Wednesday

October 1, 2014

October 1, 2014

Total # Posts: 772

**chemistry**

The equation for the reaction between hydrogen gas and oxygen gas is: 2H2(g) + O2(g) ---> 2H2O(l) i) How much hydrogen will react with 8g of oxygen? ii) how much water will be formed when 6g of hydrogen react? i would appreciate your help.
*October 17, 2010*

**chemistry**

The equation for the reaction between hydrogen gas and oxygen gas is: 2H2(g) + O2(g) ---> 2H2O(l) i) How much hydrogen will react with 8g of oxygen? ii) how much water will be formed when 6g of hydrogen react? i would appreciate your help.
*October 17, 2010*

**Chemistry**

In a simple titration experiment how and why are the results reproducible?
*October 15, 2010*

**2nd grade reasoning**

Explained: Look at the question: My tens digit is double my ones digit. I am less than 70 and greater than 60. what number am I? So 10’s digit is double my 1’s digit. 10's digit can only be in the range of 60 and 70, [61-69] So The 10's digit has to be 6 Read...
*October 14, 2010*

**psychology**

What will you take from this material on leadership and management and apply in your own life?
*October 13, 2010*

**psychology**

Should your boss ask you how to be a better leader and manager, what might you take from this material and suggest to him/her?
*October 13, 2010*

**psychology **

What in the material on "Groups" did you find useful? How will you apply it in your life?
*October 13, 2010*

**Science (Bonding)**

Can someone show me how to draw a dot and cross diagram for kf, showing only the outer electron shells. I remember doing it and school and learning that it was a ionic bond if i remember correctly. Thankyou.
*October 13, 2010*

**Working in the science industry**

thankyou Dr Bob222 and writeacher. All the best.
*October 13, 2010*

**Working in the science industry**

Can any one list the tasks and the precautions and give details of the job of a technician in the science industry. Many thanks. ps thankyou dr bob 222 but there was nothing there in your previous answer, can you help
*October 13, 2010*

**Science**

Dr Bob222 i can not see anything
*October 12, 2010*

**Science**

Can any one list the tasks and the precautions and give details of the job of a technician in the science industry. Many thanks.
*October 12, 2010*

**Chemistry**

How can i explain the key features of the periodic table relate to the conclusions after a titration experiment The experiment was the preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate Objective...
*October 11, 2010*

**Chemistry**

How can i explain the key features of the periodic table relate to the conclusions after a titration experiment
*October 11, 2010*

**algebra**

the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?
*October 9, 2010*

**Chemistry**

Preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate How can i explain the key features of the periodic table relate to the conclusions of the above experiment, i need to understand the groups, ...
*October 9, 2010*

**Chemistry**

They are formed by the _____________ of a ______________ of electrons First one is sharing and the second one is pair
*October 8, 2010*

**Chemistry**

Hello i have a few questions i need help with please, can you help me and thank you in advance..... What are covalent compounds usually formed between? I also have to fill in this sentence can you help.... They are formed by the _____________ of a ______________ of electrons ...
*October 8, 2010*

**Chemistry Help**

Calculate how many moles of NH_3 form when each quantity of reactant completely reacts 3N_2H_4(l)-->NH_3(g)+N_2(g) -2.5mol N_2H_4 -4.05mol N_2H_4 -65.8g N_2H_4 -4.52kg N_2H_4
*October 5, 2010*

**College Physics**

when the radius remains same, the speed should be increased.
*September 30, 2010*

**religion**

need help to unscramble words from the renaissance 1mgernay 2cahtcilo 3oppe 4gatrorypu 5formaretion
*September 29, 2010*

**English**

to show the other person how important he/she is to you.
*September 29, 2010*

**English**

what are gifts for?
*September 29, 2010*

**English**

what are presents for?
*September 29, 2010*

**English**

can anyone answer these questions? How do people choose what to buy? what are presents for and what do they express?
*September 28, 2010*

**world history**

Why does Marks begin with China? What was happening there in the 1400s that matters to the course of world history?
*September 20, 2010*

**world history**

Compare and contrast China and India ca. 1400. What are some important political differences? Why do you think those differences might matter in the way world history develops in the period from 1500 to 1800?
*September 20, 2010*

**algebra 1**

Lew flew to Venezuela and saw angel falls where the water drops 3,212 feet. how much higher this waterfall than the empire state building,which is 1,250 feet high?
*September 19, 2010*

**algebra 1**

16
*September 19, 2010*

**Statistics**

Hi, I have to answer if each questions is a nominal, ordinal, interval discrete, interval continuous, ratio discrete, or ratio continuous. I would like to know if my answers are correct and if wrong what is the correct answer. Thanks 1. Highest level of education completed? a...
*September 19, 2010*

**US History**

Compare and contrast China and India ca. 1400. What are some important political differences? Why do you think those differences might matter in the way world history develops in the period from 1500 to 1800?
*September 17, 2010*

**science**

What solids have particles arranged in repeating geometric patterns?
*September 7, 2010*

**statistics**

Where'd the 12 come from? PLEASE HELP!
*September 7, 2010*

**Brown**

Find The Pattern: George, Thomas, Abe, Alexander...
*August 27, 2010*

**physic**

The resistivity of gold is at a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 480 ma. The power dissipated in the wire is closest to:
*August 4, 2010*

**physic**

a 40.0 ohm resistor and a 90.0 ohm resistor are connected in parallel, and the combination is connected across a 120 V dc line. A)what is the resistance of the parallel combination. B)what is the total current through the parallel combination. C)what is the current through ...
*August 2, 2010*

**trigo**

bobo nung unang sumagot ,
*July 31, 2010*

**structural analysis**

a wood post 20 ft long shortens 1/4 in. under load determine the average unite strain
*July 31, 2010*

**chemistry**

In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10mL 1.0 M HCL + 10 mL 0.0050 M I2 + 20 mL H2O A student found that it took 250 seconds for the color of the I2 to disappear. What was the ...
*July 26, 2010*

**CIS 105**

My assignment: • Describe one technological device in 350 to 700 words. Include the following: When did it come (or will it potentially come) into existence? What scientific or technological reasoning explains how this potential has been (or can be) be reached? My problem...
*July 25, 2010*

**CIS 105**

I need help with the following assignment: o Distinguish between computer data represented by the state of a computer’s electrical switches and the meaningful information that is displayed to the user. I have read the course material 3 times already and I cannot ...
*July 25, 2010*

**physic**

An aluminum rod is 10.0 cm long and a steel rod is 80.0 cm long when both rods are at a temperature of15 degrees cel. Both rods have the same diameter. The rods are joined end-to-end to form a rod 90.0 cm long. The coefficients of linear expansion of aluminum and steel are2....
*July 24, 2010*

**Calculus**

If anyone can please help me solve this math problem! PLEASE!! Here is the link: img63.imageshack.us/img63/9355/img0002gp.jpg
*July 22, 2010*

**Physic**

Geophysicist have estimated that the temperature at the center of the earth’s core is 5000⁰C (or more), while the temperature of the sun’s core is about 15 million K. Express both of these temperature in Fahrenheit degrees.
*July 22, 2010*

**pysic**

A 328 kg car moving at 19.1 m/s hits from behind another car moving at 13.0m/s in the same direction. If the second car has a mass of 790kg and a new speed of 15.1m/s what is the velocity of the first car after the collision?
*July 21, 2010*

**physi**

a slab of ice floats on a freshwater lake what is the minimum volume must the slab have for a 45kg women to be able to stand on it without getting her feet wet?
*July 20, 2010*

**physic**

by how many newtons do you increase the weight of your car when you fill up your 11.5 gal gas tank with gasoline a gallon is equal to 3.788 L and the density of gasoline is 737kg/m3
*July 20, 2010*

**Chem**

Variation of the rate constant with temperature for the first-order reaction 2N2O5(g) 2N2O5(g) + O2(g) Is given in the following table. Determine graphically the activation energy for the reaction. T(K) k(s^-1) 2981.74 x 10^-5 308 6.61 x 10^-5 318 2.51 x 10^-4 328 7....
*July 17, 2010*

**algebra**

Time to swing. The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2=n ^2 L. If a child is on a swing with a 10 foot chain, then how long does it take to complete one cycle of the ...
*July 15, 2010*

**ENG 101**

My apologies, I see now that I forgot to include my answer choices. 1A, 2B, 3A, 4A, 5A, 6B, 7B, 8A, 9A, 10A, 11B, 12B, 13B. 14B, 15A, 16B, 17A.
*July 10, 2010*

**ENG 101**

I am wandering if my answers and rationale are correct. The capital X denotes my chosen answer and my rationale follows the statement choices. Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, ...
*July 10, 2010*

**English**

I agree with Writeacher. According to APA guidelines, none of the above are correct.
*July 9, 2010*

**Math **

Hello Damon im not understanding... are you saying the answer is c?
*June 30, 2010*

**Math **

Find a polynomial of degree 3 with roots 3, 4 - i. Which one is it? A.x3 - 10x + 15 B.x3 + 15x2 + 4x - 50 C.x3 - 11x2 + 41x - 51 D.x3 + 24x2 + 3x - 12
*June 30, 2010*

**math**

1500 dollars into a 6 month CD compounding daily with a 4% APR. How much do u have at the end of your six months?
*June 17, 2010*

** math**

A deck of 38 cards contains 16 blue cards, 6 red cards, and 16 yellow cards. What is the probability of randomly drawing a blue card from this deck?
*June 16, 2010*

**History**

what is Soweto Dance Theater
*June 16, 2010*

**History**

The impact of increased discrimination and segregation practices between 1876 and 1900 in the District. Be sure to describe how this discrimination and segregation diminished social, economic, and political gains which were enjoyed by black Washingtonians immediately after the...
*June 9, 2010*

**Social studies**

What is the relation between lack of freedom and poverty? Thanks, Paul
*May 31, 2010*

**managerial economics**

1. Some games of strategy are cooperative. One example is deciding which side of the road to drive on. It doesn’t matter which side it is as long as everyone chooses the same side. Otherwise, everyone may get hurt. Driver 2 Left Right Driver 1 Left 0,0 -1000 -1000 Right -...
*May 17, 2010*

**algebra**

Quan is shopping. He can buy 2 pairs of pants and 1 shirts for $79.85 ( before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85 (before tax is added). To figure out how much a shirt or a pair of pants costs,you must first identify the conditions. What is one ...
*May 6, 2010*

**algebra**

Thank you Poppy and Reiny!!!!!!!!!!!! :)
*May 5, 2010*

**algebra**

Quan is shopping. He can buy 2 pairs of pants and 1 shirts for $79.85 ( before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85 (before tax is added). To figure out how much a shirt or a pair of pants costs,you must first identify the conditions. What is one ...
*May 5, 2010*

**algebra**

Quan is shopping.He can buy 2 pairs of pants and 1 shirt for $79.85 (before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85.(before tax is added). To figure out how much a shirt of a pair of pants cost, you must be able to write the equations. What equations ...
*May 5, 2010*

**algebra**

Quan is shopping.He can buy 2 pairs of pants and 1 shirt for $79.85 (before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85.(before tax is added). To figure out how much a shirt of a pair of pants cost, you must be able to write the equations. What equations ...
*May 5, 2010*

**algebra**

Quan is shopping.He can buy 2 pairs of pants and 1 shirt for $79.85 (before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85.(before tax is added). To figure out how much a shirt of a pair of pants cost, you must be able to write the equations. What equations ...
*May 5, 2010*

**algebra**

which inequality is the same as -4x + 2y <= 8? a)y >= -2x + 4 b)y <= -2x + 4 c)y <= 2x + 4 d)y >= 2x + 4 i will like to know if my answer is correct or not. c
*May 5, 2010*

**algebra**

which inequality is the same as -4x + 2y <= 8? a)y >= -2x + 4 b)y <= -2x + 4 c)y <= 2x + 4 d)y >= 2x + 4
*May 5, 2010*

**calculus**

How do you differentiate the maclaurin series for 1/(1-x) twice to find the maclaurin series of 1/(1-x)^3.
*April 26, 2010*

**Chemistry**

Ah! I have the same question. Could you explain it?
*April 25, 2010*

**Finance**

816.00 divided by 12 I think
*April 20, 2010*

**Finance**

Ms Sue, I am not a student, just trying to find out this answer for personal reasons. Thanks for your help. I thing I multiply 3.4 time 24000 divided by 12 which is about 600 per month....right
*April 20, 2010*

**Finance**

sorry, i dont understand Ms Sue
*April 20, 2010*

**Finance**

Does that mean divided by 12?
*April 20, 2010*

**8th grade**

what was the ultimate result of Zheng Hes voyages of discovery in the 1400?
*April 11, 2010*

**Advanced Accounting**

A. (1) 12% x ($1,000,000-400,000) = $72,000 normal earnings. Expected future earnings = $150,000. Excess earnings = $150,000 - 72,000 = $78,000. Excess earnings x 5 years = $390,000 goodwill. (2) $78,000 x 3.60478 (discount rate of 12% at 5 years) = $281,173 goodwill. (3) $78,...
*April 11, 2010*

**ECONOMICS**

As the economy expands, it requires les and less investment.
*April 8, 2010*

**Physics**

Compare and contrast concepts of unsaturated, saturated and super saturated solutions. How would you make each type. What would they be useful for?
*March 31, 2010*

**algebra**

Thank You Kathleen your a life saver
*March 24, 2010*

**algebra**

What is 7/12 as a percent and decimal???
*March 24, 2010*

**algebra**

What is 7/12 as a percent and decimal?
*March 24, 2010*

**Algebra**

What is 7/12 as a decimal and a percent???
*March 24, 2010*

**Poetry**

What would be a good thesis statement for "Mid-Term Break" by Seamus Heaney I've read it about 100 times and I've analyzed it a bunch of times and need help with at least two of the three prong thesis statement.
*March 23, 2010*

**spanish**

¿Dónde te graduaste de la secundaria (high school)?
*March 21, 2010*

**History**

Why was Andrew Jackson considered a "common man" political wise, not how he lived. I mean what three or two events and decisions did Jackson do during his presidency that made him the citizen president?
*March 19, 2010*

**decimals**

write decimal for 47.5%
*March 17, 2010*

**Chemistry**

Kb for aniline is 4.3 x 10^-10. What does this tell you about aniline? Please help!
*March 14, 2010*

**PHYSICS**

4.9 3.5*square root of 2
*March 5, 2010*

**Math riddle**

Thanks, Ms. Sue Mathmate thanks thats what I thought just wanted to make sure maybe it was a misprint on the riddle.
*March 2, 2010*

**Math riddle**

I am a two digit number greater than 40.You can divide me by 7 and also by 8, but not any other set of single digit number.what number am I
*March 2, 2010*

**Calculus**

If f(x)=e^(x+5lnx) find f'(4), correct to two decimal places.
*February 27, 2010*

**calculus**

But then would this confirm the limiting behavior of the graph because at every interval up to infinity it would approaching zero?
*February 24, 2010*

**calculus**

I meant to say zero
*February 24, 2010*

**calculus**

is it because every interval of one the integrals approach 1?
*February 24, 2010*

**calculus**

Yes I have, but I don't understand why the integral would go to zero. And the description of the interval.
*February 24, 2010*

**calculus**

Posted by Paul on Friday, February 19, 2010 at 3:57am. I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of the function when N={whatever integer}? And what happens to the graph and to the value of the ...
*February 24, 2010*

**calculus II**

But how can you tell the limit?
*February 24, 2010*

**calculus II**

I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of the function when N={whatever integer}? And what happens to the graph and to the value of the integral as N approaches infinity? Does the graph ...
*February 24, 2010*

**Math**

(A) y =x+3 (B) correct (C) correct
*February 21, 2010*

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