Yesenia
Most popular questions and responses by Yesenia
Chemistry
A reaction of the form aAproducts is secondorder with a rate constant of 0.225 L/(mol/s). If the initial concentration of A is 0.293 mol/L, what is the molar concentration of A after 35.6 secs?
asked on September 26, 2010 
chemistry
what is the delta u when 1.00mol of liquid water vaporizes @ 100C? The heat of the vaporization, delta h, of water @ 100C is 40.66kj/mol
asked on November 17, 2010 
statistics
How heavy a load (pounds) is needed to pull apart pieces of Douglas fir 4 inches long and 1.5 inches square? Here are data from students doing a laboratory exercise: 22565 28373 25826 26468 27508 23401 24998 32436 25405 29235 29679 33661 27775 28517 30371
asked on March 1, 2011 
physics
A batted baseball leaves the bat at an angle of 35.0 degrees above the horizontal and is caught by an outfielder 370 ft. from home plate at the same height from which it left the bat.
asked on September 22, 2011 
earth
The capital letter(s) that label a rock unit (e.g., KJk) on a geologic map represents the rock unit's
asked on July 5, 2013 
Statistics
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures students' study habits and attitudes toward school. Scores range from 0 to 200. The mean score for college students is about 119, and the standard deviation is about
asked on March 1, 2011 
statistics
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures students' study habits and attitudes toward school. Scores range from 0 to 200. The mean score for college students is about 115.8, and the standard deviation is about
asked on March 1, 2011 
Math
If I listen to a 3 minute and 19 second song on repeat for 12 hours how many times did the song play?
asked on September 6, 2019 
physics
A ray of light passes from air into water. The incident angle is 30o. Find the index of refraction of water if the angle of refraction is 22o. Ans. 1.333
asked on November 16, 2010 
Math
A package weights 96 ounces what is the Weight of the package in pounds
asked on February 12, 2019 
physical science
push a box across a tablewith a force of 5 newtons and the box moves 0.5 meters. how much work is been accomplished?
asked on January 30, 2013 
math
Susan’s test scores are 93, 85, 88, and 90. What does she need to score on the next test to raise her average to 90?
asked on July 21, 2014 
algebra
How do i solve 3x+(2x5)= 132(x+2)
asked on October 30, 2010 
MULtiplying Binomials
WHATS (3N+2)(N+3)
asked on December 6, 2009 
life skills
It is important to make sure that any person selling you a car has? A. physical possession of the vehicle. B. informed the motor vehicles department of the intention to sell the vehicle. C. legal title to the vehicle. D. a good reputation for honesty.
asked on June 5, 2012 
ALGEBRA 1
what is 2(x+1)+2=3x4
asked on August 23, 2009 
biology
when a black angus has ofspring that come out brown or just spotted brown..what is the cause of it?
asked on October 21, 2007 
math
39% of 19
asked on March 9, 2014 
Math
The ratio of the weight of Philipe's gerbil to the weight of Dana's gerbil is 4:7. When both gerbils are placed on a scale, the scale reads 99 ounces. how much does Dana's gerbil weigh?
asked on January 23, 2012 
science
i want to know what is the cause of lack of oxygen in blood.
asked on April 14, 2009

math
Catherine, Please show your work. Damon, from (n24)  (2/7)(n24)=n/2, how did you get "14?" What made you decide to multiple each side by 14?
posted on June 23, 2019 
statistics
0.8962
posted on April 26, 2019 
Math check?
Use a graphing calculator or other technology to answer the question. Which quadratic regression equation best fits the data set? A. yˆ=0.728x2+20.213x+179.246 B. yˆ=0.728x2−20.213x+179.246 C. yˆ=179.246x2−20.213x+0.728 D. yˆ=0.728x2+0.564x+179.246
posted on April 1, 2019 
World history; Check:P
hey I have a question to the one who wrote those few sentences?
posted on January 25, 2019 
world history
whats the answer
posted on January 17, 2019 
Ancient history
hey whats the answer?
posted on January 9, 2019 
Algebra
its 3.5 hours A.
posted on September 6, 2018 
Math. (Please Help)
d 281,059.48
posted on May 8, 2018 
math
20000+4000000+80000+4000+100+60+3
posted on December 5, 2016 
physics
I am very confused with this problem and as to how the answer is found but the correct answer is the following boat a wins by 42km and the average velocity of the winning boat is 0(zero). I got it right by practicing a webassign problem.
posted on October 4, 2015 
physics
general formula: V=distance/time in this problem we are looking for the time, so adjusting our general formula we need to get time as our isolated variable. time=distance/velocity time: ? distance: 1.8m velocity: 100m/s therefore: t=1.8m/100m/s using your
posted on October 4, 2015 
5th grade math
120 people were at a park.75 people came.how many people are at the park now?
posted on September 30, 2014 
College Chem II
.0032
posted on October 2, 2013 
algbrea
a triangle has a perimeter of 23 in. the medium side is 3in more then the shortest side and the longest is twice the shortest side fine the shortest side?
posted on August 24, 2012 
6TH GRADE MATH HELP!!!
what is the mat method?
posted on April 4, 2012 
WRITING
its okay
posted on May 9, 2011 
chemistry
the answer in the back of the book says 37.56 KJ
posted on November 17, 2010 
8th grade
900cm
posted on January 7, 2010 
Multiplying Binomials
WHATS (3N=2)(N+3)
posted on December 6, 2009 
science
I am suppose to write different examples of plasma, liquid, gas ,and solid and so far I got that water is a liquid and I put you can change the volume or the shape.
posted on October 29, 2007