# Posts by sheena

Total # Posts: 58

**chemistry**

Write balance half ionic equation when aluminum oxide is decomposed to aluminum and oxygen.

*October 11, 2016*

**Chemistry**

when are you going to use the water displacement method in taking the volume of the object?

*July 22, 2015*

**english**

what are the characteristics of formal writing? it's complex am i right?

*June 27, 2015*

**Physics**

v=√γRT/M v α√l/M vH2/vO2=√Mo2/√MH2 =√32/√4 =4 V = 4:1

*June 19, 2015*

**geometry**

Volume of alabaster= 576 in3 Length for base = 3 inches Height= 4 inches Volume of pyramid = lwh/3 = 3x3x4/3 = 12 in3 Number of pyramids that can be made from 576 in3 of alabaster = 576/12 = 48

*June 19, 2015*

**math**

Let Common difference = d =4 First term= a -3 Last term = l = 59 And number of terms = n l=a+(n-1)d 59= 3 + (n-1)4 59=3+4n-4 59=4n-1 60=4n 60/4 =n 15=n #There are 15 terms in the sequence

*June 19, 2015*

**CHEMISTRY HELP**

Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee

*October 12, 2014*

**CHEMISTRY**

oh i got it thank you!

*October 12, 2014*

**CHEMISTRY**

please explain more about how to find the molality??

*October 12, 2014*

**CHEMISTRY**

THANK YOU SO MUCH!

*October 12, 2014*

**CHEMISTRY**

i've read formulas to use ro solve this problem but i don't know what delta T means. please tell me what formula to use and what delta T means thaaaank youu

*October 12, 2014*

**CHEMISTRY**

Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee

*October 12, 2014*

**algebra**

From a survey of 100 college students, a marketing research company found that 65 students owned ipods, 45 owned cars, and 15 owned both cars and Ipods. (a) How many students owned either a car or an ipod (but not both)? (b)How many students do not own either a car or an ipod?

*August 3, 2014*

**Math**

Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. (Enter your answers as a comma-separated list. Enter EMPTY for the empty set.) {1, 2, 8} ∩ {2, 8, 9}

*July 13, 2014*

**Math**

In a survey of a TriDelt chapter with 50 members, 23 were taking mathematics, 32 were taking English, and 9 were taking both. How many were not taking either of these subjects?

*July 13, 2014*

**Math**

An item has a 45% markup based on selling price. What is the equivalent markup percent based on the cost?

*December 11, 2013*

**Trigonometry**

A jet plane flying 6000 m above the ground passed directly above Ana. one minute later, Ana noticed that the plane's angle of elevation was 18 degrees 34 minutes. What was the horizontal distance covered by the plane?

*November 2, 2013*

**Algebra**

25,8

*October 22, 2012*

**MATH**

Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824.00 and twice as many adult tickets as student tickets were sold, then how many of each were sold?

*June 13, 2012*

**math**

when we mix a 10% acid solution with a 14% acid solution, we can obtain a solution that is 24% acid

*June 13, 2012*

**algebra**

the sum of two numbers is -16 and their difference is 8, find the numbers

*June 13, 2012*

**College Algebra**

Find the sum of two numbers is 2, and their difference is 26. Find the numbers

*June 13, 2012*

**Algebra**

Ticket for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickets as student tickets

*June 13, 2012*

**Algebra**

oops, sorry my error total receipts $824

*June 13, 2012*

**College Algebra**

solve each system by substitution method x=y+3 3x-2y=4 Pls determine whether the equations are independent, dependent, or inconsistent

*June 13, 2012*

**Chemistry**

I calculated the M of NaBO.... at 6.59x10^-3 for the mass I measured. I have a chart of measurements where I used 9.98mL out of 100mL of solution that I made. I was given the equation (mass Na.../molar mass Na...)*(volume Na.../volume total solution) the balanced equation I&#...

*March 17, 2012*

**Chemistry**

I am working on a redox stoichiometry lab. I need to calculate the moles NaBO3*4H2O. Mass=1.0133g in 100mL solution In my experiment I used 9.98mL and titrated in with KMnO4. I'm really confused about how to calculate the moles. Thanks for any help!!!!

*March 17, 2012*

**grade 9 math**

2^2

*October 13, 2011*

**trig**

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.

*May 4, 2011*

**computer**

what is the cost: performance: reliability: size: installed in numbers: of super computers, main frame, personal computers and PDA'S ?

*November 3, 2010*

**Astrophysics**

Oh, yes, yes. This is explained in my book; I just didn't remember this formula or think to apply it to this problem. Thank you so much!

*July 19, 2010*

**Astrophysics**

If an eclipsing binary system has a period of 32 days, an orbital velocity of 153km/s, and an orbit that is nearly edge-on, what is the circumference of the orbit? The radius of the orbit? The mass of the system? I can't seem to find a starting point for this problem.

*July 19, 2010*

**Chemistry**

the specific heat capacity of gold is .13 J/g°C. Calculate the specific heat capacity of gold in cal/g°C. Calculate the specific heat capacity of gold in J/mol°C. Calculate the amount of energy required in joules to heat 2.5 kg of water from 18.5°C to 55.0°...

*May 31, 2010*

**Chemistry Help!**

the specific heat capacity of gold is .13 J/g°C. Calculate the specific heat capacity of gold in cal/g°C. Calculate the specific heat capacity of gold in J/mol°C. Calculate the amount of energy required in joules to heat 2.5 kg of water from 18.5°C to 55.0°...

*May 31, 2010*

**human service management**

What are three ways human resources help support the strategic goals of human service organizations

*March 5, 2010*

**11th grade**

How many moles of nitrogen do you need to make 78 g of ammonia?

*February 12, 2010*

**operating system**

I need a breakdown of Windows, Users & Unix users.. Breakdown by year of computer virus growth... Breakdown of viruses by operating system... can you help me please???

*January 29, 2010*

**PHYSICS- SCIENCE**

1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun have been? (iii) ...

*January 23, 2010*

**PHYSICS- SCIENCE**

. Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean distance from the ...

*January 23, 2010*

**Science**

1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun have been? (iii) ...

*January 23, 2010*

**math (word problem)**

72.85

*November 6, 2009*

**business law**

Where in the uniform commercial code does it discuss special rules for merchants because I can't find it in article 2?

*November 5, 2009*

**Tutoring Question**

I was also wondering like Anonymous if Tutorvista helps you for free when you click on the instant help. Like I know that you have to pay for having a private tutor, but say you have this one question which u really need help on, could you post it in the instant help box and ...

*October 22, 2009*

**Education**

Hi, I am looking for some good educational vidoes that I can find on Youtube. I found these really good ones of Crawford the cat. It is cartoon and it teaches you good manners such as washing your hands frequently, cleaning after your mess, etc. If you know of more, that are ...

*October 17, 2009*

**G&C ms.sue**

Wow, you and I have the same interest. I really want to go to Dubai as well. There are so many malls there and the best one is the mall of emirates, which is located on sheihk zayed road. It is the biggest one in middle east. That's good but I would add a bit more to get ...

*October 16, 2009*

**Education**

Ms. Sue I am looking for educational sony ps2 games and that are ages 5 and up, I had googled this up as well, but the only educational games which showed up were the ones from ages 2 to 5.

*October 12, 2009*

**Education**

Ms. Sue I really liked the ps2 game Alphabet circus, but it's for ages 2 to 5, and I would like one ages 5 and up, so could you please give me another link to games like alphabet circus. I would really appreciate your help, thanks.

*October 12, 2009*

**Education**

Thank you so much Ms. Sue.

*October 12, 2009*

**Education**

I want to know about educational ps2 games. I tried looking everywhere but was unable to find any. I would like to know about ps2 games which help you learn and spell. List as many as you can, and where I can get them from.

*October 12, 2009*

**chemistry**

Calculate q in J when 2.02 g of ice is cooled from -22.6°C to -73.8°C (cice = 2.087 J/g·K). Do not add units to your answer.

*October 12, 2009*

**chemistry**

Molecular size in real gases causes positive deviations from the PV/RT ratio of an ideal gas. a. True b. False

*October 12, 2009*

**chem**

Molecular size in real gases causes positive deviations from the PV/RT ratio of an ideal gas. a. True b. False

*October 12, 2009*

**chem**

An unknown gas Q requires 1.80 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the molar mass (g/mol) of Q?

*October 12, 2009*

**Spanish Stop-motion quote**

I suggest you wait for more suggestions because I am not sure if I'm correct, and neither am I so sure if sam's correct.

*October 11, 2009*

**Spanish Stop-motion quote**

sometimes free translators on the net miss out very important words. It's always best to have a good spanish/english dictionary.

*October 11, 2009*

**Spanish Stop-motion quote**

This is what i have got "Me gusta volar cosas!" "Con mucho gusto comandante.

*October 11, 2009*

**Chemistry**

Two iron bolts, one at 100. °C with a mass of 52.8g, the other at 56.0°C with a mass of 66.8g, are placed in an insulated container. Assuming the heat capacity of the container is negligible, what is the final Celsius temperature inside the container (c of iron = 0.450...

*October 11, 2009*

**psy**

Rational and Guilty: The person committing the crime was not suffering from a mental illness at the time the crime was committed and knew the difference between right and wrong and are did committ the crime that they are being accused of. Guilty but insane: The person is ...

*June 9, 2009*

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