Posts by marcie

Total # Posts: 51

chemistry
Which direction would equilibrium shift in the reaction N2 + 3H2 2NH2 + 22,000 cal if it is cooled?

Chenmistry
Fe2O3 + 3C = 2Fe + 3CO How many grams of C are required to react with 2.50 moles of Fe2O3 ?

physics
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. The temperature of the gaseous planet varies linearly with the height of the atmosphere. The delicate instruments on board completely fail at a height of 61.5 kilometers. What is the ...

space science
In size, from largest to smallest, the correct order for the Galilean moons is:

Math Probability
In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag Probability Blue marble Red marble White marble Total:

english
mistletoe

Biology
living things meet the 7 themes of biology.. 1. reproduction 2. metabolism 3. interdependance 4. evolution 5.heredity 6.cell structure & function 7.homeostatsis

English
ok thanks:)

English
When you do an internal citation, following a direct quote, do you put a period after the quote and another after the citation, or just one at the end of the citation?

English
What is your question? I might be able to help some.

world history
Ok, thank-you very, very much.

world history
i have to write an english paper, but its a history-ish paper. The prompt says:"Research the style of fighting and combat from the Ancient Greeks and Romans in comparison with today. Include information about any of the following: training, weaponry, tactics, and ...

Math
Can someone help with this equation? -5+15n-20-12=13

Physics
i don't really know how to balance a reaction 2C2H2(g)----> fCO2(g)+______?

um im not sure if this is rigt but i think that the ranges would be -5, -3, -1, 1, 3. your equation is in slope intercept form so you start with -1. if you would go with the slope which would be 2, then your next number up is 1, then 3. it can also go down which is where you ...

Spanish
what does que bueno mean in english? *there is and accent over the "e" in que. i just cant figure out how to get it on there =]*

Algebra
your final cost for the 20 lb blend will be \$168. K=\$9 and S=\$8. you have to find out how many pound of k plus how many pounds of s will equal 20 pounds and \$168

spanish
thanks

spanish
how do you spell calculator in spanish?

algebra
well first add like terms so you add 12000 and 6000 which gives you 18000+7t^2....but im not sure what to do from there

algebra
the slope would be the same as that ones

math
0.73333333333333333333333

math
90

Algebra
is it 5x or 5 times 20

science
false- - ions are when one element gives up and electron and another element takes it so they can fill up their outer shells.

physical science
false

math
divide the multiple by 2????

Math
15

sodium becomes postively charged- - it give up an electron chlorine becomes negatively charged- it take the electron that sodium gives up

History
education required

History
decides what is best for the country... im still thinking about the other e

History
how about r- resident of 14 years and native born...move it down. e- elected by the people

i don't know sorry

so CO3 would be that carbon has 6 electrons and oxygen has 8 meaning that c has 4 electrons in the outer shell and o has 6. they don't make an even 8 so idk how they make and ion because they like to have a full outer shell and those combining wouldnt do that. so imnot ...

hmmm...you would have the same # of protons and electrons in its normal state, but an ion- the element gives up an ion and another element takes that ion...what is carbonate...carbon and what?

it depends....is the carbon giving an electron or taking one?

Math
im pretty sure anyway

Math
160 oz per gallon

Math
i don't get your formula but if you have 3 oz of oil for 1/2 gallon of gas then you need 6 oz of oil for 1 gallon. you need 5 gallons so you multiply 6*5. you need 30 oz of oil.

English/Grammar
i think you would use a colon too

English/Grammar
I get what you mean about that and i would leave the period but it depends... what come before that sentence?

geometry
thanks that helped alot =]

geometry

physical science

physical science
no sorry...we are doing the same thing in science and we take the test over it tom...we never talked about those things from 4 and 5....i don't really get it either.

physical science
im pretty sure 2 is d.

physical science
1. b 3. b not sure about the others though.

geometry
thanks that explains it even better

geometry

geometry
im really confused about all the different kinds of angles...how do i figure out how to tell them apart and remember it? ? ?

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