Saturday
December 10, 2016

Search: Chemistry.. help plz

Number of results: 59,058

LIVING ENVIRONMENT
the ability to grow in size is a characteristic of living organism .Although an icicle may grow in size over time,it is considered nonliving because there is 1)an incerase in matter ,but no increase in the number of icicle. 2)an interaction between the icicle and the ...
February 12, 2013 by tania sharmin

math
identify the value of x that makes each pair of the ratios equivalent x:4 and 45:20 A.8 B.9 C.10 plz plz plz plz help me!!!!!!!! PLZ!!!!!
November 2, 2015 by pankakes

I NEED HELP!!:(!!!! HELP ME PLZ!!
I GOT A FEW QUESTIONS SO what is a cell part that has the funcion of a gel-like material inside cells... and what releases energy into the cell.?? plz plz plz plz HELP!!!
October 20, 2009 by i really need help!!

math plz plz plz plz help plz .....thank you
mark bought a notebook for $1.45 and some pencils that cost $0.42 each if the total cost was 6.91,how many pencils did he buy A.12 B.13 C.14 D.15 is 14 the answer plz help thank you
November 23, 2015 by random rainbow

social studies? i think idk
what new ideas came from the automobile? plz help plz plz plz ASAP
December 5, 2015 by Geena

Math ....urgent help
i just don't get this elimination method ..... plz help me plz.....teach me how to keep the x and y in a parallel line. and which number to multiply.....plz help -5x-4y=-11 10x=-6-y help me plz......
January 7, 2009 by vero

SS plz help me plzzzzzzz
What are the two major forces that reshape earth? Describe how itworks. plz plz plz help me there are no answer choices hope u can still help
November 18, 2015 by #AriannaGirl :)

SS PLZ HELP ME ASAP
What are the two major forces that shape and reshape earth? Describe how each one works. plz plz plz help me there are no answer choices hope u can still help
November 18, 2015 by #AriannaGirl :)

biology
a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more than one pair of genes. ...
February 8, 2013 by tania sharmin

Chemistry chlorine plz help
A metal x forms two different chloride.if 12.g of chloride A and 16.3g of chloride B contain 7.1g and 10.7g of chlorine respectively,show that the figure agree with the laws of multiple proportions.write there formulea plz i need the work....no hint plz
January 12, 2016 by Daniel

plz plz help me belive me have tried
cosx+cosy=a and sinx+siny=b show that sin2x+sin2y=2ab(1-(2/(a^2+b^2)) plz plz show step
November 2, 2016 by maths

Geometry i need help urgently plz plz plz
The lenght of a line segement is of 10units and the co-ordinate of one end point are (2,-3) if the abscissa of the other end is 10 find the ordinate of the other end?? Working plz plz
October 18, 2015 by Collins

math
the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz
May 30, 2012 by parul

math
the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz
May 30, 2012 by PLZ HELP ME NOW...

maths plz
∫√(x²+1)/(x+1)dx plz show step i know it messy plz i really need it
October 6, 2016 by Anonymous

pscychology
Could someone pretty plz plz plz help me...What are the 2 biggest parts of the human brain??
March 11, 2009 by Logan:)

SCIENCE!!--ANONYMOUS PLEASE ANSWER MY QUESTION!
plz answer the question we were talking about plz plz. Go back to the problem. I got 184 but the worksheet answer says 136 which is correct?? plz help!! thx
September 13, 2010 by Happy Face

Maths plz help
X^x+y^y=31 x+y=5 plz help i was told to use newton litrate method plz help
December 18, 2015 by Collins

social studies idk
how did the automobile negatively impact society???!!!?!?! PLZ help me I have been on it since morning plz pretty plz cherry on top help me
December 4, 2015 by suzzie

physics!! plz answer me!
A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? plz plz plz help!!
December 10, 2007 by julia

maths
plz i cerious need help i posted dis qustion bt due 2 my wrong typing it was nt anser plz here it is:x^4+3x-2/(x^2+1)=Ax+B/(x^2+1)+Cx+D/(x^2+1)^2+(Ex+F)/(x^2+1)^3+G/(x-4)+(Hx+1)/(x-4)^2.find ABCDEFGH? plz it a partial fraction thank yo u and Godbless u
July 29, 2015 by anthony

chem
stilll didn't get it .. .. can u plz explain in detail ... how did u get the answer.. plz plz plz plz plzp l zp thnks Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj/mol S=O = 523 kj/mol Use average bond enthalpies ...
November 12, 2008 by DR BOOBB Plz HELP

maths
sir steve plz am a little confuse (x-y)³=A(x+y) prove that (2x+y)dy/dx=x+2y if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1-x)dy/dx plz explain to me very well sir damon answered that but i still dont get it If u want me to show my work i will do it sir plz plz ...
November 12, 2016 by practising and need help

Ms.Sue (ONLY)
can you plz help me in science? PLZ HELP ME! YOU HELP ALL THE TIME! *begs* plz help! i am my knees!!!!! (really i am!) its called "science 8th grade"
March 7, 2012 by sammie doodles :-)

grade 10 history
I have a SUPER HUGE project due called National History day and need lots of help with it, plz plz plz help!!!!!
January 20, 2013 by Macy

Plz,plz help!
Can you help me write: real-world scenario in which you would write an inequality rather than an equation? Plz, I really need help! :D
January 21, 2014 by Princess Anna

maths sir steve plz reiny plz sir damon plz help
express 1.1 in surd form pllllllz step
November 12, 2016 by Anonymous

Calculus i need help plz plz
Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx??? plz i need the full working too hard for me
October 21, 2015 by Collins

math plz help ;-;
What is the y-coordinate of the y-intercept of the linear equation 2x - 3y = 12? Plz help I don't understand how to do this can you show me step by step plz, sorry ;-;
May 31, 2016 by leo

maths sir steve plz reiny plz sir damon plz help
express 1.1 in surd form pllllllz
November 12, 2016 by Anonymous

Calculus i need help plz plz
If y=ws^3/d^4 find the % increase in 'y' when 'w' increases by 2% and 's' decreases by 3% and 'd' increasee by 1%...... There a little error in the first question i post here it is plz i need the working and explanation
October 18, 2015 by Collins

math
A water balloon is shot into the air so that its height h, in metres, after t seconds is h = —4.9t^2 + 27t + 2.4 a)How high is the balloon after 1 s? b)For how long is the balloon more than 30 m high? c)What is the maximum height reached by the balloon? d)When will the ...
January 23, 2009 by gagan

math
You want to cover a trapezoidal box with paper. You have a sheet of paper that is 1m by 500cm. What is the size box that can be made with minimal wastage? plz plz plz help me with this.. i don't understand how to do this
May 15, 2016 by Emily

Physics plz
Do any teacher here have an email plz becouse I want to send some pictures for question ,,, physics plz or how can I attach picture here ????
June 12, 2013 by Maryam

Function plz help!!!
If a function u(x,y)=arctan(y/x) deduce the laplace equation of the function. plz show working i don't no where to start from...plz thanks
December 12, 2015 by Collins

Chemistry!!! PLZ PLZ HELP!!
Calculate the equilibrium amounts of each susbtance in the reaction below if an initial amount of 0.1 moles of H2 are brought together with an initial amount of 0.2 moles of I2 and then equilibrium is established at 900K. Kc at this temperature=70. H2 + I2 <-> 2HI
May 30, 2016 by Sabrina

bio check plz plz plz
in human (2n=46) mitosis result 2 cell with 23 chromoses and meosis result in (n=23) 4 cell with 46 chromoses... is this statment true ? please help me ....
November 28, 2011 by hiba

SCIENCE HELP PLZ HELP PLZ
Which is one advantage of sexual reproduction? A. More offspring are produced ** B. More offspring survive to maturity C. The offspring have more genetic Variation D. The offspring and the parents are identical. PLZ HELP ME IS IT A?
January 25, 2016 by GoldenSparkleGirl

Urgent Chem help plz
is answer +103 KJ.. plz chk Plz explain in detail.... i tried to search on internet but i am confused with co-efficents.. how to set up the equaiton .. plz help me ??? Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj...
November 12, 2008 by Sarah

Calculus also need help plz plz plz
If z=1/(x^2+y^2-1) is x(dz/dx)+y(dz/dy)=-2z(1+z) or -z^2(1+z) note:dz/dx=partial derivative of x and dz/dy=partial derivative of y??
October 17, 2015 by Collins

calculus plz help me
Show that the numerical value of the radius of curvature at the point (x1, y1) on the parabola y^2=4ax is [2(a+x1)^3/2)]/a^1/2. If c is the centre of the curvature at the origin O and S is the point (a, 0), show that OC=2(OS) plz show me working plz
September 16, 2016 by marvin

social plz...................help me plz.........
Name the 6 seas of the " Fertile Crescent" / Middle East?
September 16, 2008 by Kaity

math
in the given figure,QRSis a straight angle.If a=2c,c=2b,b=d/3,what is the value of d?plz help me plz
February 14, 2013 by tania sharmin

Math plz help
Which rational number is equivalent to 3.90 with the .90 repeating? A. 3/90 B. 39/10 C. 35/9 D. 43/11 EXPLAIN PLZ
April 12, 2015 by Kimbo

Algebra
Plz help me! -12 divided by 3 •(-8 + (-4)^2 - 6) + 2 My teacher said the answer should be -6. But I don't know how to get to it. Plz Help!
September 9, 2015 by Salted Caramel

PLz help
How was society before the automobile was invented plz help me I need it for my powerpoint
December 4, 2015 by Jazzy@Sevensupergirls

calculus plz help me
integrate:dx/((x-1)sqrt(x^2-2) plz show solution i plead
May 5, 2016 by samuel

Science
idont understand anything about the big idea of energy plz plz Help
November 24, 2008 by Jammee

Trigonomentry plz help
tanA=ntanB sinA=msinB find cos^2A in terms of 'm' and 'n' plz help
December 19, 2015 by Collins

Science
Plz HELP me !!!!! I need to know a acrostic poem about safety plz help me it is due tomorrow
September 7, 2016 by Maddie

maths calculus need help plz
solve d^2y/dx^2+y=tanx show working plz i don't no it at all
September 20, 2016 by dams

local and state gov.
someone plz i really need help plz i cant find it in my text so someone plz!!! For a democracy right??? search google: branches of Government Click Bens Guide to Government for kids (1st or 2nd link) Then when you get there select your grade level in the ballon... This shows ...
November 12, 2006 by Cole

Math
Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.
January 13, 2013 by Abhishek

Math
Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.
January 13, 2013 by Abhishek

Math
Plz cud sombdy show me long division method of x^4/(x-1)(x^2+1)???? Plz note (x-1)(x^2+1) is in the denominator.
January 13, 2013 by Abhishek

Physics
Plz plz answer this question..... "what is ment by the energy-mass relationship?explain it with the help of examples.....
January 20, 2016 by Ali

maths plz help
Find the directional derivative of: ∅=(x+2y+z)²—(x—y—z)² at the point (2, 1, -1) in the direction of A=i—4j+2k. Plz help show me work
December 1, 2016 by ...

math need help plz
1/3+(-5/6)+(-1/2) can u help me solve this plz by using steps. thank u
August 24, 2009 by scooby91320002

Maths plz help!
4x^2+8x-m=0,differs by 3 find the value of the constant m plz help me??
December 18, 2015 by Collins

socail.....plz help
what are the major battles of the persian warsin greece. For each battle include the victor. and the dates......plz help
October 15, 2008 by Anonymous

geogrophy
Plz define the Gadani beach in paragraph minimum 100 words plz i got marks.
April 12, 2009 by Raghad

US HISTORY PLZ ANSWER MY QUESTION
name 1 person that was influential to delaware when it was first founded. plz n thnx!
September 20, 2009 by kayla

physics(URGENT!!!!!)
EDXers!!! Plz help with MITx 8.01x I don't know how to solve HW8 Problem 3 Question c) Can anybody help me???? Explain Plz
November 20, 2013 by Anonimus

SCIENCE PLZ HELP YES OR NO ANSWER
DOES THE GALAXY ANDROMEDA HAVE A SUN? I THINK IT DOESN'T BUT IM NOT SURE PLZ HELP THX! ~Sparkles_01
April 27, 2016 by Sparkles_01

maths plz help
give the expansion sin^8@ as a series of cos@ plz help me show working where @ means theta
September 21, 2016 by sam

Physics Help me Someone plz
If a galaxy is traveling away from us at 2.0% of the speed of light, roughly how far away is it? t= light years I got 2.4x10^8 light years but its wrong please help me out...thank you Physics Plz help me - Anon, Monday, May 6, 2013 at 9:17pm 5.98x10^6 Thatz still wrong Physics...
May 7, 2013 by Leila

sociology
hi people actually i need 2 do a project on sociology for 20 marks n i cant decide which on a topic ca u all plz help n v also need 2 have a survey or 30-40 interviews plz plz plz plz help its urgent It would really help us teachers if you would write in standard English so we...
August 13, 2007 by aditi

geometry
a cylinder water tower is three-fourths full of water.the tower is 24 feet tall and has a diameter of 28 feet.how much water is in the tower now? CAN SOMEONE PLZ PLZ PLZ HELP ME
February 24, 2010 by yuku

plz help me
Create a paragraph answering these questions: What were the benefits to society from the automobile? How was life easier? What changed? plz help me damon or anyone else
December 4, 2015 by Jazzy@Sevensupergirls

Trigonomentry help plz!!!
Sin3A=3sinA-4sin(x/2)^3 find x interms of A? PLZ show working got no ideal at all
January 18, 2016 by Emmanuel

physics
Plz plz answer this question..... I need this immediate.... "what is ment by the energy-mass relationship?explain it with the help of examples.....
January 20, 2016 by Akbar

social studies plz help.
does anyone have some answers on the new south west asia unit test!!!! plz help.
March 3, 2016 by ill never tell

help plz
some1 help wit my current post plz;)
April 2, 2010 by catherine

math
Ms.plz i have school tomorrow plz.its my H.W.
February 14, 2013 by tania sharmin

Science
I need to observe and identify variables and I'm in 6th grade!!! Help, this work is killing me....It's scenario 1-4 and I have Mr Jones plz help plz
August 31, 2012 by Destiny

math miss.sue can u plz check me answers plz
which of the following appears to be an irrational number? A. 3.7272727272... B. the root of 64 C. -6/25 D. 0.73303330...
November 19, 2015 by emma

Maths equation plz help urgently
0^x=100? Please help can complex number help plz show working find x i really need it
January 3, 2016 by Anonymous

calculus help me plz
integrate:dx/((x-1)sqrt(x^2-2) a tutor here direct me to a page but i do not know how to use it i tried but it did not show me any step...i need help plz
May 5, 2016 by samuel!!!!

Health PLZ HELP ASAP
There are four communication skills that have been proven to be very effective when sharing information. The four skills are: using "I" message, active listening, assertiveness,.....(I have to figure out the last one) A, Aggressiveness B, Body Language C, cooperation D, ...
October 26, 2015 by regan

calculus-help me sir~steve
show that 2f''(t)-f'(t)-f(t)=sin(t)-cos(t) where f(0)=f'(0) has the solution (-2/5)e^(-t/2)-(1/5)sin(t)+(2/5)cos(t) using laplace tranformation plz plz plz show step by step
May 26, 2016 by dam

socail.......urgnt plz.........
can anyone tell me any one place of the ancient greece.....and what were its movements?? and what comes under human - envorinment interaction??? plz........help
October 14, 2008 by Anonymous

MATH MID TERM TOMM PPL PLZ HELP
how do u draw an asymtote ? diff btwn set and interval notation? and example plz
April 15, 2010 by forki

PLZ HELP PLZ PLZ PLZ JUST ONLY 1 QUSTION!!!!!!!!!
A carrier is a person who has __________? A; one recessive and one dominant allele for a trait. B; two recessive alleles for a trait. C; two dominant alleles for a trait. D; more than two alleles for a trait.
January 25, 2016 by GoldenSparkleGirl

Lang. Arts PLZ HELP!!D:
I need some info about how the building of dams effect whitewater activities such as kyaking and conoeing..!!!plz help
February 26, 2009 by Alysha

ingqayizivele high
Am doing math lit ,geography,history n life sciences I dnt knw which career to choice can u plz help me .cal m 4 help on 0625113520 plz
August 30, 2015 by lebo

PLz help Bob
PLz help see below
October 17, 2006 by Svetlana

Math
F(x)=x^2-2x-3 plz help me slove this ? HELP ME I DO NOT UNDERSTAND THIS HELP ME PLZ
April 26, 2014 by DYLAN

Calculus help plz
Evaluate in (cuberootof(x+1)/(x-1)).1/(x+1)dx help plz
January 2, 2016 by Collins

PLZ CHECK ANSWERS
11.-3 7/9 - 1 2/9 A.-2 5/9*** B.2 5/9 C.-5 D.4 5/9 12. 6 1/3 - 4 4/9 A.2 1/3 *** B.2 2/3 C.1 8/9 D.1 2/3 11.-3 7/9 - 1 2/9 A.-2 5/9*** B.2 5/9 C.-5 D.4 5/9 12. 6 1/3 - 4 4/9 A.2 1/3 *** B.2 2/3 C.1 8/9 D.1 2/3 plz hep me!!!!!!!!!!!!!!!!1
November 2, 2016 by Connexus plz help

LA 2 questions plz help asap
A. Action that begin in the past and continues in the present B. Action that begins and ends in the present C. Action that begins in the present and continues in the future**** D. future action that begins in the past, extends to the present and continues into the future 2) ...
November 17, 2015 by #AriannaGirl :)

chemistry
Plz Help or give a highlight
March 7, 2009 by chemy

math
Tim wants his mean (average) quiz score in history class to be 90. His first 3 quiz scores were 86, 92, and 94. What score should he make on the 4th quiz in order to have a mean (average) quiz score of exactly 90? I really need the answer ! PLZ PLZ PLZ ! cant figure it outtt...
June 2, 2012 by felicia

sequence help!!!!! plz steve,reiny,damon,bob...anyone!!!!
find the expression in terms of n of the nth term of following squences 5,13,32,69,129,221....help plz show it work
March 16, 2016 by emmanuel

Science 1 question help plz thank you
Which of the following is not true about bias. A. Personal bias involves the influence of your own likes and dislikes B. Ethical bias involves basing a conclusion on too little data C. Cultural bias is influence from culture in which you grew up D. Experimental bias is a ...
August 10, 2016 by lilly

Tips Plz
Can you plz tell me some studying tips for math. How can i study math? is not like the other subject that i can just read through and memorize it. Math is hard to study because i know know how to study math when i have a upcoming test. Plz give me tips on how to study math and...
December 16, 2014 by Laura ♥

sociology
How about -- class structure in your town or school? prejudice about a particular ethnic group? classroom group projects? perceptions about authority figures? sorry i wrote in dat language i need to do a project in sociology for 20 marks and i am not able to decide on a topic ...
August 14, 2007 by Ms. Sue

chemistry
I need an edible suspension HELP!!! :o plz?? :)
December 1, 2010 by lizaperez956

science
Which law of chemical combination is illustrated by the fact that 168g fe reacts to from 232g Fe3 O4 and 8gH2 Plz give me the answer as am struck last to submit my assignment plz plzhelp me
December 4, 2015 by farheen fathima

P.E /.....
PLZ PLZ PLZ HELP. Trying to get over quiz Harvey has his heart set on making the state finals for his track team in the 100 yard dash. Although Harvey knows there are many factors to improving his time and becoming an elite sprinter, one skill is paramount to his success. ...
December 21, 2013 by Samantha

Biology question plz
Which of the following depends on bacteria? conversion of dead organic matter to fossil fuel photosynthesis dissolution nitrogen fixation I think its A but I feel it could also be D, could you plz help?
September 26, 2014 by Niki

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