Friday

April 25, 2014

April 25, 2014

Total # Posts: 42

**physics**

A 25000 kg rock is located at a distance of 7.6 x 108 m away from a small planet of mass 7.8 x 1023 kg. What is the mutual force of attraction between these two

**physics **

student wanted to drive from Austin to San Antonio, 80 miles south of Austin on highway I35. Unfortunately, he entered the highway in the wrong direction and drove all the way to Waco — 100 miles north of Austin — before he noticed his error. In Waco, he turned arou...

**chemistry**

a sample of Ag2S has a mass of 62.4g. what mass of each element could be obtained by decomposing this sample?

**chemistry**

heating copper sulfate pentahydrate will evaporate the water from the crystals. leaving anhydrous copper sulfate,. a white powder. what mass of anhydrous CuSO4 would be produced by heating 500.0g of CuSO4*5H2O

**chemistry**

is that dot between the compounds multiplication?

**chemistry**

calculate the percentage of water in each of the following hydrates SrCl2*6H2O

**chemistry**

In the reaction Mg(s) + 2HCl(aq) d H¿(g) + MgCl¿(aq), how many moles of hydrogen gas will be produced from 250.0 milliliters of a 3.0 M HCl in an excess of Mg?

**SCIENCEEEE! ! ! ! !**

hOW muCH WATER should you drink dailY In OuNcEs AnD LiTeRs?

**Algebra**

C(squared)+3c+1=0

**chemistry**

calculate the theoretical mass (g) of hydorgen chloride formed in the reaction of sulfuric acid (2.00 mol) with sodium chloride (150g) 2NaCl(s) + H2SO4(aq) = 2HCl (g) + NaSo4(S)

**chemistry**

a solution of sulphuric acid is titrated (allquot 20.0ml) with a solution of sodium hydroxide (0.1234M) 26.73ml of the base being required to the end point with phenolphthalein. calculate the molarity of the sulphuric acid solution

**physics**

two tractors pull against a 1000 kg log. if the angle of the tractors chains in relation to each other is 18 degrees and each tractor pulls with a force of 800N what forces will they be able to exert

**chemistry**

a complex apparatus has heat capacity 891J/c . calculate the heat absorbed by the apparatus to change its temperature by 1.3 C

**chemistry**

a sample of iron (35.0g) absorbs 5.50J. of heat. calculate the increase in temperature that occurs

**chemistry**

a sample of carbo (12.5g) abosorbs 888J of heat its temperature changing form 27.0 C to 127 C . Calulate specific heat of Carbon

**chemistry**

a sample of carbo (12.5g) abosorbs 888J of heat its temperature changing form 27.0 C to 127 C . Calulate specific heat of Carbon

**chemistry**

calculate the quantity of heat (J) which flows froma 125g sample of magnesium as it cools from 650K to 300K

**chemistry**

which of the following samples has the greatest number of atoms 20 million O2 molecules 0.1 mole of Fe 2.0 mole of Ar 100 g of Pb 5 g of He

**chemistry**

calculate the mass of sulfur in 6.0 g of Iron (III) sulfate

**algebra**

2c-13=5c+11

**Chemistry**

What acid and base must react to form Na3PO4?

**algebra**

what is the effect on the graph of teh equation 6x+3y=12 if 12 is changed to 36?

**math**

thanks

**math**

A line segement from the center to any point on the circle is a _______? thanks Payton

**math**

Thank you!

**math**

3.75? Am I right?

**math**

Bowser's dog food is 40% meat. How much dog food does Bowser need to eat in order to get 1 1/2 kilograms of meat? A) 3.7 kilograms B) 3.75 kilograms Thanks

**7th grade English**

So I have a essay due tomorrow and it is The difference oF the book and the movie The Outsiders but I have no clu wat to write i havent read the book in a month I wanna if anyone can remind wat is one difference between the book and movie.

**math**

what are the five names to write of 23

**math**

like decimals and other things like that thats what i mean

**math**

my question is what are the names of 23

**math**

i mean no

**math**

no

**math**

yes

**Math**

writing the names of 23

**Math**

what are the names of the number 23

**Math**

help me

**Math**

five names for the number 23

**math**

what is the answer for the question name five numbers for the number 23

**biology**

how are amino acids put together and what does this make?

**biology**

what are the monomers of lipids?

**MATH**

It is definetly the 18th

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