Thursday

October 27, 2016
Total # Posts: 739

**college chemistry**

how many L @STP if oxygen are needed to produce 45.0 grams of nitric oxide according to the following balanced chemical equation? 4NH3 + 5O2=4NO + 6H2O

*October 13, 2016*

**Algebra**

Use the distributive property to simplify the expression 4x24. A.12 B.80 C.88 D.96 I think it's this one

*October 12, 2016*

**Business**

Okay, Thank You!

*October 10, 2016*

**Business**

They should have plenty of resources and money to hire employees. If they didn't have allot of things in stock, no employees, and not enough customers. Does this look right?

*October 10, 2016*

**Business**

What characteristics increase the likelihood of success for entrepreneurs and small business owners. What are characteristics that decrease the likelihood of success. I don't get this. Can someone explain?

*October 10, 2016*

**physics**

A horse is running across a field. The horse accelerates at 8.00 m/s2 over a distance of 9.70 m. It runs until its speed is 23.4 m/s and continues at this speed. What was the horse's initial speed?

*September 28, 2016*

**physics**

A baseball player standing on the ground throws a ball straight up. The ball leaves the player's hand with a speed of 6.22 m/s and is in the air for 2.70 s before hitting the ground. How high above the ground was the baseball player's hand when he released the ball?

*September 28, 2016*

**Spanish**

Can anyone write a short paragraph explaining how things are similar and/or different between the U.S. states that border Mexico?

*September 24, 2016*

**Math **

Check My answers 2. Name the Property of Equality that justifies this statement: if P = q then p + s = q + s. A. Reflexive Property B. Multiplication Property C. Symmetric Property D Addition Property **** 3. Use the given property to complete the statement. Multiplication ...

*September 24, 2016*

**Spanish**

Where are you going to put it?

*September 24, 2016*

**Spanish**

Can anyone write a short paragraph explaining how things are similar and/or different between the U.S. states that border Mexico?

*September 24, 2016*

**Math**

Is it possible for a trapezoid to havw 3 right angkes explain

*September 7, 2016*

**math please help asap**

a photo is 4 inches wide it is placed inside a frame with a border that is x inches wide the total width of the photo and the frame is 7 inches write an equation to model the situation then solve the equation to find the width of the border.

*September 6, 2016*

**Algebra**

My answer is- 3(2x^1/4+1/x^5/4)

*August 30, 2016*

**Algebra **

Factor and simplify the algebraic expression 3x^-5/4+6x^1/4

*August 30, 2016*

**algebra HELP MRS SUE**

wait no i meant B

*August 25, 2016*

**algebra HELP MRS SUE**

which property is illustrated by the statement 8 (-5/6) = (-5/6) 8 Associative property of addition commutative property of multiplication inverse property of multiplication commutative property of addition***

*August 25, 2016*

**PLEASE HELP MRS SUE history**

can you check one more who ensured the success of the charlestown colony? king charles I King charles II*** lord anthony ashley sir robert health

*August 24, 2016*

**PLEASE HELP MRS SUE history**

I think its A

*August 24, 2016*

**PLEASE HELP MRS SUE history**

how did the settlers of the middle class develop their economy? farmers grew grains and other crops that they sold to other colonies farmers grew subsistence crops that were enough to feed themselves trappers and hunters sold animal pelts to france and great britain ...

*August 24, 2016*

**Math**

Ok now this I'm seriously confused about - Rewrite the following expression without absolute value bars -9 / |-9|

*August 21, 2016*

**Math**

Oh wait I understand what my issue was √11 is less than 7 so you'd just switch the two numbers around!

*August 21, 2016*

**Math**

Rewrite the expression without the absolute value bars . | √11 - 7 | My answer was √11 - 7 but apparently it's wrong someone please help!

*August 21, 2016*

**algebra 1**

write the fraction as a difference. 3x - 7 _______ 12

*August 16, 2016*

**science**

To answer these questions you will need to refer to the volume of water dripping over time graph that you created in your science notebook from interactive art plotting a line graph activity. 1. According to the trend shown by the graph what volume of water would you expect ...

*August 11, 2016*

**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*

**French**

Autocorrect these days. Thanks anyway.

*June 8, 2016*

**French**

Sorry!!! I meant “sandwich”. Stupid autocorrect.

*June 8, 2016*

**French**

How do you say " I would like a (expletive)" in French?

*June 8, 2016*

**math**

100 x 158 = 15800

*June 7, 2016*

**History**

I can choose both area.

*June 7, 2016*

**Math**

Find slope of the tangent like when x=1 and y=12

*May 25, 2016*

**Math**

If i pick a number anywhere from 1 to 1000 at random, what is the probability that the number is divisible by either 2 or 5?

*May 23, 2016*

**L.A.**

You're a Good Man, Charlie Brown and "Happiness Is a Charming Charlie Brown at Orlando Rep" have very different purposes. In a paragraph, discuss how the purpose of each selection is revealed and why the purpose of each fits the genre, or kind of writing. Use ...

*May 17, 2016*

**Math**

1. What is true of a random sample A. It is only one way to sample a population B. Each member of the sample is a volenteer C. It is the easiest way to sample a population D.

*May 5, 2016*

**Fitness (Check answers)**

Yes!

*April 27, 2016*

**Fitness (Check answers)**

The answer is TRUE.

*April 27, 2016*

**Fitness (Check answers)**

The lack of balance can lead to disease. True or false My answer is FALSE.

*April 27, 2016*

**Chemistry**

I need help please. The question is vinegar, or a dilute of CH3COOH (acetic acid), should have a molarity of around 0.83 M. Using the Ka for acetic acid, what should the pH of vinegar be?? Thank you!!

*April 26, 2016*

**math**

I don't understand the part of "one of my factors is 7" can you explain that to me Ms.Sue?

*March 25, 2016*

**math**

I am a three digit number the sum of my digits is 10. my first digit and my last digit are the same what number am i? A 181 B 262 C 343 D 505

*March 25, 2016*

**History**

What strategies are used in propaganda? Which strategies do you think have the greatest impact on the viewer? Why?

*March 24, 2016*

**History**

What are the risks and benefits of propaganda campaigns?

*March 24, 2016*

**Calculus**

If the area under the curve of f(x) = x2 + 2 from x = 1 to x = 6 is estimated using five approximating rectangles and right endpoints, will the estimate be an underestimate or overestimate? Underestimate Overestimate The area will be exact The area cannot be estimated with ...

*March 15, 2016*

**Chemistry**

If it requires 23.4 milliliters of 0.65 molar barium hydroxide to neutralize 42.5 milliliters of nitric acid, solve for the molarity of the nitric acid solution. Show all of the work used to solve this problem. Unbalanced equation: Ba(OH)2 + HNO3 -> Ba(NO3)2 + H2O

*March 15, 2016*

**Social studies**

How might the Pacific island Trade Agreement (Picta) help the Pacific Islands trade with major markets all over the world Answer choices The region as a whole could partner to sell to bigger markets It will help the Island's sale to each other not other markets It will ...

*March 15, 2016*

**Calculus**

Suppose the integral from 2 to 8 of g of x, dx equals 5, and the integral from 6 to 8 of g of x, dx equals negative 3, find the value of the integral from 2 to 6 of 2 times g of x, dx . 8 MY ANSWER 12 16 4

*March 15, 2016*

**math**

The ratio of cats to dogs at jazzy Jen's pet store is 3 to 5 .If there are 24 animals at the pet store,how many of them are cats?

*March 14, 2016*

**Chemistry 101 **

In addition to uranium, which elements were known to emit radioactive "rays" before M. Curie discovered radium?

*March 4, 2016*

**Chemistry 101 **

If the curries were able to extract 8.5ug of radium from 8.5 tons of pitchblende, what was their rate of recovery? (in percent please)

*March 4, 2016*

**Chemistry 101 **

How many evaporation's did the curies have to make before they finally isolated radium?

*March 4, 2016*

**Chemistry 101 **

This is the question 10.0 grams of nitrogen is reacted with 10.0 grams of the element phosphorus under certain conditions to yield trinitrogen diphosphide. Answer these questions. 1). Write a balanced equation. 2). which reactant is limiting? In excess? 3). Theoretically, how ...

*March 4, 2016*

**Chemistry 101**

If a solution containing 20.0 grams of nickle (11) chloride is mixed with an aqueous solution of containing 15.0 grams of silver nitrate,, determine the mount of silver chloride that theoretically will precipitate. How much nickle (11) nitrate is formed? Which reactant is ...

*March 4, 2016*

**Chemistry 101 **

10.0 grams of nitrogen is reacted with 10.0 grams of the element phosphorus under certain conditions to yield trinitrogen diphosphide. Answer these questions. 1). Write a balanced equation. 2). which reactant is limiting? In excess? 3). Theoretically, how many grams of ...

*March 4, 2016*

**Chemistry 101 **

If a solution containing 20.0 grams of nickle (11) chloride is mixed with an aqueous solution of containing 15.0 grams of silver nitrate,, determine the mount of silver chloride that theoretically will precipitate. How much nickle (11) nitrate is formed? Which reactant is ...

*March 4, 2016*

**Social studies**

To reduce confusion: 1. A, C, and D 2. B and C 3. B, C, and D 4. B and C 5. A, B, and D These would be the correct answers! Hope that helps! Number one is your question :)

*March 2, 2016*

**Chemistry 101 **

If gold sells today for 1625 per ounce, and a large mining truck hauls 400 tons of gold ore, what is the value of the gold in each truck if each ton of gold ore contains 1.0 ounces of gold? Use dimensional analysis.

*February 25, 2016*

**Chemistry 101 **

If gold sells today for 1625 per ounce, and a large mining truck hauls 400 tons of gold ore, what is the value of the gold in each truck if each ton of gold ore contains 1.0 ounces of gold? Use dimensional analysis.

*February 25, 2016*

**please help**

omg im working on the same thing my essay is due tomorrow and i cant find the answers to anything if you find anything let me know and if i find anything i will let you know imm so stressed

*February 24, 2016*

**please help **

What are some of the climate types in Africa? What kind of resources does each region produce? What are some types of crops that are grown in Africa? What is the vegetation like in Africa?

*February 24, 2016*

**Chemistry 101 **

If a piece of granite weighing 250.0 grams is heated in boiling water to a temperature of 100 C and then placed in a calorimeter containing 400.00 grams of water, the temperature of the water increases from 20.0 C to 28.5 C. what is the specific heat of Granite?

*February 10, 2016*

**Chemistry 101 **

The mileage for a motorcycle with a fuel tank capacity of 22 liters is 35 miles per gallon. The density of gasoline is 0.74 g/cm^3.(dimensional analysis problem) a). How long a trip, in KM can be made on a full tank of gasoline? b). if the price of gasoline is $1.99 per gallon...

*February 9, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 11.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...

*February 9, 2016*

**Chemistry 101**

isn't the density given in g/cm^2 though? and the mass is mL. It seems like there are 2 different units here. They also want the answer in grams. so m= d x v 7.50mL x 7.85 g/cm^2= 58.9 (what unit mL or g.cm^2?)

*February 9, 2016*

**Chemistry 101 **

A student using a 100mL graduated cylinder that contained 50.00mL of water. Th volume of the water increased to 57.50mL. The density of the object was 7.85 g/cm^2. How many grams did the metal object weigh?

*February 9, 2016*

**Chemistry 101**

This would be the correct answer I was looking for. Mass 2.00 Grams Volume sphere = (4/3)*pi*r^3 Find radius first 1.00/2= 0.500in/2.54cm/1in ( the inches cancels out your left with 1.27 cm as the radius. Volume of a sphere (4/3)(3.14)(1.27)^3=8.58 Density = 2.00g/8.58cm^3= 0....

*February 9, 2016*

**Chemistry 101 **

A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water? Remember that if the ball's density if greater than 1.00 g/mL the density of water, the ball will sink. Also remember to use dimensional analysis.

*February 9, 2016*

**Government (Reed)**

I don't understand social contract?

*February 2, 2016*

**Government ` Reed**

You talk in person with other people??? Reed?

*February 2, 2016*

**Government**

John Locke: In his book Two Treatises on Government, Locke refuted the divine right of Monarchy, and established a theory which states that all men are men are born free and equal. Each person should have equal access to the natural rights of life, liberty, and property. No ...

*February 2, 2016*

**social studies (again)**

They absolutely have meaning.

*February 2, 2016*

**poetry**

from details about blossoms in both the first and third haiku what conclusion can you draw? the poet feels exceedingly lonely the poet lives in an urban setting the poet enjoys the gentle beauty of nature the poet enjoys the drama of nature at its most intense Please help i ...

*January 29, 2016*

**Chemistry 101 **

A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water? Remember that if the ball's density if greater than 1.00 g/mL the density of water, the ball will sink. Also remember to use dimensional analysis.

*January 28, 2016*

**Chemistry 101 **

A piece of metal weighing 10.65 grams releases 3450 joules of heat energy when it is cooled from 99.9c to 28.5c. Wheat is the specific heat capacity of the metal in J/g c..

*January 28, 2016*

**Chemistry 101 **

A rectangular prism has these dimensions and mass: length = 12.6 cm,, width = 1.256 feet, and thickness = 456 mm. Its mass is 1.2347 pounds. Determine its density in g/cm^3.

*January 28, 2016*

**Calculus**

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.

*January 28, 2016*

**Calculus**

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.

*January 28, 2016*

**Chemistry 101 **

A chemist needs 2.00 grams of a liquid compound with a density of 0.785 g/cm^3 density. what volume of compund is required?

*January 27, 2016*

**Chemistry 101 **

if an organic liquid has a density of 1.11 g/mL and has a measured volume of 500. mL, what mass of liquid is present?

*January 27, 2016*

**Chemistry 101 **

A chemist needs 2.00 grams of a liquid compound with a density of 0.785 g/cm^3 density. what volume of compund is required? Mass= Volume X Density 2.00g x 0.785 g/Cm^3 = 1.57g/cm^3 Not sure is this is correct......

*January 27, 2016*

**Chemistry 101 **

A sample containing 0.0750 pounds of metal pellets is poured into a graduated cylinder initially containing 22.4 mL of water. The water level rises to 31.3 mL. calculated the density of the metal.

*January 25, 2016*

**Chemistry 101 **

Convert 115 miles to feet, inches, centimeters, millimeter, and kilometers. Show set-ups.

*January 25, 2016*

**Chemistry 101 **

A rectangular prism measuring 12.5 in by 1.134 ft by 11.7 cm has a density of 7.89 g/cm^3. How much does the object weight in grams, kilograms, and pounds?

*January 25, 2016*

**Chemistry 101**

so: v= 4/3*3.14*0.5^3= 0.52 then take 2.00g/ 0.52 = 3.85g (ball will sink)

*January 25, 2016*

**Chemistry 101 **

A spherical ball has a diameter of 1.00 inch and a mass of 2.00grams. Will the ball float or sink in water? Remember that if the balls's density is greater than 1.00 g?mL (the density of water), the ball will sink.

*January 25, 2016*

**Chemistry 101**

Thanks!

*January 25, 2016*

**Chemistry 101**

So would it be 7.85 g/cm^3 x 7.50mL do you have to convert the mL and the g/ Cm^3? What unit would the mass be? grams or mL...

*January 25, 2016*

**Chemistry 101 **

A student using a 100mL graduated cylinder that contained 50.00mL of water. Th volume of the water increased to 57.50mL. The density of the object was 7.85 g/cm^2. How many grams did the metal object weigh?

*January 25, 2016*

**Chemistry 101 **

The distance from the Earth to the sun is approximately 9.37 x 10^7 miles. How long does it take for light from the sun, to reach the earth? Speed of light is 3.00 x 10^8 m/s. Use dimensional analysis to solve.

*January 21, 2016*

**Chemistry 101 **

A crown is determine to weigh 2.65 kg. When this crown is submerged in a full basin of water, the overflow is found to be 145 mL. Is the crown pure gold or a gold-silver alloy? The density of silver is 10.5 g/mL and gold that of gold is 19.3 g/mL. Show work.

*January 20, 2016*

**Chemistry 101 **

Solumedrol 1.5 mg per KG of body weight is ordered for a child weighing 2.0 pounds. Solumedrol is available as 75 mg / mL solution. How many mL should the nurse administer? Use dimensional analysis..

*January 19, 2016*

**Chemistry 101 **

Calculate the mass of a cylindrical cork of diameter 1.00 inches and length 2.50 inches. Pay attention to significant figures, Cork density 0.26 g/ mL

*January 19, 2016*

**Chemistry 101 **

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.

*January 19, 2016*

**Chemistry 101 **

The distance from the Earth to the sun is approximately 9.37 x 10^7 miles. How long does ti take for light from the sun to reach the earth? Speed of light is 3.00 x 10^8 m/s. Show work.

*January 19, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 11.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...

*January 18, 2016*

**Chemistry 101 **

Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 112.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...

*January 18, 2016*

**Chemistry 101**

Where did you get the 2 to divide by? and what about the 30.48? Not sure of how to set this problem up. 6.5/2= 3.25 and I do not see that in the problem?

*January 18, 2016*

**Chemistry 101 **

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.

*January 18, 2016*

**Chemistry 101**

your wrong.

*January 18, 2016*