Connexus**

🙄

*August 24, 2016*

**S.S. Connexus**

Any One know the answers the the Social Studies 8 A Unit 3: The Revolutionary Era test?

*August 24, 2016*

**math**

since YZ = 18 XY/YZ = 7/9 substitute 18 to YZ XY/18 = 7/9 then multiply XY = (18) (7/9) XY = 14 then solve WX/XY = 5/7 substitute 14 to XY WX/14 = 5/7 WX = (14) (5/7) WX = 10 summarize the value WX = 10, XY = 14, YZ = 18 How long is WZ? 10 + 14 + 18 = 42 WZ = 42

*August 24, 2016*

**math**

wx/xy = 5/7 and xy/yz = 7/9 if YZ = 18 how long is WZ?

*August 24, 2016*

**Math**

1/2 (90) + 1/4 (84) + 1/4 (x) = 82 LCD = 4 2 (90) + 1 (84) + 1 (x) = 4 (82) 180 + 84 + x = 328 x = 328 - 180 - 84 x = 64

*August 24, 2016*

**Math**

The score for half of the students in a class on a certain test was 90. The score for another fourth of the students was 84. if the average (arithmetic mean) score for all of the students was 82, what was the average score for the remaining students?

*August 24, 2016*

**Math**

average = ( a + b ) / 2 substitute the value of b = 11a ( a + b ) / 2 ( a + 11a ) / 2 = 12a / 2 = 6a

*August 24, 2016*

**Math**

If b= 11a, what is the average (arithmetic mean) of b and a in terms of a?

*August 24, 2016*

**Maths**

elaborate the given use equation tool

*August 24, 2016*

**Math**

Twenty-five people are asked to donate money to a local charity.Exactly fifteen (15) give at least P100 each. If x is the average (arithmetic mean) amount donate, what is the lowest possible value of x?

*August 24, 2016*

**Math**

A chemical compound becomes 1.375 degrees hotter when one gram of calcium is added to it. how much calcium must you add to raise the temperature of the compound by 75.625 degrees/

*August 24, 2016*

**Math**

If the average of x and y is 10, then the average of x + 7 and y + 17 is ?

*August 24, 2016*

**Math**

s – 246 = 100 What is s?

*August 24, 2016*

**Science**

A racecar driver steps on the gas, and his car travels 16 meters in 2 seconds, starting from rest. What is the average velocity in m/s and km/h?

*August 24, 2016*

**Math**

The difference between 191.60 and 191.63 is 0.03 so I would say that three is worth about 0.03

*August 24, 2016*

**math**

24 and 96

*August 24, 2016*

**math**

A box contain 120 oranges 20 percent of them are not suitable for sale hiw many oranges are unsuitable for sale. How many orange could be sold

*August 24, 2016*

**MAth**

The diameter of a barrel is 56cm. It is rolled over 2944cm. How many complete revolutions is needed?

*August 24, 2016*

**physics**

A block of wood is 8.00cm long, 20.0cm high, and 0.10m wide. its mass is 1.00kg. what is its density in g/cm3?

*August 24, 2016*

**pre-algabra**

im trying to figure this out can you help me. the question is you download 12 new songs to your MP3 player. Then you 5 old songs. and then it says i have to write the amount as an integer. can you please help me.

*August 23, 2016*

**Algebra 1**

To which subsets of real numbers does the number –22 belong? Choose all subsets that apply. whole numbers** rational numbers integers** irrational numbers natural numbers Maximum choice is 2

*August 23, 2016*

**waketech**

How many cords of wood could you fit in a room that is 88 yards long, 88 yards wide, and 33 yards high? Use the fact that 1 cordequals=128 ftcubed3 and 1 ydcubed3equals=27 ftcubed3.

*August 23, 2016*

**Language**

Mary was awarded first prize in the contest

*August 23, 2016*

**American government**

Ms sue you rude

*August 23, 2016*

**American government**

It was d

*August 23, 2016*

**American government**

She just wants you to learn the answers on your own lol

*August 23, 2016*

**American government**

This lady is rude!

*August 23, 2016*

**Physical science check my answers**

2. Speed 3.velocity 4.B or C

*August 23, 2016*

**American government**

So it is C

*August 23, 2016*

**American government**

so it is c

*August 23, 2016*

**home project**

I my room is 15 by 15 square feet, how many tiles would i need

*August 23, 2016*

**mechanics**

A projectile is launched from the origin with a speed of 2 ms−1 at the angle of 60∘ from the horizontal. Assume that ground to be flat and plane of trajectory to be x-y plane with x-axis along horizontal. The radial and tangential components of its velocity at its ...

*August 23, 2016*

**Math**

Determine the miles traveled in 5hours at a rate of 189 miles in 3hours

*August 23, 2016*

**Math**

1011

*August 22, 2016*

**Science - Please Look!**

100%!!

*August 22, 2016*

**Math**

The present age of a woman is 30years older than her daughter. 15years ago she was twice as old as her daughter. How old is her daughter at present. How old would the woman be 12years from now.

*August 22, 2016*

**Science**

What is the function of the nucleus in a cell? A.The nucleus controls the cell’s activity.** B.The nucleus identifies a cell as belonging to a plant. C.The nucleus determines what substances enter and leave the cell. D.The nucleus can be seen under a transmission electron...

*August 22, 2016*

**Science**

Which of the following is not part of the cell theory? A.Cells are the building blocks of life. B.All living things are made up of cells. C.All cells are created from other cells through cell division. D.The nucleus is the control center of the cell.***

*August 22, 2016*

**science**

an electron orbiting around hydrogen atom in circular orbit of radius 1armgstrom with the speed of 5*10^6 m/sec. Calculate magnetic field produced at the nucleus?

*August 22, 2016*

**Maths**

120 liter lemonade solution require 11%sugar and 9%juice solve for sugar and juice requirements

*August 22, 2016*

**Chemistry**

There are three naturally occurring isotopes of the hypothetical element hilarium 41Hi, 42Hi, and 44Hi. The percentages of these isotopes are the following: Hilarium Natural Isotopes Abundance 41Hi 18.7% 42Hi 43.6% 44Hi 37.7% You can assume that the atomic masses are exactly ...

*August 22, 2016*

**Math**

If I have 25 dollars and need to buy 25 fruits. The fruits is watermelon is 4 dollars. Peaches is 50 cents. Apples is 25 cents.what 25 fruits can I buy with 25 dollar's?

*August 21, 2016*

**maths**

the difference between two numbers is 16. if the smaller number is one-third of the larger number than what find the numbers

*August 21, 2016*

**Math**

If I have 25 dollars and need to buy 25 fruits. The fruits is watermelon is 4 dollars. Peaches is 50 cents. Apples is 25 cents.what 25 fruits can I buy with 25 dollar's?

*August 21, 2016*

**Chemistry**

How many grams of KCl should be added to 1.5kg of water to lower its freezing point to -7.5°C

*August 21, 2016*

**Math**

If I have 25 dollars and need to buy 25 fruits. The fruits is watermelon is 4 dollars. Peaches is 50 cents. Apples is 25 cents.what 25 fruits can I buy with 25 dollar's?

*August 20, 2016*

**Algebra**

What would the domain of Y=_/2x+14)/(x^2)-49 be? (2x+14 is under a square root) There's a hole but I do not know how to factor them

*August 20, 2016*

**algebra**

a ball is dropped from the top of a building that is known to be 256 feet high.the formula for finding the height of the ball at any time t is h=256-16t^2,where t is measured in seconds.how many seconds will it take for the ball to hit the ground?

*August 20, 2016*

**maths**

If the length of a rectangular room is 4 times its width,how is the room if it is 6,8 m long.Calculate the perimeter of the room.

*August 20, 2016*

**chemistry**

what is the concentration of na and co3 ions in 0.2M aqueous solution of na2co3

*August 20, 2016*

**Maths Mensuration**

Rs 448

*August 20, 2016*

**government**

what states supported the new jersey plan

*August 19, 2016*

**Social Studies (check answers)**

thank you guys :) 100%

*August 19, 2016*

**American government**

Ms sue you rude 👋🏽

*August 19, 2016*

**calc**

Suppose the marginal cost is C′(x) = e^−0.3x , where x is measured in units of 200 items and the cost is measured in units of $10,000. Find the cost corresponding to the production interval [200, 1,000]. Round to the nearest dollar.

*August 19, 2016*

**Maths**

A bag contains marbles of three different colours red, blue , yellow. 2/5 of the marbles are red. The ratio of the number of blue marbles to the number of yellow marbles is 5:7. What fraction of the marbles in the bag is blue? There are 54 more red marbles than blue marbles. ...

*August 19, 2016*

**Math**

How do u simplify ab to the 3rd power over b to the 2nd power

*August 19, 2016*

**Language Arts, someone check please?**

So, the first one is A?

*August 18, 2016*

**High Agility Math**

Juan has twice as many brothers as sisters. His sister Maria has 5 times as many brothers than sisters. How many children are in the family?

*August 18, 2016*

**Health**

Social ad physical.

*August 18, 2016*

**Social Studies**

James is right

*August 18, 2016*

**Social Studies**

all yall shut up

*August 18, 2016*

**Social Studies**

@anon Then please learn how to spell "site".

*August 18, 2016*