Ley

Newest questions and responses by Ley

  1. Chemistry

    1. When adding the sodium borohydride solution to the vanillin solution, why are you told to do so in a dropwise fashion? -So you don't accidentally spill any sodium borohydride -To prevent formation of unwanted vanillin byproducts -to prevent formation of

    asked on March 19, 2015

  2. Chemistry

    (For fischer esterification) If you had collected the forerun from your distillation and tested it in the gas chromatograph, what would the most predominant compound be? -Isopentyl alcohol -Isopentyl acetate -Water -acetic acid

    asked on February 21, 2015

  3. Algebra 1

    What is an equation of a line perpendicular to the line with equation y = 1 - 3x a.y=-3x + 5 b. y=3x + 5 c.y=-1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= -6 5x - 3y = -16 a. substitute -4y-6

    asked on April 22, 2013

  4. Algebra 1

    1.To solve the linear system below, which substitution of unkowns is proper ? A.substitute 5x-16 for y in the first eqn B.substitute 5x+16 for y in the first eqn C.substitute 5x+12 for y in the first eqn D.substitute 7y-4 for x in the second eqn 2.A line

    asked on April 18, 2013

  5. Algebra 1

    1.What is the value of x-y if 5x-3y=3 and -x+3y=9 ? 2.Rewrite -2x^-1 /x^2y^-1 with positive exponents 3. What is the value of xy if x+5y=26 and -x+y=4 ?

    asked on April 18, 2013

  7. math

    The odds for being assigned homework are 5.5 to 1. Find this expressed as a probability.

    asked on April 20, 2012

  1. Social Studies

    YOU GUYS LIED the correct answers are 1: B 2: C 3:B 4:D 5:B

    posted on October 1, 2018

  2. Science(Stuff to do like with magnets!)

    lorenze is right got them right 100%

    posted on October 1, 2018

  3. science

    18

    posted on July 11, 2016

  4. Computer Programming

    We have the same problem. My prof gave me the output program but not the input. :3

    posted on October 7, 2015

  5. Chemistry

    Question: When adding sodium borohydride solution to the vanillin solution, why are you told to do so in a dropwise fashion? A. So you don't accidentally spill any sodium borohydride B. To prevent formation of unwanted vanillin byproducts C. To prevent

    posted on March 20, 2015

  6. Algebra 1

    To rbowh I do not know how to solve them, that is why I'm asksing for help,

    posted on April 23, 2013

  7. Algebra 1

    Thank you Reiny

    posted on April 19, 2013

  8. Algebra 1

    Yes,but is that the answer to#2, because the multiple choice answers are:A.-2x^3y B.2x^3/y C. -2y/x^3 D.-2y/x E.2y/x Which one is it,please help me Reiny.

    posted on April 18, 2013