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January 30, 2007
If you start with 20.0 grams CaCO3, how many moles of CaCO3 do you have?
mols = g/molar mass. Approximately 0.200 mols.
0 answers
asked by
key
508 views
what is 10% of 20% of 30% pf 100?
100 * .30 = 30 30 * .20 = 6 6 * .10 = .6 I hope that's what your looking for! Are these three
0 answers
asked by
preston
523 views
in the equation 3y - x=2
what is the slope of the line of this equation? Using the equation y=mx+b you have to solve 3y-x=2 for
0 answers
asked by
cindy
466 views
what are some examples of covalent bonds and what are some examples of ionic bonds?
Electrons are shared in covalent bonds.
0 answers
asked by
Leeann
718 views
Using the distance formula I have to prove that ABC are colinear.
A(-1, -2) B(2, 2) C(8,10) I got the square root of 17 for line
0 answers
asked by
T. J.
413 views
what is 20,295 divied by 99
205 That's 100% PATHETIC
0 answers
asked by
lauryn
434 views
GDP per capita in the U.S. was approximately $41,000 in 2005, what will it be in the year 2015 in GDP per capita grows each year
0 answers
asked by
sheela
519 views
Predict the precipitate that forms:
HCl + AgNO3 --> ??? i don't know what the answer is but i think it is Cing04 AgCl. You need
1 answer
asked by
key
1,737 views
Who killed Thomas Cromwell.?
Thank you for using the Jiskha Homework Help Forum BUT why is this under "geography?" By order of
0 answers
asked by
mary
503 views
who killed thomas cromwell
http://www.bbc.co.uk/history/historic_figures/cromwell_thomas.shtml Good work Can you help me with
0 answers
asked by
mary
438 views
thanks DrB
I got AgCl also Could you check this problem as well? If you start with .500 moles of NaF, how many moles of CaF will
0 answers
asked by
key
1,063 views
what is 1/2 Divided by 2.789
Use your calculator. i tried but i says error You need to change the fraction to a decimal. 1/2 =
1 answer
asked by
mary
505 views
Could you explain this problem to me?
What is the sum of the coefficients (including “1”) of the balanced equation? __CaCO3 +
0 answers
asked by
key
639 views
What are the four charactoristics of a mineral rock?
http://en.wikipedia.org/wiki/Mineral
0 answers
asked by
mary
454 views
income total spending
$10,000 $10,000 20,000 18,000 50,000 35,000 100,000 60,000 If a sales tax of ten percent is levied on all
0 answers
asked by
sheela
564 views
I was way off on the other problem.
But I see how you got the answer. Last one...thanks i'm learning more here thn class What is
0 answers
asked by
key
1,069 views
Hypothetical Economy:
-Money Supply= $200 billion -Quantity of money demanded for transactions=$150 Billion -Quantity of money
0 answers
asked by
Frank
722 views
0.15 percent of 12 trillion
Times 12,000,000,000,000 by .0015 to get 18,000,000,000
0 answers
asked by
georgia
386 views
what is an uncompensated ion?
It is a very rare term. I can't find it in my huge Oxford Science Dictionary. There is one
0 answers
asked by
Anna
557 views
Hi i'm supposed to find a hydrocarbon with a molecular mas greater than 100g/mol, and i have no clue by using this properties
0 answers
asked by
claudia
760 views
in the equation PV=nRT for gases what do each letter stands for?
P is pressure (usually in atmospheres). V = volume in liters. n
0 answers
asked by
claudia
545 views
Is this correct
-2.75 would be in fraction: -2 and (3)/(4) Well actually just -2 3/4 You don't need the word "and" unless spoken.
0 answers
asked by
jasmine20
661 views
Name at least three products that are used to manufacture automobiles or trucks?
What government imposed barriers stop or hinder
6 answers
asked by
Kelsey
633 views
Determine the number of uncompensated ions (both total number and as a
percentage of the bulk ions) required to establish a
0 answers
asked by
Anna
732 views
If departing tenants sell access to rent-controlled apartments, whi is likely to end up with the apartments? How else might
2 answers
asked by
sally
728 views
for how many years was it a rational fear of Communism before it turned into an irrational fear?
Thank you, Lance, for my chuckle
2 answers
asked by
Coral
547 views
what is the value for absolute zero in celsius?
-273.15°C
0 answers
asked by
Chrissy
410 views
was there 6 children in her family or 5and were there names alice,willie,mable,eleanor,and daisy if there is another who is
0 answers
asked by
Holly
478 views
i had a lab that combined
1/2 cup of H2O2 (118.3 ml) and 2 tsp of yeast. is the equation for the reaction 2H2O --> 2H2O + O2 what
0 answers
asked by
key
726 views
what is a rent-controlled apartment?
http://en.wikipedia.org/wiki/Rent_control
0 answers
asked by
shelly
505 views
why will an eggshell dissolve in the acetic acid of vinegar and not the phosphoric acid of coca cola?
Acetic acid reacts with the
0 answers
asked by
rishi
681 views
How else might scarce rent-controlled apartments be distributed?
0 answers
asked by
sarabeth
407 views
I have three questions that I could not find in my book, even though they are probably there. Plz help, I have to do well on
0 answers
asked by
Emily
632 views
if you travel westward along the 80th parallel north of the equator from the international Date line to 150 degrees East
0 answers
asked by
Marisol
1,133 views
How many degrees of latitude and longitude separate a location at the intersection of the international date line and the
1 answer
asked by
lisa
833 views
1. Identify all potential lawsuits (eg. parties and theories) which could occur.
Case: David is a former employee of 123 Bytes.
4 answers
asked by
Anthony
571 views
Why did Thutmose III try to get rid of everything that had to do with Queen Hatshepsut?
Because he envied her and hated her and
0 answers
asked by
Julia
518 views
Goemetry
Find the area of a triangle whose altitude is 7 ft & whose base is 22 ft. Complete each sentence. Can anyone help me....
1 answer
asked by
Ana - confused
1,253 views
Can someone help me think of physical, environmental, and social factors that might affect criminal behavior. Any websites would
1 answer
asked by
jeff
699 views
What does it mean to factor an algebraic expression into prime factors?
Prime factors are factors that cannot be further
0 answers
asked by
jasmine20
629 views
What does these colleges have in common... Samford, Georgia, Marshall, Illinois State, Murray State, Cincinnati, UTC besides the
0 answers
asked by
Cindy
971 views
What is the meaning of this proverb?:
"He who is afraid of the leaves must not go into the forest." Maybe it has the same meaning
3 answers
asked by
Anonymous
2,924 views
How do you find the equation for this problem?
Conic Center(1,3) directrix x =7 snd corresponding focus (3,2)
0 answers
asked by
Bob
973 views
write a balanced chemical equation for the reaction of aluminium selenide with water (to include physical states of reactants
0 answers
asked by
rikki
600 views
when the oxide of arsnic is heated it sublimes and becomes a gas at 650oc and a pressure of 690mmHg the 0.927g sample of the
0 answers
asked by
john
486 views
Hello, please could someone help?
Will calcium chloride (CaCl) granules be a suitable drying agent for drying hydrogen selenide
1 answer
asked by
Junior
631 views
6x +2
_____ 8 Reduce ??? Is it 2x+1 ____ 4 Am I doing this right? Correct.
0 answers
asked by
deborah
416 views
Reduc x^3 - x^2
___________ x^4 Is it x-1 _____ x^2 Is this right? yes
0 answers
asked by
deborah
381 views
8a + 8b
_______ 12c + 12d factor to a + b _______ c + d Is this right? No, what happend to the 8/12 ? would it be 2 (4a + 4b)
0 answers
asked by
deborah
420 views
Can a fable have gods that are directly involved with the plot of the story?
Are all fables really short and not descriptive?
0 answers
asked by
samantha
629 views
What is the sum of the coefficients (including “1”) of the following reaction?
Sodium sulfate + calcium hydroxide ??? Na2SO4
0 answers
asked by
key
508 views
what are the topic the students are doing for their englsih sats rather than macbeth
Whenever you have questions about AP tests
0 answers
asked by
laiba
532 views
7 -y
_____ Y - 7 Does this factor to 1???? Assuming that the two Ys (y and Y) indicate the same unknown, it would be -1. (7 -
0 answers
asked by
deborah
369 views
-5k + 15
_________ k2 - 9 Does this facot to -5(K+3) _______ k^2 -9 Is this right? Nope. You have to factor the denominator to
0 answers
asked by
deborah
405 views
Okay. I'm very, very confused.
The initial question is: predict the products of the electrolysis of a 1 mol/L solution sodium
0 answers
asked by
Rienna
886 views
What is a current issue between Native Americans and the federal government. What legislation is linked to the issue, and why
0 answers
asked by
Anonymous
605 views
Can someone explain the different gas laws to me(Boyle's, Charles, and Avogadros)Thanks
There are links to each in this article
0 answers
asked by
Chrissy
452 views
I need to know where can I find information about nike organization. Are Nike production facilites centralized or
0 answers
asked by
dre
660 views
In Cahpter 3 " A disappointment" What was the evidence that was in Darnay's handwriting?
I really recommend that you read that
0 answers
asked by
Gina
616 views
The speed of sound in a gas depends upon the average speed of the gas molecules. Why is such a relationship reasonable?
The
0 answers
asked by
Lacy
1,192 views
Does increasing the frequency of a wave also increase its wavelength? If not, how are these quantities related?
high frequency.
0 answers
asked by
Tammy
665 views
Under what circumstances, if any, will a converging lens form an inverted image of a real object? Under what circumstances, if
0 answers
asked by
Mae
1,011 views
Could someone please just check my answers for this? I want to make sure I did these right.
1. A student reported the mass of ten
0 answers
asked by
Bryant
4,237 views
Determine the number of uncompensated ions (both total number and as a
percentage of the bulk ions) required to establish a
0 answers
asked by
Ann
598 views
help me use the number 'e' as a natural base.
You have to be much more specific. This question cannot be answered, it is very
0 answers
asked by
amanda
544 views
what is anldegn unscrambled
Try England
3 answers
asked by
Anonymous
531 views
I JUST READ SOMEWHERE THAT PABLO PICASSO WAS ALSO A WRITER. I THOUGHT HE WAS JUST A MODERNIST PAINTER AND SCULPTOR. DOES ANYONE
0 answers
asked by
JAYLEE
493 views
Find x in terms of y
e-zgeometry. com/pow/pictures/25.gif It would be helpful if the verticies had letters at the site you left:
0 answers
asked by
Seth
486 views
What types of waves can be refracted? Under what circumstances does refraction occur?
When a wave travels from one medium to
0 answers
asked by
Tindy
616 views
Why are formal legal rules alone not an aclequate ethics system for business?
Society is based on ethics systems as well as
0 answers
asked by
mike
705 views
Using f is odd if f(-x) = -f(x) or even if f(-x) = f(x) for all real x, how do I
1)show that a polynomial P(x) that contains only
0 answers
asked by
Jen
753 views
Express
P(x) = x^5 + 6 x^3 - x^2 - 2x + 5 as the sum of an odd function and even function. Podd(x)=x^5 +6x^3- 2x Peven(x)= -x^2 +
0 answers
asked by
Jen
1,140 views
what happens if the hotfix you are installing is older than the systemscurrently installed service pack?
0 answers
asked by
shaylkj
842 views
A 75 kg man on a 39kg cart traveling at a speed of 2.3 m/s. He jumps off with zero horizontal speed realative to the ground.
1 answer
asked by
Brian
527 views
can someone correct this for me please.
Directions: Evaluate each function for the value specified. f (x)=x^2+7c+10, f (-2) so
0 answers
asked by
Jasmine20
974 views
give examoples of cultural valves in art form
http://www.cic-wildlife.org/index.php?id=77
0 answers
asked by
Anonymous
492 views
what evidence supports the clarification that H2Se 03 is an acid and how do i identify the positive ions present inthe aqueous
0 answers
asked by
mickey
719 views
Why are combustion reactions always exothermic?
Is it just because it gives off heat? Thanks ahead of time Exothermic MEANS it
0 answers
asked by
Mercedes
619 views
how is the oxide of arsenic worked out when its in its gas state
please help im flumuxed Please clarify your question? What do
0 answers
asked by
donald
440 views
Does anyone know what arguments could come from nuclear energy?
An argument for nuclear energy is that it is more efficient than
0 answers
asked by
sam
638 views
why is the molecular formula of oide of arsenic in its gaseous state is not neccessarialy the same as its empirical formula
what
0 answers
asked by
donald
561 views
A 0.165kg cue ball with an inital speed of 2 m/s bounces off the rail in a game of pool. For x and y axses located the counce
0 answers
asked by
Brian
661 views
Henry Wadsworth Longfellow, James Russell Lowell, Oliver Wendall Holmes and John Greenleaf Whittier belong to the group known as
0 answers
asked by
Missa
581 views
how do i calculate %of arsenic and oygen by mass and chem composition of the oxide
that has been formed 0.702 sample of
0 answers
asked by
mickey
654 views
doe sanyone know what a interval is in math terms? i need the real definition and
it is hard and i can not find it anywhere? can
17 answers
asked by
Kayla
711 views
Literature during this period (1840-1860 "The American Renaissance) is permeated by the doctrine of individualism. Explore the
0 answers
asked by
Missa
673 views
what is the atomic number of ununhexium and the full symbol
is this a transitional element that is a metal and what is its
0 answers
asked by
mickey
677 views
How do you separate sand from salt in a homogeneous expeiriment?
Add water to dissolve the NaCl, pour through a filter paper. The
0 answers
asked by
ashley
554 views
what can the congress do
http://www.google.com/search?q=articles+confederation+congress&rls=com.microsoft:en-us:IE-SearchBox&ie=U
0 answers
asked by
christine
595 views
What are the most significant similarities between the Chinese American and Japanese American (cultural) experiences? What are
1 answer
asked by
Letitia
836 views
when you get a small little chance can you check my math in last message i posted. thank you.
I read the post earlier but didn't
0 answers
asked by
Jasmine20
627 views
Can some one explain to me the ouctome of this action dealing with ethe uprising in Europe.
Action: French citizens' armies with
0 answers
asked by
Bryan
969 views
Identify the period and amplitude of each function.
y=3cosÈ y=-2cos2t y=2cos1/2t
0 answers
asked by
Natasha
374 views
Need Major differences and commonalities apparent between Mexican Americans and Puerto Ricans
Thank you for using the Jiskha
0 answers
asked by
sue
621 views
What polygon has 20 diagonals?I don't know how to figur this out.
THANKS!!!! A rectangle (4 sides) has 2 diagonals. A hexagon (6
1 answer
asked by
cole
630 views
3x^2 + 17x + 10
*I really don't get this but you have to factor completley. (3x+2)(x+5) thanks. - can you help me with my other
0 answers
asked by
Margie
448 views
Use the table to estimate how long it took Stella Pajunas to type 100 words
# of words: 36 72 108 144 180 216 # of sec: 10 20 30
0 answers
asked by
Susie
558 views
Factor:
2xy – xz + 2wy – wz (x+w)(2y-z)
0 answers
asked by
Margie
412 views
A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the
0 answers
asked by
Brian
924 views
Solve by factoring:
One of the solutions to the quadratic equation x^2 - 13x + 30 is 3. What is the other solution? Is it:(x+3)
0 answers
asked by
Margie
487 views
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