Monday

April 21, 2014

April 21, 2014

Total # Posts: 285

**DrBob222 follow up**

Then...Does your experimental empirical formula (answer to #5) agree with the known empirical formula (answer to #6) of zinc chloride? List and describe some sources of error that may have affected your results The only factor of error I can think of is that the ions weren'...

**DrBob222 follow up**

The next question is Determine the actual empirical formula of zinc chloride, based on the ionic charges of zinc and chloride ions, using your rules for ionic nomenclature. Because Zn has +2 ions and Cl has -1 the actual empirical formula is ZnCl2

**DrBob222 follow up**

Thank you for your reply. The Zn in grams 1.80= .028 moles Zn and Cl in grams 0.90= .025 moles Cl The question was: What is the EXPERIMENTAL empirical formula of zinc chloride? Determine the simplest whole number ratio of moles of zinc used, to moles of chlorine reacted in the...

**Chemistry**

Is this correct? What is the experimental empirical formula of zinc chloride? Determine the simplest whole number ratio of moles of zinc used, to moles of chlorine reacted in the zinc chloride that was produced..028 moles of Zinc .025 moles of Cl .025 moles of Cl is smaller .0...

**external and internal character traits**

is external and internal traits about the person?

**French**

trente trente-cinq quarante

**4th Grade Math**

how do u do arrays and an expanded algorithm

**Science**

What is the Newtons Laws

**Algebra**

I know you are but what am i hi emily

**algebra**

number 14 is 181

**Science**

what variables can affect the sprouting of a bean seed?

**8th grade science**

How do you do a ball dichotomy?

**Social Studies**

How has the conflict (war) changed Iraq?

**Humanities**

What are the three ingredients for language splitting?

**5th grade math**

lol i ment 3 not seven

**5th grade math**

-6+(-7)= -10 i always hated this unit of negitive numbers

**5th grade**

relative unstressed syllables

**human life**

facts about human life cycle

**chemistry**

can u get me started?

**chemistry**

ok, what site is that?

**chemistry**

need essay on,(a)Briefly describe the important similarity between light and matter revealed by Louis de Broglie's discovery of matter waves, and (b)list two important differences between light and matter waves.

**math**

What is a rate and how doI find it?

**Science**

A boxer punches a sheet of paper in midair, bringing it from rest to a speed of 25m/s^2 in 0.05 secind. The mass of the paper is 0.003 kg. Show the force of the punch on the paper is only 1.5 N.

**physics**

you slide down a pole at a mass of 80kg with an acceleration of 4m/s^2, How do you show that the friction force that acts on you is 480N?

**physics**

Yea, I thought about the mass of the building pulling him up but I didn't know if 350grams would be to much to account for this. I know that people have recorded weight difference in relation to location, that is they lost weight in proportion to the decrease in gravity-I ...

**math**

place value of 78.25

**physics and math**

hi guys, i had the following question but i keep on getting it wrong, should i use -9.8 or 9.8 m/s2 for the acceleration? im confused and would really appreciate some help. A student throws a set of keys vertically upward to her sorority sister, who is in a window 3.70 m above...

**Geo**

And why is the city of jerusalem important to the jews today?

**Geo**

What sets the israelites apart from thee other groups liveing in the fertile cresent?

**mummification process**

What substance was used to stuff the nostrils

**statistics**

Can someone tell me how to run data in Megastat on attribute values. I have an assignment and I need to get descriptive statistics on education levels

**Spanish**

how do you say i am wearing a purple sweater with purple shirt and blue jeans?

**math**

-7 1/8 + 4 3/4

**math**

what is the weiight of a semi trailer

**math**

what is the weight of a semi trailer

**math**

Algebra is new this year. When my problem looks like this: n(10n). I know I have to multiply 10xn, but after that do I add or multliply my answer by n?

**6th Grade Math**

what is the weight of a semi trailer

**Topic School Suplies**

I can`t unscramble these words!! eehkossuy ceghlmosty cegghimnuw

**Maths-Algebra**

In class i was given this- Write Each of these Phrases using Mathematical Symbols: a)15 More than x = b)x Divided By 4 = c)x Times 12 = d)3 Less than twice x = And i Don't understand What to Do!?!?! Anyone Could Help that would Be really Great.

**science 7th grade**

why are tears considered to be a nonspecific mechanism of the immune system?

**Precalculus**

opps a double post... sorry

**Precalculus**

Simplify-exact form 2ln xpower squareroot e and Expand the log ln 3power sqaure root x^2y/x+5

**Precalculus**

Simplify-exact form 2ln xpower squareroot e and Expand the log ln 3power sqaure root x^2y/x+5

**science**

thank you

**science**

What about the midwest states? How do the farmers make a living in winter if all the crops are snowed over and the livestock have to stay inside? What do they do?

**science**

What do farmers do with livestock in the winter? Thanks!

**science**

thank you

**science**

Oh, so the ocean would be a sink of human-generated carbon dioxide? I was thinking more like an ozone hole.

**science**

Identify a major 'sink', or storehouse, for human-generated carbon dioxide. Thanks for the help.

**physic**

A rotating star expands to become a red giant, increasing its average radius from one million km to 100 million km without changing its mass. What happens to the velocity of a piece of this star located at the average radius? any help would be great THANKS

**Social Studies**

its realy what you think feels right if its some way of hurting someone or any animals oppose the topic!

**Social Studies**

its realy what you think feels right if its some way of hurting someone or any animals oppose the topic!

**Poetry**

Thanks! :P

**Poetry**

Like this?? Where have you been, I almost forgot you. Its been a year or so, Since I’ve seen you last. Why did you have to come back. I was trying to forget you And forget what you did. Why bring back the bad memories. Can’t you just leave now, Like you did before. S...

**Poetry**

please read this poem and tell me how I can inprove it. Thanks! Where have you been I almost forgot you Its been a year or so Since I’ve seen you last Why did you have to come back I was trying to forget you And forget what you did Why bring back the bad memories Can’...

**Calculus length of curve**

Hi--can anybody show me how to do this? Find the length of the curve r(t)= (sqrt2)i + (sqrt2)j + (1-t^2)k from (0,0,1) to (sqrt2, sqrt2, 0). Thank you!!!!!!!

**math**

Find the perimeterof a decagon if each of its sides are 5.9 yards long?

**chem**

thank you

**chem**

im sorry your right it is a 5 :)

**chem**

i dont know what it is but thats the equation on my hw

**chem**

how do you write the equilibrium expression for: C3H8 + SO2-><- 3CO2 + 4H2O?

**Equivalent Fractions 3**

1/4=-/12

**algebra**

please how can you solve this problem....... 2(y-6)=3y+12-y

**Science**

Explain the main differences between budding and regeneration.

**Science**

Explain why it is an advantage for organisms to have more than one means of reproduction

**chem**

for the reation: B203 + 3Ca = 2B + 3 CaO how do i attempt to know which 1 is oxidized? I really do not understand chemistry its my weakest subject

**Chemistry**

how do you assign oxidation numbers t o an element? i know u se the periodaic table but i dont know how to find the number

**reading**

can you please help me unscramble these words vamsels----veeyttitina and swypl thank you

**SCIENCE**

I REALLY need help. how do you set p a population density problem??? i totally forget!!

**math**

Does anyone know what function value is and can someone show me an example? Thanks for helping

**chemistry**

how do u set up the lewis structure for H30+? i know the available electrons is 3 but it has a +1 so it makes ir 2??

**Math**

can someone please tell me how to solve problems like this>>>> 3/4q -7=8 3/4 is a fraction Thanks for helping me

**math**

thanks for helping me with my math Ms.Sue. I have tried to work on this for a very long time.

**math**

Explain how to identify the greatest and least values of a set of data when looking at a circle graph.

**Science**

You eat many different vegetables and fruits. Describe four vegetables or fruits that you eat different parts of or stages of the plant in its life cycle. List each vegetable or fruit and the part or stage of its life cycle

**Math**

i have a graphing calc so all i do is put in the 2 line and it gives me the point they intersect..but the anser is (-20) ot 20 so be careful!

**chem**

how do you draw the lewis structure for PBr3?

**math**

x is equal to -20 you can plug it back in to check

**Science**

What is a 12 letter work that has a t as its 5th letter that means an observstion involving desctriptions based on instrunent measurments.

**Lions Creek**

What is a 12 letter word the is the observations involving descriptions based on instrument measurements

**math**

explain how a number can name something

**English**

For an English assignment, I have to put five items in a bag. One of the items must relate to my responsibilities as a citizen. How can I have any responsibilities as a citizen if I am still considered a kid? Could it mean like volunteering or something? Since I volunteer at t...

**science Please HURRY!!**

Plz!!! HELP MEE!!! Are there any similarities between elements and compunds? Are there any similarities between elements and mixtures? <G>Yes they are both made of matter and hence occupy space. They occur in 3 states Solid, liquid, Gas.<G> please read: http://www....

**social studies**

I really need some good facts on chinese immigration and mexican immigration double ASAP.I need it by 5:15 today or by 8: 45 tomorrow at the VERY latest. Thank you so much. -Madison http://memory.loc.gov/learn/features/timeline/riseind/chinimms/chinimms.html http://memory.loc....

**HELP MATH LINEAR PROGRAMMING**

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