Monday
April 21, 2014

Posts by neha


Total # Posts: 88

proposal writing for high school english
how to write a proposal in brief for a 10 marks question? What structure should be followed for just 10 marks?

chemisry
Q2. Distinguish between the following- 1. CH3OH and C2H5OH 2. Phenol and methanol 3. 1-Propanol and 2-Methyl-2-propanol 4. Ethenol and 1-propanol 5. Propanol and propanone 6. Acetaldehyde and benzaldehyde 7. Benzaldehyde and benzoic acid 8. Propanoyl Chloride and propanoic aci...

probability
0.2

Math
When doing translation you have to write for example A(1,1) then when you write it you write A'(2,2) how would you write it to the fourth. Would you tally or do Roman numerals

Math
determine the value of k for which the fuction f(x)=4x^2-3x+2kx+1 has 2 zeros.

Math
hi in which standard r u , its just a simple sum , that means a very stupiod person is trying it out , but well iam the topper of the class i know this question well iam neha

math 12
A)a shed, in the shape of a square based prism, is to have volume 800meters cubed. determin the dimentions of the shed, with the minimum surface area. B)how would the answer change if the minimum surface area did not include the bottem of the shed? explain.

math
find the volume of cube,one face of which has an area of 64 m square

math g 11
the kwans will need $50,000 in 3years to expand their business. what is the equivalent value today if inflation is projected to be approx 3.5% per year compounded anualy

grade 11 math
at giant tv sales, you can chose between 2 payments options for a new tv. 1st option is 2 pay $2399.99. 2nd option is to pay a $399.99 downpayment plus $2200.00 after one year. if interset is 4.2% per year, compunded quarterly, wich option is a better deal

Chemistry
What you can predict about a reaction whose activation energy is zero?

Chemistry
On the basis of MOT, explain why the stability of N2 decreases on ionization but the inverse is true for O2.

Chemistry
Why Energy of is smaller than π2px and π2py in case of O2 but it is opposite in case of N2.

Chemistry
Determine the mass of CuSO4.5H20 needed to make 100.00mL of a .100M CuSO4.5H20 aqueous solution..

chemistry
What is the largest amount of H2O in grams that can be formed when 5.70 g of H2 reacts with 5.70 g of O2, based on the balanced reaction below. 2 H2 + O2 2 H2O

physics
the magnitude of 2 vectors are 4 and 5 units and the angle b/w them is 30,taking first vectoron x-axis.find the magnitudeof resultant vectorand its direction?

Chemistry
2 NO + O2 --> 2 NO2 The reaction rate is increased five­fold when the temperature is  increased from 1400 K to 1500 K. What is the activation energy for the reaction?&nbs...

Chemistry
The iodide ion can be oxidized in an acidic solution by hydrogen peroxide. One proposed mechanism for the reaction is as follows: Step 1: H2O2 (aq) + I-(aq) → H2O (l) + OI-(aq) slow Step 2: H+(aq) + OI-(aq) → HOI(aq) fast Step 3: HOI (aq) + H+(aq) + I-(aq) → ...

Physics
I saw a video in class that only had the backwards ball involved, and the backwards ball didn't move at all. So I'm wondering what the effect of the forward ball does to the problem.

Physics
You are riding on a flatbed truck moving at 50 kilometers per hour. You have two identical guns, one aimed forward and one aimed backward, and you fire them at the same time. According to an observer in the ground, 1. the backward bullet appears to move faster. 2. they both ap...

Chemistry
Rank the following solutions in order of increasing acidity. 1 M phenol 1 M boric acid 1 M cyanic acid 1 M formic acid 1 M hydrochloric acid 2. Rank the following solutions in order of increasing basicity. 1 M C3H5O3Na 1 M KF 1 M KOCN 1 M KOCl All I know is that HCl is the str...

Physics
A high diver of mass 69.4 kg jumps off a board 9.6 m above the water. The acceleration of gravity is 9.8 m/s2.If his downward motion is stopped 2.21 s after he enters the water, what average upward force did the water exert on him? Answer in units of N

Physics
that's what i did before, and it's still wrong

Physics
i redid it and got 1.205 which is wrong. can someone please help me?

Physics
I know that coefficients generally don't exceed 1, so I have no idea what to do

Physics
i got 26.95...seems high

Physics
oh wait nvm it can be N b/c force of gravity = weight

Physics
Sorry where it says ik it should be the microsign and then k

Physics
A box of books weighing 303 N moves with a constant velocity across the floor when it is pushed with a force of 400 N exerted down-ward at an angle of 38.6 degrees below the horizontal. Find ìk between the box and the floor. Well I know that I have to use netF = ma, so ...

physics
so Fg = 75*9.81 = 735.75 N Fnet = ma Fair - Fg = ma 96 - 735.75 = 75 * a a = -8.53 m/s2 Vf2 = Vo2 +2ax Vf2 = 0 + 2(-8.53)(-30) Vf2 = 511.8 Vf = -22.63 m/s //neg b/c downward direction

physics
A 100g golf ball moving with a velocity of 20 m/s, collides with an 8 kg steel ball at rest,if the collision is elastic,compute the velocities of both balls after the collision.???

physics
A 100g golf ball moving with a velocity of 20 m/s, collides with an 8 kg steel ball at rest,if the collision is elastic,compute the velocities of both balls after the collision.

numericals
A 100g bullet is firred from a 10 kg gun with a speed of 1000 m/s.What is the speed of recoil of the gun.

Physics
1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 = (p1/p2)(R1/R2)^3...I got this answer correct. I need...

Chemistry
But I thought that CO2 could be like O=C=O, O-C=-O, and O=-C-O. Thank you though, for your input. :) I'm sorry about just posting the questions again.

Chemistry
Sorry. Well, I know that CO2 has resonance forms, but SO3 and HCO2 have resonance forms too. So that's why I don't get which one is the answer because all of them have resonance forms. I guess I just don't understand the "hybrid" part of the question, whi...

Chemistry
Which of the following substances exist(s) as a resonance hybrid? CO2 (g) SO3 (g) HCO2- (aq) A. I only B. II only C. III only D. I and II only E. II and III only Ans w/i 12 hrs please!!

Chemistry
I got 2.67 and 5.33 (b/c I did 3x = 8 atm (2x for NH3 and x for N2). Is that on the right track?

Chemistry
Thanks for question 1. So what would the partial pressure be for the gases?

Chemistry
Nitrogen and hydrogen, with volumes of 12.0 L each, are injected into a sealed rigid reaction chamber containing a catalyst. The pressure of the chamber is 8.00 atmospheres and at a known temperature. The reaction is allowed to proceed to completion while being maintained at a...

Chemistry
92.01 grams of N2O4 (g) is placed in a container and allowed to dissociate. N2O4 (g) --> 2NO2 (g) The mixture of N2O4 and NO2 resulting from the reaction occupies 36.0 liters at a total pressure of 773 mmHg and 45 °C. A. Let x equal the moles of N2O4 that dissociate. Ho...

Chemistry
For each compound, draw a line structural diagram of all isomers. Identify the kind(s) of isomers illustrated. A. CH3CH=CHCH3 B. C3H7OH C. CHIFCl

Chemistry
What type of isomers are [Pt(NH3)2Br2]Cl2 and [Pt(NH3)2BrCl]BrCl? A. Structural B. Geometric C. Linkage D. Coordination E. Optical

Chemistry
Ok. Thanks once again!

Chemistry
But one of these has to be the answer.

Chemistry
You want to determine the molar heat of solution of sodium chloride using a 10.0 g sample of NaCl(aq) and 50.0 mL of water in a coffee cup calorimeter. Which of the following equations would you use? Assume the specific heat of the solution is the same as the specific heat of ...

Chemistry
Thanks!

Chemistry
In regards to DrBob222, there were 3 parts to this question; the first part said there were .1952 g and the mols were 2.504 * 10^-3 mol. But I don't know if this part refers to the first part because it doesn't sound like it does.

Chemistry
2NaF + CaCl2 ¨ CaF2 + 2NaCl An excess of 0.20 M NaF is used to precipitate the calcium ions from a 50.0 mL sample of a calcium chloride solution. What is the concentration of the original calcium chloride solution?

chemistry 101
8.75/34.02 (molar mass of H2O2) = .257 mol H2O2 Since the mol ratio b/t H2O2 and O2 is 1:1, there is also .257 mol O2 .257 mol * 6.02 * 10^23 = 1.55 * 10^24 molecules so the 3rd option.

AP Chemistry
2 Al + 3 Cu(NO3)2 --> 2 Al(NO3)3 + 3 Cu 1. Write balanced equations for the oxidation and reduction half-reactions. Identify each half-reaction as oxidation or reduction. 2. In the balanced overall reaction, determine which is the oxidation and reduction agent. 3. Which met...

Science
SORRY # 3 DOESN'T COUNT!!!

Science
1. I got a list of solutions. We did a test in the lab to figure out what was there pH. How do you figure out which one is the most acidic and the most basic? 2.When might you need to know whether a solution is acidic or basic? 3. Dishwasher detergent, oven cleaner, and drai

PreCalc
A contractor plans to build an artist's studio with a roof that slopes differently on the 2 sides. On one side, the roof makes an angle of 33 degrees with the horizontal. On the other side, which has a window, the roof makes an angle of 65 degrees with the horizontal. The ...

chemistry
The right answer is b. OH- and SO32-

maths
The mean of 10 observations is 21. If each score is divided by 3, find the new mean.

chemistry
A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 is 1.577g. what is percent by mas of water in the hydrated calcium sulfate salt

social studies
Between 1935 and 1957, a period that included World War II, the birth rate rose from 16.9 to 25 per 1000 people. What was the most likely cause of this "baby boom?"

7th grade
ex; 6o/10 = 30/5 20/40=10/20

college physics
the question is that what happened when the ozone layer becomes destroyed?

physics
the answer is 450j because work is always a product of displacement and force. so w=f*d w=30.0*15.0 w=450joles

religion
When jesus took the _________ one of the soilders took a lance or a sword and pierced his side.

science
suppose your mom is boiling water near the window where did the mist came from and why was there mist on the window

science
suppose your mom is boiling water near the window where did the mist came from and why was tehre mist on the window

Math
wat r the factors for 125-50-54 and 48?

11th grade
i need a written example of an article.

math
im guessing meijer but i dont know where to rescreah it?

math
which store is cheaper kroger or meijers?

6th grade
do people live in mars?

science
do people live in mars?

science
do people live in mars?

science
do people live in mars?

science
is anyone there

science
what is it called now and why

science
or is it called something else. i know its a draft planet is that it ? give me a clue plez

science
what is pluto called? i think it is a star is that correct. im doingit for extra credit. and why do they call it stars

science
how does a hurricane form?

social studies
WHAT IS THE TROJAN WAR?

english
thank u again

english
readers,knowledge,and daring

english
which are nouns? Readers admire his knowledge and his daring.

english
thank u

english
adventurer,mountains

english
which are nouns? This experienced adventurer loved to climb mountains.

science
what is the full name of RDF?

EVERYTHING
My motherland 21

Spelling/Analogy
hurricane is to breez as downpour is to?

Math(Geometry)
please help im maths sums of geometry

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