# Posts by KAYLA

Total # Posts: 1,463

**math**

a pool in the shape of a circle measures 10 feet across. One cubic yard of concrete is used to create a circular border of uniform width around the pool. If the border is to have a depth of 3 inches, how wide will the border be (1 cubic yard=27 cubic feet)

**history**

are there any popular Us history debates that i could write my thesis statement on?

**math**

A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

**math**

I can't get this question. what is the rule in this problem: 8,27,64

**Maths - Recipricals**

How many 3/4 are in 3?

**physics/science**

My teacher put Marti Gras beads in a plastic beaker she pulled some beads out and let them fall to the ground. It looked as if the beads were not touching the rim of the beaker and was just flying over it. What exactly was it doing?

**chemistry**

A 0.500M solution of a weak acid, HX, is only partially ionized. The [H+] was found to be 4.02 x 10^-3 M. Find the dissociation constant for this acid.

**chemistry**

What is the pH if the hydrogen-ion concentration is 6.8 x 10^-7 M?

**chemistry**

Calculate the hydrogen-ion concentration [H+] for an aqueous solution in which [OH-] is 1 x 10^-11 mol/L. Is this solution acidic, basic, or neutral?

**chemistry**

Calculate the concentration of a silver ion when the solubility product constant of AgI is 10^-16

**chemistry**

What is the equilibrium constant for the following reaction? 3A + 2B <---> 2C

**chemistry**

A 55.0-g piece of copper wire is heated, and the temperature of the wire changes from 19 degrees C to 86 degrees C. The amount of heat absorbed is 343 cal. What is the specific heat of copper?

**chemistry**

Describe the parts of a calorimeter and the function of each part.

**chemistry**

Which of the following usually makes a substance dissolve faster in a solvent? A: lowering the temperature B: decreasing the number of particles C: agitating the solution D: increasing the particle size of the solute

**chemistry**

If a crystal added to an aqueous solution causes many particles to come out of the solution, the original solution was___? A: saturated. B: an emulsion. C: supersaturated. D: unsaturated

**chemistry**

A 10-g mass of krypton occupies 15.0 L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790 kPa.

**chemistry**

Explain what a saturated solution is. Give a specific example.

**chemistry**

Describe the structure of the water molecule and indicate how this structure is responsible for many of the unique properties of this vital compound.

**chemistry**

Thank you, that's what i did, And i got the answer right!!

**chemistry**

I have no idea how to do these questions. So i don't know.

**chemistry**

A mixture of gases at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2 is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?

**chemistry**

Thank you for both!!

**chemistry**

A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?

**chemistry**

The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?

**chemistry**

A crude oil burned in electrical generating plants contains about 1.2 % sulfur by mass. When the oil burns, the sulfur forms sulfur dioxide gas: S (s) + O2 (g) = SO2 (g). How many liters of SO2 (d=2.60 g/L) are produced when 1.00X 10 to the 4th kg of oil burns at the same ...

**chemistry**

Now "react" methane (CH4) with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). Start with one molecule of methane and one molecule of oxygen. Continue reacting molecules of CH4 and O2 until all the reactant atoms have been used to form products. ...

**chemistry**

36 colored paper clips (12 each of 3 different colors) 1.Each paper clip represents a single atom. Designate a different color of paper clip to represent atoms of oxygen (O), hydrogen (H), and carbon (C). Makes two molecules each of hydrogen (H2) and methane (CH4) and six ...

**economics**

Thank you!

**economics**

Analyzing Information Discuss the benefits and problems associated with multinational corporations establishing production facilities in an LDC.

**algebra**

How do I factor a^2-10ab+3b^2?

**Physics**

A man pulled a nail our of a board with a crowbar. The nail was 2 in. from the fulcrum of the crowbar, and the effort applied was 36 in. from the fulcrum. If the theoretical effort applied was 10 lb., what was the force of friction between the board and the nail? How far did ...

**Physics**

and 49 m/s for the final velocity

**Physics**

actually, i got 122.5 m for the position

**Physics**

How would I know what the initial height is?

**Physics**

A ball is dropped from rest and falls for 5 s. What are its position and velocity at that instant? So the variables I can define are v1=0, v2= x t=5 Other than that I don't know what to do in this problem. I'm assuming position is the height so I'm looking for ...

**physics**

an arresting device on a carrier deck stops an airplane in 1.5s. the avg. acceleration was 49 m/s2. what was the stopping distance? what was the initial speed? so i think v2=0, t=1.5, a= 49, so i need d and v1. i got v1=73.5 m/sec and d= 55 m. i took 0=v1-49(1.5) to get that ...

**chem**

how would you set this problem up? An unknown gas effusees at .850 times the effusion rate of nitrogen dioxide, NO2. Estimate the molar mass of the unknown gas.

**Music**

Hey I am just wondering what I should do for an ABBA themed backround

**chem**

if the length of Mg is 2.7 cm and the mass per meter of Mg is .981 how do i find the mass of the Mg?

**chem**

Given the length of Mg in cm and the mass per meter of Mg, how do i find the mass?

**Macroeconomics**

Assume that preferencse are given by u(c,L) = 2*ln(c) +ln(L). The wage rate is $15 and the person has 120 hours of time available. Profits are 0. Taxes are 0. Write down two equations that describe the constraints faced by this consumer. Find an equation for the Marginal Rate ...

**math**

How can I figure this out? Five integers have an average of 69. the median is 83. the mode is 85. the range of the 5 integers is 70. what is the second smallest of the 5 integers?

**math**

The minute hand is pointing ot the twelve. The hour hand is perpendicular to the minute hand. What two times could it be?

**government**

"The united states in congress assembled shall never engage in war...nor coin money,nor regulate the value thereof, nor [spend] the sums and expenses necessary for the defense and welfare of the united states...nor borrow money on the credit of the united states...nor ...

**chem**

how would you figure this out? if 500 mL of hydrogen are colected over water at 20 degrees c and 745 torr, what will the volume of the dry gas be at STP?

**205**

Michael Jackson has had more plastic surgery than anybody else in California. You can bet he’s had more than anybody in Connecticut!

**chem**

sorry i didn't mean to post this twice!

**chem**

how do you calculate the number of millilliters of 1 M required for an amount of moles? and how would i find out what remains in the beaker when distilled water is evaporated from a beaker?

**chemistry**

how would you calculate the number of milliliters of 1 M HCl required for .212 mol of HCl?? and how could i find out what remains in the beaker when distilled water is evaporated in a beaker?

**Zoology**

as the size and volume of flying birds increase, surface area of wings cannot increase proportinal to general body surface area. is this a true statement? explain your answer using words and math. bird size seems severely constrained wheras aircraft size is not...why? do the ...

**chem**

how do you determine the theoretical yield?

**chem**

how would you find the ratio of moles of copper produced to moles of iron used is the moles of iron used is .067 and the moles of copper produced is .01?

**5TH GRADE MATH NEED HELP ASAP**

place fraction on the number line 5/3, 7/4, 4/6, 12/8, 2/3

**math**

I have no clue how to figure this out! Can you tell me how to figure it out? 2 positive numbers are in a ratio of 9 to 10. if the lesser number is decreased by 6 and the greater number is decreased by 25, the resulting ratio is 2 to 1. find the greatest of the original numbers.

**7th grade science**

what is the protective sheild covering what segment of the thorax? its in grasshopper dissection

**math**

i would say A...but i would be just guessing...

**science**

well at least u tried...lol...

**Health...different then the 1 i just posted...**

How do coping strategies effectively relate to a healthy lifestyle?

**Health**

How does mental and emotional health affect a person's lifestyle?

**Health**

yes it is.

**Health**

right

**Math**

73

**Health**

Why do behavioral choices affect an adolescence health?

**ALGEBRA EXTREMELY NEED HELP**

search for algebra slover on here...it should no the answer...

**ALGEBRA EXTREMELY NEED HELP**

ummm... i feel srry 4 u...tht looks REALLY hard...

**health**

idk...

**health**

How does using apporpriate strategies when dealing with difficult situations as an adolescence affect a healthy lifestysle?

**math**

Explain how to reflect a polygon over the X axis and the Y axis.

**english**

what is the purpose of a fairy tale motiff?

**english**

visions shadow by simon ortiz what are the concerns for the environment, love of nature, or the symbol of the eagle.

**Math**

If I have the problem; m+24=3. How do I figure that out?

**Math**

whats 26/100 in simplest form and whats 94/100 in simplest form and whats 92/100 in simplest form

**Biology**

it has something to do with the nerves being more active there, but i cant put it into a sentence. my most sensitive areas are my eyes, my teeth, and my tongue.

**science**

Why are bulls attracted to red?

**Chem help?**

9.24 *10^-5

**music**

What are the notes of a scale called?

**Math**

how would i solve this? 2x+2y=12 would i solve for x or y? Im stuck!!

**ecology**

what are the parts of a sunflower i need the pic with the big words

**science**

thats the one i found also but i need it for my science fair project

**science**

what are the parts of a sunflower ...i need the picture with the big words

**Math**

What are the positive integers between 1 and 100 that are only divisible by three numbers: one, the number itself and a prime number?

**graphing linear equations**

i need help graphing the equations 3y+4x=12, x-2y=3, AND 3x+2y=8 Quick... thanks!!!

**Math**

4*4*4=64

**sci 275**

so can anyone please help me with this questions?

**sci 275**

yes I think humans can harvest forest resources in an environmentally friendly way

**sci 275**

Do you believe that humans can harvest forest resources in an environmentally friendly way? or should national forests be left in their natural state in which resources are not used to benefit humans?

**chemistry**

nonpolar

**Psychology**

What are the potential benefits and drawbacks of a test that attempts to measure skills, abilities, or traits?

**Algebra 1**

is this a linear equation 4xy + 2y = 9

**social studies**

what is a graphic organizer

**Engineering**

How does an air conditioner use the first and second laws of thermodynamics?

**math**

how do i solve this using trig identities? 2 csc^2x = 3 cot^2x-1

**Algebra**

find the coordinates of the vertex for the parabola defined by the given quadratic function f(x)=(x+7)^2-6

**Math**

What is the difference between an equation with two variables and an equation with three variables?

**math**

Which label describes the following? 3x +6 =10 A). Expression B). Linear equation C). Equation which is not linear

**math**

Which label describes the following? 3x +6 =10

**History :]**

To what extent did the compromises made during the writing of the Constitution sow the seeds for sectional discord later on?

**biology**

The removal of which of the following would have the biggest impact on marine ecosystems? a. fishes b. whales c. shrimp D. plankton

**biology**

I need to know how calicum is made and is it a combined element? I can't find info anywhere.Please help! Thank you!

**Science**

Does the strength of the bond have anything to do with the time it takes to melt a substance? Explain.