Monday
May 2, 2016

Posts by Sabrina

Total # Posts: 502

Chemistry
If you had .1 ml in a 1M solution of HCl how much water would you need to dilute it to a pH of 7?
April 11, 2016

Chemistry
What is the yield of the synthesis of ammonia to 400° C and 500 atm of pressure?
April 9, 2016

Chemistry
@DrBoB222 30 / 400 * 100 0,75% ??
April 7, 2016

Chemistry
A saline solution with a mass of 400 g has 30 g of NaCl dissolved in it. What is the mass/mass percent concentration of the solution?
April 7, 2016

physics
You live at the top of a steep (a slope of ???? degrees above the horizontal) hill and must park your 2200 kg car on the street at night. a) You unwisely leave your car out of gear one night and your handbrake fails. Assuming no significant frictional forces are acting on the ...
March 1, 2016

chemistry
___Fe(NO3)2 + Al___Al(NO) +__Fe
February 24, 2016

Math
Rectangular prism below consists of troy's spaceship mode how do you solve it
February 21, 2016

math
Ellen needs to buy 180 inches of ribbon to wrap a large present the store sells ribbon only in whole yards how many yards does Ellen need to buy to have enough ribbon
January 29, 2016

physics
A 400N weight is sitting on a piston. The diameter of the piston is 8 cm. How much pressure does the weight exert on the piston?
January 23, 2016

Chemistry
Thank you so much Scott ! .
January 19, 2016

Chemistry
A 10.0g sample of H2O(l) at 23.0degrees C absorbs 209 joules of heat. What is the final temp of the H2O(l) sample?
January 19, 2016

math
Write the equation in slope-intercept form of the line that passes through the point (-3, 5) and has a slope of 2/3.
November 3, 2015

math
the external dimensions of a closed box are 8cm by 5cm by 4cm. given that the thickness of the wood of which it is made is 0.5cm, find the volume of the wood used to make it.
October 26, 2015

HMS. Science
Describe past environments and the history of life.
September 29, 2015

Chemistry 101
I have been attempting this problem so many times. I dont know if I am plugging in the numbers correctly but I cannot seem to get the answer correct. Please help! A patient arrives in the emergency room with a burn caused by steam. Calculate the heat, in kilocalories, that is ...
September 19, 2015

chemistry
For the decomposition of gaseous dinitrogen pentoxide (shownbelow), 2 N2O5(g).....> 4NO2(g) + O2(g) the rate constant is k = 2.8 10-3 s-1 at 60°C. The initial concentration of N2O5 is 1.52 mol/L. (a) What is [N2O5] after 5.00 min? _____mol/L (b) What fraction of the ...
September 13, 2015

Math
In 2014, the Whaddock Company purchased 1,560,000 units from its supplier at a cost of $250.00 per unit. Whaddock sold 1,525,000 units of its product in 2014 at a price of $350.00 per unit. Whaddock began 2014 with 425,000 units in inventory (inventory is carried at a cost of...
September 9, 2015

Social Studies
How long ago was 1000 C.E. ? You would find the answer by A. Subtracting 1000 C.E. from the present year B. Adding 1000 C.E. to the present year Thank you.
September 9, 2015

Calculus
The equation of a circle, C, is x^2 + y^2 + 6x - 8y +9=0. Find the center of C and find the radius of C. Show that the C touches the x-axis. Find the equation of the circle which is a reflection of C in the y-axis
August 26, 2015

pre-cal
find the length of side b ABC to the nearest whole number if A = 42, B = 87, and a = 24
August 18, 2015

Statistics
The Phillies were accused of cheating their beer customers by not putting enough beer in their 12 oz cups. When 15 cups were selected at random, they were found to have a mean of 11.7 ounces with a standard deviation of 0.5 ounces. At the .01 significance level, test the claim...
July 27, 2015

Physics
The standard sampling rate (in Hz) used for sampling speech signals in telephony systems is 8 kHz with 8 bits assigned per sample. Based on this fact, calculate how much time it would take to transmit one second of raw digitized speech over a transmission line that has the ...
May 4, 2015

english
Hello I am having quite a bit of trouble trying to figure out a better way to answer this. 1. In the video, The Fates Present: Pyramus & Thisbe,There are parts of the animated version in which there is a character, who appears at the beginning of the animation first, and who ...
April 15, 2015

math
$80.00 + $21.00 = $111.00
April 15, 2015

science
Describe what happens to the electricity produced at 25kV by a power station when its transmitted to a house at 230 V many miles away.
March 15, 2015

Science
1 - yes 2 - yes 3 - yes 4 - yes 5 - yes 6 - no, it is A 7 - yes 8 - yes 9 - yes 10 - yes
February 13, 2015

chemistry
a pool is 39.8 m long and 28.2 m wide. if the average depth of water is 4.90 ft, what is the mass (in kg) of water in the pool? enter your answer in scientific notation. the density of water is 1.0 g/mL
February 4, 2015

math
James needs to bring his grade up to a B (80) in reading. What does he need to get on his next quiz? Quiz 1:77 Quiz 2:81 Quiz 3:74 Quiz 4:?
January 19, 2015

Math
A basket with 12 apples has a mass of 3105 grams. The same basket with 7 apples has a mass of 1980 grams. Each apple has the same mass. What is the mass of the basket?
November 20, 2014

English
1. Both Walt Whitman and Emily Dickinson were influenced by the Romantics. Choose one of the two poets. Provide at least three ways that he or she reflects Romantic thinking in his or her writing. Then give an example from one of the works that you studied in this unit that ...
November 6, 2014

Physics
Explain how you would determine how much error there is between a vector addition and the real results.
November 6, 2014

Algebra 1 please help answer
HHHHHEEEEEELLLLLLLLLLPPPPPPPPPPPPP
November 4, 2014

Managerial Accounting
can't
October 28, 2014

Managerial Accounting
The overhead rate for materials handling is $10 per part based on an estimated total cost of $900. Products X & Y have 320 and 280 parts respectively. What is the overhead allocated to X & Y? A. Product X $3,200, Product Y $4,400 B. Product X $4,800, Product Y $4,400 C. ...
October 28, 2014

physics
What is the velocity of a baseball thrown 40m from third base to first base in 1.9s? Show your work, and simplify please.
October 28, 2014

Physics
A person pushes a 10 kg crate 5 m up a 29 degree incline with an 80 N force parallel to the incline. The fricitonal force is 20 N. Find the work done: a) by the person b) by gravity c) by friction
October 27, 2014

General Chemistry
We mix 112 grams of oxygen gas with 118 grams of argon gas in a volume of 1752 mL at 74 degrees celsius. What will be the final pressure of the gas mixture? First, I converted the grams into moles. 112g O2 * (1mol O2/ 32g O2) = 3.5 moles O2 118g Ar * (1mol Ar/ 40g Ar) = 2.95 ...
October 26, 2014

Physics
A satellite in circular orbit around the earth has an orbital speed of 5 km/s. What is the period of the orbit? Assume the mass of the Earth is 5.98e24 kg.
October 19, 2014

Social studies
Thank you soooooooo much
October 9, 2014

Social studies
But I have to turn this assignment tomorrow
October 9, 2014

Social studies
Oh okay and could you give me the best ending if so
October 9, 2014

Social studies
It was late 1540s. The skies were clear when we set sail from England. The was sailing to Hawaii to find some precious gold and Jewell basically treasure. So before that we got ready by packing few important stuff that we might be needing throughout this journey. Food was one ...
October 9, 2014

Social studies
Could you read my story after I finish writing it please
October 9, 2014

Social studies
But there is no answer below
October 9, 2014

Social studies
Write a one page story a about an explorer (can be you) Include: where you would explore ( Fiji land) Transportation to get there, food, clothing tools,weapons. All Fromm 1400s or 1500s Does not need current times
October 9, 2014

Social studies
Ms.sue you know the question I wrote yesterday could give me the starting point of that story pleas
October 9, 2014

Math
write these pairs with common denominators 5/8 and 1/2 ?
October 9, 2014

Physics
A ship is sailing west at 5km/h relative to land.To people on the ship, a balloon appears to move away horizontally at 10km/h versus east. A)what is the wind velocity relative to land? B)What is the distance travelled by the balloon in 30 min 1)For a person at rest on the ship...
October 8, 2014

Social studies
Ms.Sue but how do I make all of this information into a big huge story. Could you give me the starting point. And could you tell me a place which actually matches the info. You gives me pleas.
October 8, 2014

Social studies
Well the things I want to know about the story is the transformation to get there in 1400s or 1500s, food in those days, clothing, tools, weapons that I would be needing in those days
October 8, 2014

Social studies
Write a one page story a about an explorer (can be you) Include: where you would explore ( Fiji land) Transportation to get there, food, clothing tools,weapons. All Fromm 1400s or 1500s Does not need current times
October 8, 2014

Physics HELP
Two blocks of masses m1 = 6 kg and m2 = 6 kg are on either side of the wedge shown in the figure above. Find their acceleration and the tension in the rope. Ignore friction and the pulley.
October 7, 2014

Physics HELP
Two blocks having mass m1 = 6 kg(m1 on ramp of 30 degrees) and m2 =3 kg are connected by a light rope and slide on a frictionless surface as in the figure below. A force F = 10 N acts on m2 at 20 degrees relative the horizontal. Find the acceleration of the system and the ...
October 7, 2014

Science
make an observation of food waste occurring in your home and write at least two sentences describe the waste that has occurred.
October 7, 2014

Physics
Two blocks of masses m1 = 6 kg and m2 = 6 kg are on either side of the wedge shown in the figure above.(m1 on ramp of 30 degrees and m2 on ramp of 60 degrees) Find their acceleration and the tension in the rope. Ignore friction and the pulley.
October 6, 2014

Physics
Block B has a mass of 4.2 kg and block A has a mass of 2.6 kg. They are in contact and slide over a frictionless horizontal surface. A force of 11 N acts on B.(force applied on block b then block a , they are beside each other) what is the force on B due to A if the blocks are...
October 6, 2014

Physics
A particle of mass 2 kg has an initial velocity of (4.5i + 3.5j) m/s. It is acted on by a force (5i -2j) N for 2 s. What is its final velocity?
October 6, 2014

Math
Find lim h->0 [f(2+h)-f(2)]/h where f(x)=|x-5|-7
October 2, 2014

Math
find limit of h->0 [f(8+h)-f(8)]/(h) where f(x)=sqrt(x)-8
October 1, 2014

British Literature
I have to write a compare and contrast essay of the characterization of Sir Gawain and The Wanderer and I can't really find a difference between the two characters. I've found many ways I can compare the characters, but no differences. I need help finding a contrast ...
September 24, 2014

chemistry
For the decompostion of gaseous dinitrogen pentaoxide, 2N2O5(g)--->4NO2(g) +O2(g) . The rate constant is k=2.8 x 10^-3 at 60 degrees C. The initial concentration of N2O5 is 2.45 mol/L. What is (N2o5) after 5.00 min? What fraction of the N2o5 has decomposed after 5 min?
September 14, 2014

chemistry
What mass of cesium bromine must be added to a 0.500 liter of water (d=1.00 g/ml) to produce a 0.981m solution? what are the mole fraction and mass percent of CsBr?
September 8, 2014

Algebra 1
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the student’s checking ...
August 21, 2014

Biology
Diagram the genotypes of the P1 pea plants from the previous four questions by placing the correct answer on its correct place.
August 12, 2014

Math
How do I work this problem? A license plate is to consist of 2 letters followed by 5 digits. Determine the number of different license plates possible if repetition of letters and numbers is not permitted. is this correct 26*26*10*10*10*10*10= 67,600,000
July 9, 2014

Physics
a student pushes on a desk with a force of 75 N causing it to begin sliding. if the desk weighs 400 N then calculate the coefficient of static friction between the desk and the floor
July 8, 2014

math
-4x-4y=12 16y=-16x-48 identify the solution of the system or equatuions
April 19, 2014

CULTURAL DIVERSITY
A story narrative is probably Asian if it is i put B. episodic, event-driven,and contain judgmental remarks can someone check my answer
April 13, 2014

CULTURAL DIVERSITY
young children's functional use of language within a work context is often observed in ? i put D. native american cultures
April 13, 2014

exceptionall children
transactional relationship exist in families because .my answer is b. children and adults influence each others behavior
March 14, 2014

ENG 122
When using the BEAM style of evaluation, which of the following is UNLIKELY to occur? (Points : 1) Writers will probably meet all research needs. Writers will need multiple examples of all four kinds of sources. Any single source will probably feature more than one of the BEAM...
March 13, 2014

Science help ms sue.
c C B C C B B D A C C I got a 100 on this ;D
February 25, 2014

The Power of Media
#1. Which of the following is an example of a print medium? a) a blog b) a newspaper c) a magazine’s website d) all of the above ******* #2. Which of the following is an example of a public service announcement, or PSA? a) a commercial advertising an unscented detergent b...
February 25, 2014

Grammar
I know right! Thanks Steve! :-)
February 20, 2014

Grammar
Oops Sorry, Here is the correct way: At the end of some passages there ______ trapdoors into the dungeons. a.) are ******* b.) is
February 20, 2014

Grammar
Choose the right form of the verb for the sentence below: At the end of the some passages ___________ trapdoors into the dungeons. a.) are ******* b) is
February 20, 2014

Math-----Thanks Damon
Thanks Damon for checking my answers! :-)
February 19, 2014

Math ~ Check Answers ~
Shut up!
February 19, 2014

To Like_A_Boss
Like_A_Boss I said check not do my Homework! OK! so mind your own business!!!!
February 19, 2014

Math ~ Check Answers ~
A system of linear equations is shown below. 5X = 3y - 2 y = X + 4 What is the x -coordinate of the solution? a.) 2 b.) 4 ***** c.) 5 d.) 1 Jean needs to graph the function below. y = 7x ^2 + 8x -6 How many times should the graph of this function intersect the x-axis? a.) 3 b...
February 19, 2014

SCIENCE HELP ASAP! :)
Tell ur mommy to check it
February 19, 2014

SCIENCE HELP ASAP! :)
Do your own "Homework"!
February 19, 2014

social studies
OK.
February 13, 2014

social studies
during the early 1800s, the United States tried to make peace with countries in order to grow and develop. Give an example of one of these peace efforts and briefly explain what it hoped to accomplish. Can I use or write about the Louisiana Purchase?
February 13, 2014

social studies
during the early 1800s, the United States tried to make peace with countries in order to grow and develop. Give an example of one of these peace efforts and briefly explain what it hoped to accomplish.
February 13, 2014

cyber-bullying
Thanks !
February 13, 2014

cyber-bullying
Charles sends Julia text messages every morning insulting her appearance and threatening to hurt her. He writes unflattering description of her on blog and on his own personal website a. identity theft b. cyberstalking c. online arguing d. cyberbullying **** What is the best ...
February 13, 2014

math 1
1,350
February 12, 2014

social studies
During The early 1800s, the US tried to make peace with other countries in order to grow and developed. Give 2 examples of these countries and what the US hoped to accomplish.
February 12, 2014

Science
43Lb has a half life of 42 minutes. If you start with 100 grams, how many grams will you have after 84 minutes?
January 28, 2014

trig
write a formula f*g*h when f(x)=x+1, g(x)=3x, h(x)=4-x
January 12, 2014

physics
A pelican flying along a horizontal path drops a fish from a height of 4.3 m. The fish travels 8.3 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s
January 11, 2014

culturally diverse
CAN SOMEONE CHECK MY ANSWER
December 29, 2013

culturally diverse
D. native american cultures
December 29, 2013

science
Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the Paleozoic era. (2 pts) List and briefly outline the six different periods into which the Paleozoic era is divided. (6 pts)
December 19, 2013

Math
idk man I got the sameeeeee question yo!! lets havre a hotdog together BOIIIII XD
October 29, 2013

General Physics 2
A dead battery is charged by connecting it to the live battery of another car with jumper cables. Assume that V = 9 V and R = 0.80 Ù. Determine the current in the starter. Determine the current in the dead battery.
October 27, 2013

Physics
Consider two straight conductors of length 0.9m, carrying current of 19.9A and 12A respectively. If they are placed 0.3m apart, what is the value 10^6 ×F, where F is the magnitude of the force (in N) between these two conductors. Express the answer with one decimal place.
October 24, 2013

Algebra 1
THE PRODUCT OF G AND 2 IS LESS THAN OR EQUAL TO 6
October 15, 2013

Chemistry
What is the compound formula for Cation: Na+ and Anion: CN-
September 29, 2013

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