Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 98

**Cooking catering**

When your creating garnishes which of the following is the most adaptable to creative and interesting shapes

**Finite Math**

The purchases made by customers at a convenience store are normally distributed, with a mean of $5.50 and a standard deviation of $3.50. What is the probability that a randomly chosen customer makes a purchase between $2.00 and $9.00?

**art**

What happens when negative and positive shapes begin to fuse together?

**Chemistry**

If 23.7g of C8H18 are combusted, what mass of water will be produced?

**Business Math**

2. The interest on $6,000 at 6 percent compounded semiannually for 8 years is: (Use table in the handbook) (Points : 1)

**Business Math**

7. By using the table in the handbook, the present value of $12,000 for six years compounded at 6 percent semiannually is:

**Chemistry**

A reaction has a standard free-energy change of -11.80 kJ/mol (-2.820 kcal/mol). Calculate the equilibrium constant for the reaction at 25 degrees C. Please help!

**2nd grade math homework**

does the broken key 5 means not to use the number5

**math**

show25 broken key is 5 show in 3 ways

**math**

please help with daughters homework show 25 broken key is 5 show in 3 ways

**English **

how does the The character in “My Mother” feel?

**sentence skills**

but

**Physics**

what is calculus

**math**

The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.

**chemistry**

Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 4 state to the n = 3 state.

**english**

what is a good thesis statement for jim crow laws?

**chemistry 106**

Methanol, ethanol, and n-propanol are three common alcohols. When 1.00 g of each of these alcohols is burned in air, heat is liberated. Calculate the heats of combustion of these alcohols in kJ/mol. (a) methanol (CH3OH), -22.6 kJ (b) ethanol (C2H5OH), -29.7 kJ (c) n-propanol (...

**chemistry 106**

A 0.1589 g sample of solid magnesium is burned in a bomb calorimeter that has a heat capacity of 1769 J/°C. The calorimeter contains exactly 251 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.

**chemistry 106**

Calculate the work done if a gas is compressed from 8.3 L to 3.3 L at constant temperature by a constant pressure of 3.0 atm, and give your answer in units of joules. (1 L · atm = 101.3 J)

**chemistry 106**

The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, the conversion of ZnS to ZnO by heating. 2 ZnS(s) + 3 O2(g) → 2 ZnO(s) + 2 SO2(g) ΔH = -879 kJ/mol Calculate the heat evolved (in kJ) per gram of ZnS roasted.

**chemistry 106**

Determine the amount of heat (in kJ) given off when 2.23 multiplied by 104 g of ammonia are produced according to the following equation. Assume that the reaction takes place under standard-state conditions at 25.0°C. N2(g) + 3 H2(g) 2 NH3(g) ΔH°rxn = -92.6 kJ

**chemistry 106**

Which of the following standard enthalpy of formation values are not zero at 25°C? (Select all that apply.) H2(g) N2(g) Au(s) Be(s) H20(g) Ne(g)

**math**

what is -.ooo552 in scientific notation

**chemistry 106**

Dry air near sea level has the following composition by volume: N2, 78.08 percent; O2, 20.94 percent; Ar, 0.93 percent; CO2, 0.05 percent. The atmospheric pressure is 1.00 atm. (Hint: Since volume is proportional to the number of moles present, mole fractions of gases can be e...

**chemistry 106**

Nitroglycerin, an explosive compound, decomposes according to the equation below. 4 C3H5(NO3)3(s) 12 CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g) Calculate the total volume of gases when collected at 1.2 atm and 25°C from 1.3 multiplied by 102 g of nitroglycerin. What are the part...

**chemistry 106**

calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 5.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation.

**chemistry 106**

A gas-filled balloon having a volume of 1.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 multiplied by 10-3 atm, respectively. Calculate the final volume of...

**chemistry 106**

The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-half of its original pressure, and its absolute temperature is decreased to one-seventh of the original. What is the final volume of the gas?

**Geometry**

a right triangle has legs of 24 units and 18 units. the lenght of the hypotenuse is?

**Introduction Enngineering **

i need bad help

**Science**

what are the 6 rules to draw atoms?

**ALGEBRA 1**

2/3+y=3/4 please show your work

**ALGEBRA 1**

2/3+y=3/4

**Algebra 1**

nika did you just copy the answer? thnx Ms. Sue

**Algebra 1**

solve this equation. show ur wrk work plz. 8y-(2y-3)=9

**Language Arts**

thnx!

**Language Arts**

what is free verse poetry? What are all of the examples of poetry?

**Social Studies**

its not opening up

**Social Studies**

What role did religious freedom play in the founding of Rhode Island and Pennslyvania?

**Language Arts**

what is an antonym for rationalize?

**Us History**

thnx!!

**Us History**

why were europeans interested in asia?

**World History**

which country had more than a dozen colonies in what is now the U.S along the atlantic coast by the mid-1700s? a.holland b.britain c.spain or d.france

**Intro to physical science**

I need a relating topic to physical science that is relating to the reasl world?

**math- pre algebra**

thnx

**math- pre algebra**

can you help me with this equation and may you please show your work? -3=3-y

**Technology**

Is a cellphone an electrical appliance

**maTH**

ok Ms.Sue may you help me?

**PRE*******ALGEBRA**

WRITE A FUNCTION RULE TO DESCRIBE EACH SITUATION. PLEASE HELP I DO NOT UNDERSTAND THIS AT ALL. The number of pounds p(z)as a function of the number of ounces z. The selling price s(c)after a 45% markup of an item as a function of the stores' cost c. The total number of mil...

**math**

The medians are 33 and 36 then you add 33 and 36 and divide the solution of the numbers by 2 and you should get 34.5 or 34 1/2.

**Pre Algebra Math**

How to write a rule for a linear function?

**Science**

Why do astronomers need to use special methods to detect star systems?

**math pre algebra**

thank you very much Bob!!

**math pre algebra**

what is the slope of y=5x-6 and y=7/2x +5 ?

**Pre Algebra**

what is the slope of y=5x - 6 and y= 7/2x + 5 ?

**Pre Algebra**

thnx i already figured that out but i really need help with this one 7x + 2y=10

**Pre Algebra**

5x-y=6 what is the equation in slope intercept form?

**algebra 2**

thats part of algebra 2 thats easy were doing that now in pre algebra

**Social Studies**

Why are foreign investors hesitant to invest in many countries in East Africa?

**science**

this isnt me i never asked this question

**science**

explain how trees affect the water cycles including deforesting

**Social Studies**

what are the main resources of Sudan in East Africa?

**Social Studies**

thanks!!

**Social Studies**

nothing i donteven know what unrest means.

**Social Studies**

How has unrest hurt Rwanda and some other East African countries?

**Social Studies**

I think irrigation might make a region's land and soil more fertile and suitable for farming.

**Social Studies**

How might irrigation help a region's economic development?

**Science**

If a planet had a surface with craters but no other features, what could I say about the inside of the planet?

**social studies**

Where is the eastern rift located? Where is the western rift located?

**Math Pre Algebra**

for the second one do i do 1348(0.0025)(1.5)= 5

**Math Pre Algebra**

oh ok thank you

**Math Pre Algebra**

so the answer or the first one is 135 and im not supposed to add 900 to 135?

**Math Pre Algebra**

Find the simple interest. $900 deposited at an interest rate of 3% for 5 years. $1,348 deposited at an interest rate of 2.5% for 18 months.

**Science**

I have two questions. How can an atmosphere affect the temperature of a planet's surface? If a planet had a surface with craters but no other features, what could you say about the inside of the planet?

**Geography**

THANKS ALOT!!!

**Geography**

How does climate types found in East Africa influence what grows there? Thank You in Advance to whoever helps me!!

**Math - Pre Algebra**

Thank you soo much!! But can you show me the steps on how to caculate 1280(1.13)^3.

**Math - Pre Algebra**

$1280 at 13% compound annually for 3 years Use the formula: B= p(1+r)n Please help me I need the answer for tommorow

**Math - Pre Algebra**

Simple and Compound Interest Find the simple interest. principal= $870 interest rate= 6% time= 9 months Please help me I need the answer for tommorow.

**earth science...help**

what are the 3 rock types and how can you tell them apart and also what are some realy cool facts about them thank you

**math**

thank you ms. sue have a great night

**math**

so if my question is find the dimensions of a box that will hold twice as many cubes as a box that is 2 by 6 by 4 a] volume of original box: 48 b]volume of new box is :96 c] dimensions of new box is 12 by 4 by 2

**Math**

12 * 4 * 2

**Math**

Find the dimensions of a box that will hold twice as many cubes as a box that is 2 by 6 by 4

**science**

building blocks?

**chemistry**

i got -1/3 for delta H. thank you very much, you have been a big help.

**chemistry**

ok this is what i have gotten: 3Fe2O3(s)+9CO(s)-->6Fe(s)+9CO2(g) 2Fe3O4(s)+CO2(g)-->3Fe2O3(s)+CO(g) 6FeO(s)+2CO2(g)-->2Fe3O4(s)+2CO(g) but the desired reaction is in a one to one ratio, and also the CO(g) is on the left side in the desired reaction. does that mean i h...

**chemistry**

Given: *Fe2O3(s)+3CO(s)-->2Fe(s)+3CO2(g)(delta h is -23kJ) *3Fe2O3(s)+CO(g)-->2Fe3O4(s)+CO2(g)(delta h is -39kJ) *Fe3O4(s)+CO(g)-->3FeO(s)+CO2 (delta h is 18kJ) Desired:FeO(s)+CO(g)-->Fe(s)+CO2(g) find delta h for the desired reaction. which reactions do i reverse ...

**chemistry**

Which of the following halides forms a solid when added to silver? (More than one answer may be selected) 1) Cl- 2) Br- 3) F- 4) I-

**Algebra1A**

(-3,4);-2x+1

**Accouning**

Help Needed ASAP!!!There's too much questions to be asked.

**Where are you Jasmine20, I answered your Homework**

Please check your homework answer At: Name:Tanisha Subject: To:Jasmine20 I posted the answer for GURU DEFINITION. HOPE IT HELPS!!! I think jasmine20 is not on jiskha.

**To:Jasmine20**

Guru is like a master. Did you had help with the questions and answers of HINDU RELIGION? I mean the one you posted that you need another religion, not your religion did you got help? I think jasmine20 is not on jiskha I HAVE TO TRY AND FIGURE OUT SOME MORE STUFF FOR MY FINAL ...

**Social Studies Homework (About USA And Canada)**

I need help with one question and I need one question answer checked! Social Studies Homework: 1)What are the two main languages of USA? Answer: English and Spanish 2)What are the two main languages of Canada? (Please give an direct answer for question 2 and don't write we...

**Please Help Me With My Math Homework**

I wrote my math homework questions. It's in Jiskha Homework Help Forum In: Name:Tanisha Subject:Math Thank You! I already replied, you don't need to make a new question asking someone to answer...... Thanks for the answer! It was a good help! the product of 7_ ,4_ , an...

**Math**

I need help with my math homework.I searched for homework help forums and I found the Jiskha Website on the Google Website so this is my first time.I am new. Math Homework: What is the value of number 3 in 2,539? What is the value of number 9 in 4,879 What is the of number 6 i...

**inclusive language**

Can you please verify if I have done this correctly 1. Each advisor was contacted by his students. my answer Each advisor was contacted by their students. or Each advisor was contacted by his or her students. His or her students, not their students (because you are saying EACH...

**inclusive language**

Can you please verify if I have done this correctly 1.The directors and their wives met the stockholders for a night on the town. my answer The directors and their spouses met the stockholders for a night on the town. You are correct.

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