Ross
Popular questions and responses by Ross
Chemistry
I wanted to now what is the molecular geometry of SeBr4, because I believe is a trigonal bipyramid...but I am not sure...please help me.... I thought it was a seesaw shape. See http://www.stolaf.edu/depts/chemistry/mo/struc/explore.htm You can see SeF4,
asked on April 20, 2007 
9th grade
Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers
asked on September 20, 2010 
physics
a modified Utube: the right arm is shorter than the left arm. The open end of the right arm is height d = 10.0 cm above the laboratory bench. The radius throughout the tube is 1.60 cm. Water is gradually poured into the open end of the left arm until the
asked on November 4, 2010 
NSU
The Omega pharmaceutical firm has five salespersons, whom the firm wants to assign to five sales regions. Given their various previous contacts, the salespersons are able to cover the regions in different amounts of time. The amount of time (days) required
asked on August 26, 2010 
MATH
Find the word form 0.007 a. seven hundredths b. seven tenths c. seven thousand d. not given I selected a. seven hundredths
asked on October 3, 2009 
Geometry
How is constructing a perpendicular bisector similar to constructing an angle bisector? How is it different?
asked on October 31, 2017 
math
a ball tossed to a height of 4 meters rebounds 40% of its previous height. the total distance travelled by the ball by the time it comes to rest is?
asked on March 10, 2013 
chemistry
Strychnine, C21H22N2O2(aq) is a weak base but a powerful poison. Calculate the pH of a 0.001 mol/L solution of strychnine. The Kb of strychnine is 1.0 x 10^6 My work: I called Strychnine SN SN + HOH > SNH+ + OH Kb = (SNH+)(OH)/(SN) (SNH+) = x (OH) =x
asked on April 7, 2008 
chemistry
For the titration of 20.0 mL of 0.1500 mol/L NH3(aq) with 0.1500 mol/L HI(aq)(the titrant), calculate a) the pH before any HI(aq) is added b) the pH at the equivalence point
asked on April 6, 2008 
Life orietation
Six suggestion on how to address the example of human rights violation
asked on April 7, 2019 
math
Simplify the expression. 17 – 6 × 10 ¸ 2 + 12 a. 67 b. 59 c. –1 my answer 1 ?????
asked on September 20, 2010 
chemistry
Strychnine, C21H22N2O2(aq) is a weak base but a powerful poison. Calculate the pH of a 0.001 mol/L solution of strychnine. The Kb of strychnine is 1.0 x 10^6 My work: I called Strychnine SN SN + HOH > SNH+ + OH Kb = (SNH+)(OH)/(SN) (SNH+) = x (OH) =x
asked on April 7, 2008 
History
Why did the cost of slave labor double, even after the invention of the cotton gin? A. The demand for enslaved workers for the cotton fields was high, but the supply of workers was low due to the slave trade ban. B. Northern enslavers refused to sell their
asked on September 27, 2019 
History
How could free African Americans help their enslaved contemporaries? Select the best answer from the choices provided. A. They could participate in the Underground Railroad. B. They could support abolitionist politicians. C. They could subscribe to The
asked on September 26, 2019 
Biology
1. A longterm relationship in which both species benefit is known as parasitism. * A. True B. False*** 2. The relationship of algae living in the fur of a 3toed sloth and helping to camouflage the sloth, is called * A. symbiosis B. mutualism C.
asked on November 6, 2017 
Physics
Hello, I really don't get something about work and I would like that someone help me, Please. .. Well I have an exercise about two objects that are connected by an ideal rope that pass through a pulley that has a moment of inertia, so my problem is: when I
asked on December 24, 2016 
Physics
The drawing shows a skateboarder moving at 5.71 m/s along a horizontal section of a track that is slanted upward by 49.8 ° above the horizontal at its end, which is 0.516 m above the ground. When she leaves the track, she follows the characteristic path
asked on October 16, 2014 
Chemistry
What volume of 0.109 M nitric acid is required to neutralise 2.50g barium hydroxide?
asked on June 16, 2014 
algebra 2
what is 7 1/5 written in radical notation
asked on May 19, 2014 
Biochem
You have prepared a 400 mL of a .210 M acetate buffer solution with a pH of 4.44. 1. Determine the concentration of both the acetate and acetic acid in the solution. 2. If you made this solution using solid sodium acetate (MW = 136 g/mol) and liquid acetic
asked on September 24, 2013 
Math
the larger of the two numbers is 8 more than twice the smaller. The sum of the numbers is 10 less than three time the larger. Find the numbers
asked on March 28, 2013 
science
what type of a drink did not floated or sank?
asked on September 22, 2012 
maths
solve 4x/3x+1 = 3?x+5
asked on January 18, 2012 
poem
i read this book named abduction and my home work is to write a poem about it but the problem is i don't know how to write poem ?
asked on April 10, 2011 
Physics
a modified Utube: the right arm is shorter than the left arm. The open end of the right arm is height d = 10.0 cm above the laboratory bench. The radius throughout the tube is 1.60 cm. Water is gradually poured into the open end of the left arm until the
asked on November 4, 2010 
science
Which would be most appropriate to measure the mass of my pet panda in? a. kilograms b. centigrams c. Gigagrams d. milligrams its kilograms??????
asked on September 20, 2010 
science
Evaluate the following expression when r = 2 and t = 5. (2r)t  2 a. 1022 b. 16 c. 64 d. 62
asked on September 12, 2010 
10th grade
A computer manufacturer assembled 21,000 computers in October. For the month of November, they expect to double production. If a worker can assemble one computer per day, how many workers will be needed to complete the job in 28 days? a. 1,500 workers b.
asked on September 9, 2010 
math
It takes 28 minutes for a certain bacteria population to double. If there are 4,241,763 bacteria in this population at 1:00 p.m., which of the following is closest to the number of bacteria in millions at 4:30 pm on the same day?
asked on September 9, 2010 
Probability
A number cube, numbered 1 through 6, is rolled once. What is the probability of rolling an even number that is not prime? 1/6 1/3 1/2 2/3
asked on July 22, 2010 
math
7. A bag contains 2 red cubes, 3 blue cubes, and 5 green cubes. If a cube is removed and replaced in the bag and another is drawn, what is the probability that both are green? 1/4 3/8 2/5 1/2
asked on July 22, 2010 
Algebra
Please help me I have been trying to get the answer and for some reason is not coming up correct can someone please help. evaluate the polynomial for x=1 3x^24x+6
asked on April 15, 2010 
Geometry
Planes A and B are both perpendicular to line M. What is the relationship between planes A and B?
asked on April 12, 2010 
algebra
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,
asked on March 23, 2010 
algebra
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,
asked on March 23, 2010 
4th grade
how would i put these words in sentences:(PLEASE HELP ME) THANK YOU! l. general 2. inaccurate 3. interpret 4. evidence 5. demonstrate 6. relevant I start my tutoring classes in two weeks. I have been reading much more which should help me.
asked on October 18, 2009 
MATH
I THINK a. 4,000 is the answer am I right
asked on October 3, 2009 
MATH
hello The question is round to the digit underlined Add or subtract? 7 is the underlined digit. 7,5263,861. a. 4,000 b. 5,000 c. 3,000 d. not given
asked on October 3, 2009 
math
math ? FIND THE VALUE OF 5  35,791 a. five hundred b. five thousand c. five thousandths d. not given I selected  b. five thousand correct? or not?
asked on October 3, 2009 
4th gradeMATH
Are there any websites that will help me with my division?
asked on September 20, 2009 
MATH
I DESPERATELY NEED TO KNOW HOW TO READ A PLACE VALUE CHART DEALING WITH DECIMALS IF ANYONE CAN GIVE ME AN EXAMPLE??
asked on September 14, 2009 
MATH
I DESPERATELY NEED TO KNOW HOW TO READ A PLACE VALUE CHART DEALING WITH DECIMALS IF ANYONE CAN GIVE ME AN EXAMPLE??
asked on September 14, 2009 
Math Quotations place value
Good evening, I am not sure if Ross wrote the questions for homework correctly however, I am a little confused as to the difference in hundreds place value vs. hundreths place value is there such a place value as HUNDRETHS? Would HUNDRETHS APPLY TO DECIMAL
asked on September 10, 2009 
math
please, does anyone know of a site I can go to online to help my son with some simple practice division? THX!!!
asked on May 4, 2009 
division
how can I learn simple division
asked on May 4, 2009 
RS
How do Christians help others?
asked on February 2, 2009 
3rd grade
Good evening ~ I have 2 questions. Kelsey was assigned math homework. He was given 8 word problems to solve. He estimated that it would take him 5 mins. to solve each problem (THAT WOULD TAKE 40 MINS. FOR KELSEY TO COMPLETE HIS MATH HOMEWORK) ? HOW TO
asked on December 4, 2008 
3rd grade
how do I write the time in three different ways for 3:50
asked on December 2, 2008 
Math
What do we call the nunmbers that cannot be arranged ito 2row arrays
asked on September 6, 2008 
science
what is meant by an animal or plant being in the same species
asked on June 18, 2008 
chemistry
Calculate the solubility of calcium sulfate 0.010 mol/L calcium nitrate at SATP
asked on April 7, 2008 
chemistry
Calculate the pH of the following aqueous solutions: 1.00 mol/L sulfuric acid H+ = 1.00 M for the first ionization THe second one is guided by K2 K2 = (H+)(HSO4)/(HSO4) Plugging in K2 as follows: H+ = 1.00 + x SO4 = x HSO4= 1.00  x Can someone please
asked on April 7, 2008 
chemistry
Please calculate the pH and [H+] of a 0.30 mol/L solution of butanoic acid,. The Ka of butanoic acid is 1.52 x 10^5
asked on April 7, 2008 
chemistry
In a titration, how many millilitres of 0.23 mol/L NaOH(aq) must be added to 11 mL of 0.18 mol/L HI(aq) to reach the equivalence point?
asked on April 6, 2008 
chemistry
To clean a clogged drain, 26 g of sodium hydroxide is added to water to make 150 mL of solution. What are the pH and pOH values for the solution?
asked on April 6, 2008 
Algebra
3 x x factor completely x to the third power x
asked on December 18, 2007 
English
What is the theme of the Medusa myth?
asked on November 6, 2007 
Nature
I am researching about why water is blue. I am wondering why is the water in the Caribbean bluer that that of the North Atlantic? Thank you for using the Jiskha Homework Help Forum. This is an interesting question and here are some sites to explain it:
asked on February 28, 2007

History
I thought this website will help me get the answer. I know what to search but Im in a hurry
posted on September 26, 2019 
History
Haiti??
posted on September 26, 2019 
history
@lavagirl thanks dawg but #3 is A. still got 80% 👌
posted on May 16, 2019 
Math
Thanks ms sue I got 100% Guys ms sue is right B C D C
posted on March 22, 2019 
Social Studies
My answer is a
posted on March 7, 2019 
maths
Please add some explanation to this.
posted on November 5, 2018 
science
idkkk
posted on September 19, 2017 
science
trovants
posted on March 30, 2017 
math 214
yes because they never touch
posted on January 31, 2017 
math
15*w+1.5(15)*y 15w+22.5y Week=7 days. 7(15w+22.5y) 105y+157.5y hours
posted on December 14, 2015 
math
Insert parentheses to make statement true 6+7x42=26
posted on September 2, 2015 
math
n=12 n+11=48
posted on March 15, 2015 
Chemistry
Where do you substitute Kc into the expression?
posted on April 12, 2014 
physics
An object is dropped onto the moon (gm = 5 ft/s2). How long does it take to fall from an elevation of 250 ft.?
posted on February 22, 2012 
Year 12 can't do year 7 simple mathhelp
i cant tell the difference .... i cant even do it and im in year 12
posted on March 28, 2011 
Math
Wpw, way to post Ross problems on here.
posted on March 25, 2011 
math
p = 160/21~7.62
posted on November 4, 2010 
science
Evaluate the following expression when r = 2 and t = 5. (2r)^t  2 a. 1022 b. 16 c. 64 d. 62
posted on September 12, 2010 
business
would like to see an example of what the plan should look like to get me started.
posted on September 10, 2010 
10th grade
1,500 workers
posted on September 9, 2010 
Probability
Help please
posted on July 22, 2010 
math
Please tell me if this is correct 1/2
posted on July 22, 2010 
math
Please tell me if this is correct 7/20
posted on July 22, 2010 
Probability
1/2 Please tell me if this is correct
posted on July 22, 2010 
Probability
1/16 Please tell me if this is correct
posted on July 22, 2010 
Algebra
that will be 5 so you are saying that my answer is 5? I though that because it was positive my answers was going to be differents. For example I had x=1 4x^3+8x3x2 and after doing all the problems my answer was 13, but the x was a negative one that was
posted on April 15, 2010 
physics
The way I solved the first part of the question was: Vo=? d=7.18 m Vf = 7.80m/s a = 9.81m/s^2 So find the initial Vo velocity using: Vf^2  Vo^2 = 2ad Then once you get Vo, use the same equation to find the d, when Vf = 0, that's when the height is
posted on April 12, 2010 
MATH
I THINK a. 4,000 is the answer am I right
posted on October 3, 2009 
math
thanks much!!!!
posted on May 4, 2009 
3rd grade
Just would like to know if you have any suggestions on how I would help my son tell time better. He really struggles with this. Thankks!
posted on December 2, 2008 
3rd grade
thank you thank you thank you!!!
posted on December 2, 2008 
making dot arrays
odd numbers
posted on September 6, 2008 
chemistry
I am still getting the wrong answer. YOu are positive this is the answer? Perhaps my computer system is wrong?
posted on April 7, 2008 
chemistry
0.003898 this is H+? Ka = ( )(0.00398)/( ) What would be the concentration of C6H5COO ?
posted on April 7, 2008 
chemistry
Wow , thanks you are a really excellent expert! :)
posted on April 7, 2008 
chemistry
Thank you! I still have to read over it but for now I beleive I got the jist of it
posted on April 6, 2008