Omar

This page lists questions and answers that were posted by visitors named Omar.

Questions

The following questions were asked by visitors named Omar.

Explain the fact that acetic acid can be extracted quantitatively from ether solution by dilute aqueous sodium hydroxide solution.

__Glycolysis is used to gain energy from glucose. How efficient is it (give an actual number) in its ability to get the energy from glucose into ATP? (assume the organism is undergoing anerobic fermentation). __You are studying a particular reaction in ce...

Problem P3-5A On September 1, 2002, the account balances of Rijo Equipment Repair Corp. were as follows: Nbr: Debits Nbr: Credits 101 Cash $4,880 154 Accumulated depreciation $1,500 112 Accounts receivable 3,520 201 Accounts payable 3,400 126 Supplies 2,0...

the teacher wants me to make a survey questions about a sample and get a statistical data from it, how? including variance and standard deveriation. thanks

find an equation for the plane that contains the line x = 2t-8, y=3t +3, z= 5- t, and the point (5,4,0)

I did a lab for Organic Chemistry I did a simple distillation for an unknown and found that it boiled at 76 degrees. I also found out that the unknown was ethanol since we knew what the 4 possibilities were and mine was closest to ethanol. I also did a fr...

density of ice 917 kg/m^3, density of sea water is 1025 kg/m^3, a piece of ice floating has a volume of 5.2 m^3, what is the weight of the heaviest bear the ice can support without sinking?

formic acid is a monoprotic acid with a ka at ml solutionof m of formic acid solution is titrated with m naoh what is the ph at the equivalence point

What quantity of HNO3 can be neutralized by 0.1L of 0.50 m NaOH

The problem is Find the difference quotient and simplify your answer F(x)=5x - x^2, F(5+h) - F(5) over h ^2 this means power of two

Find the exact value by using a half-angle identity. cos 22.5 degrees

A solution consisting of water and ethanol is found to have a refractive index of 1.3541 at 20 degrees C. The refractive indices at 20 degrees C of water and ethanol are 1.3330 and 1.3610, respectively. Determine the molar composition (in percent) of the...

what is the answer to 5z-1=?, 8s+4= etc. im thinking it is 5x3 (z=3)-1 equals 14. am I right?

By a unit fraction, we mean a rational number with a numerator of 1. Symbolically, 1 b where b is a nonzero integer. Find six distinct, positive unit fractions whose sum is 1.

Find all pairs of numbers such that when they are added they equal 100, and when they are multiplied they are at least 2000.

A pilot flying at an altitude of 3500 feet sees a baseball field at an angle of depression on 35 degrees. what is the pilot's approximate horizontal distance, x, from the baseball field at this point? round your answer to the nearest foot.

Volume of Prisms: Volume: 150 cubic inches Top Area: 10 square inches What is the height? {5-sided prism}

Base Area: 23 square inches Height: 11 inches What is the Volume of the hexagonal prism?

Top Area: 13 square inches Total Surface Area: 346 square inches What is the Lateral Surface Area of the 5-sided prism?

Top Area: 26 square inches Top Perimeter: 34 inches Height: 11 inches What is the Surface Area of the 12-sided prism?

Base Area: 22 square inches Lateral Surface Area: 308 square inches What is the Surface Area of the hexagonal prism?

Height: 10 inches Base Perimeter: 40 inches Lateral Surface Area: 400 square inches (^^^this is the total surface area of the sides) What is the Surface Area of the triangular prism?

Height: 10 inches Base Perimeter: 40 inches Lateral Surface Area: 400 square inches (^^^this is the total surface area of the sides) What is the Surface Area of the triangular prism? (the picture of the shape looks like a pentagon but the rectangle is muc...

A bottle of juice holds 3/8 gallon when it is full. If 1/3 of the juice has been poured out, how much juice is left in the bottle?

You pick up a 2.5kg can of paint from the ground and lift it to a height of 1.7m .How much work do you do on the can of paint? You hold the can stationary for half a minute, waiting for a friend on a ladder to take it. How much work do you do during this...

d(x)= (54x^10)/(24x^8 )please help

Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to learn!@!@!. 49X^6+7X^7/28X^8

what is the mass (by difference) of a sample if the initial mass of the sample in the bottle was 29.89-g and the final mass of the bottle and sample was 22.01-g ?

how many milligrams of calcium is in 1.229-g of calcium carbonate?

2 over 5m-14=9+3 over 5m

initially 0.25 mol of water vapour and 0.20 mor of carbon monoxide are place in a 1.00 L reaction vessel. at equilibrium spectroscopic evidence shows that 0.10 mol of corbon dioxide is present calculate K for the reaction

The MAVEN spacecraft, a NASA mission that is studying the Martian atmosphere, launched from Cape Canaveral in November 2013 on an Atlas V rocket. The rocket burns about 280,000 kg of fuel over 4 minutes (you can assume dm/dt is constant over that interval...

Jennifer drove at steady speed for 2 hours then reduced speed by 10 mph and drove for another 3 hours what was the initial speed if the total distance was 220 miles?

1) A telephone company has 10,000 phones in a certain city where the basic rate is $4 per month. The officials have evidence that if the charge is reduced the number of phones will increase at an estimated rate of 1,000 phones for each 25 cent reduction....

Solve the differential equation: dy/dx = (3x^2) / (y+1) with initial conditions x = -1, y = 2 I have: ∫y + 1 dy = ∫3x^2 dx (y^2 / 2) + y = x^3 + C (2^2 / 2) + (2) = (-1^3) + C? 4 = -1 + C 5 = c (y^2 / 2) + y = x^3 + 5 Is this correct?

How to use graphs to solve quadratic equations

Given that x=cos^2t and y=ln(sint) find d^2y/dx^2 at the point t=π/4

Explain the relationship between hepatitis and virus?

Admission cost to a theatre are adults $5,children $2. If 1000 people paid to enter the theatre and the total receipts were $3800. How many adults attended ?

Solve using long polynomial division (5x^2-x^2+x-2)/(x^2+2)

What is a complete living thing that carries out all basic life in processes. Example bacteria amoeba mushrooms Sunflowers human plants animal.

A molecule in a laser trap is confined to a region of 1um( micrometer). An incoming photon of known energy is scattered off it and bounces back in the direction it came, where its energy is measured. How broad is the measured energy peak ? Give your answe...

A child was playing with a toy car on a table of height 1.20 m. The toy car was moving with a velocity of 0.250 m/s and it fell off the edge of the table. How far from the edge of the table will the toy car land?

Findbin the simplest form the ratio between the perimeter of the triangle whose side lengths are 6cm ,8cm and 10cm. And the perimeter of the rhombus whose side length is 0.15m. I need this question please

The body of 1275kg car is supported on a frame by four springs, two people riding in the car have a combined mass of 153kg when driven over a pathole in the road ,the frame vibrate with a period of 0.84sec for the first few seconds, the vibration approxim...

What is the speed of a 70kg rock after it has fallen freely for 1000m

There are six people at a bus stop. Each person is half the age of the next person in line. The mean age of the group is 21. How old is the youngest person?

Pierre owns a restaurant. He has an overdraft line of credit. Each overdraft transaction costs $7.82, plus interest at 12%/yr. On Wednesday, Pierre had 4 overdraft transactions for $96.54. He paid back the money in 15 d. How much is the interest?

Answers

The following answers were posted by visitors named Omar.

Cual es el calor especifico de MgSO4?

10X+7y= amount of money earned X= hours tutoring constraints: X+Y less than or equal to 16 X greater than or equal to 3 X less than or equal to 8 Graph it and find coordinates of intersectoin, then plug them in and see which one gives you the most money

the treansrer form of the club budgets $60 for gasoline .The CuRRenT Gas Price is$a.95/gallon.the school van gets anaverage of 20 milesper gallon OF gasoline. Determins how many mlies they can drive on this budget. RounD your answer the nearest mile.

1025 is the density of sea water and 917 is the density of ice and 5,2 is the volume of the ice floating on the sea water

25 * ( sin 40 )

Sum of X forces = T = m1a = (30.5kg*a) Sum of Y forces = 125N - T = m2a = (12.5kg*a) 125N - (30.5kg*a) = (12.5kg*a) 125N = 43kg*2a 2.85m/s^2 = 2a 1.425m/s^2 = a

C(13,5) = 13!/(3!*10!) = 154440/120 = 1287

yes its A pentagonal prism

i still don"t get it

the picture of the shape looks like a pentagon but the rectangle is much longer

I still don't understand how to find the partial pressure of CO2. I've got the H+ concentration but I'm stuck at that step.

I solved the equation in quadratic since the equation has perfect squares x^2+2x-35+0 ax^2 +bx -c=0 split the bx into 7 and -5 then you have ,x^2 +7x -5x -35=0 then factorize the equation to get x(x+7)-5(x+7)=0 (x-5)(x+7)=0 then equate each identity to ze...

let the total t-shirts be x then, RED:3x/7 BlUES:x/3 Yellow: x-(3x/7 +x/3)=5x/21 we know reds are 20 more than blues therefore, 3x/7 =(x/3 +20) then solve for x by subtracting x/3 both sides (3x/7)-(x/3)=20 (2x/21)=20 ,multiply 21 both sides to eliminate...

We must make multiply or addition??

It seems like I'm answering this 5 years later, but this is for anyone who needs this in the future! Helium is a hydrogen-like atom. Using the fact that the ground state energy of hydrogen is 13.6eV, we can use the relation: E = 13.6eV(z^2/n^2) to calcula...

But other than solving for y, is it correct?

Emilio has 67.6 of trees

Gaff BBC dying vs as think long day in cf

Thanks for making it straighforward and simple, not even chegg could help me with this one this time

H2s + Pb(NO3)2 : 2HNO3 + PbS But i am not sure of the average rate , can you please tell me the answer?

oh i meant to say (5x^4-x^2+x-2)/(x^2+2)

It all depends on the type and strength of the intermolecular forces between the molecules. Consider these 3 main types: Permanent Dipole-Dipole forces, Hydrogen bonds, and Dispersion forces. Firstly, dipole-dipole forces. All examples above have polar bo...

This is so hard

I don’t know how the answer is 27?

It is B because in algebra you write out the sum and it is asking for the algebraic expression. Hope this helped

sthu someone :) you weird

no i am doing good on my own

I will thank you

big black C*** are the answers