Wednesday
December 7, 2016

Posts by maci

Total # Posts: 83

Math
In a school survey year 6 found that for every 4 girls there were 5 boys what is the ratio of girls to boys
December 5, 2016

Math
Ok thank you so so much Damon. :)
December 17, 2015

Math
You went to lunch with your friend and the bill is \$19.00 your lunch is \$3.00 more than your friends. How much was your friends lunch? f + 3 = 19; \$8.00 3f + 2 = 19; \$8.00 2f + 3 = 19; \$8.00 2f - 3 = 19; \$8.00 Mark weighs 74 pounds. together he and his sister weigh 6 pounds ...
December 17, 2015

English
How do I make this more positive? Dear renter: Effective march 1, the rent for your parking space will go up \$10 a month. However, our parking lot is still not the most expensive in town. Many of you have asked us to provide better snow and ice removal and to post signs saying...
April 22, 2014

how do varieties of informative and positive messages adapt the basic pattern?
April 3, 2014

Pre-Ap English
My teacher has assigned a project. I have to make a collage for Pip in Great Expectations. I have to use symbols that would represent what he loved or feared while he was in The Forge, London, The Forge again, then to Cairo. Do you know of any symbols I could use that would ...
March 23, 2013

144 = 2 * 2 * 2 * 2 * 3 * 3 2 to the 4th power and 3 to the 2nd power.
September 25, 2012

math
My teacher never specifically told us how to do these type of problems and now i have 10 of the same type of questions for homework due when i come back to class 2 days. a^7b^6 ________ a^5b Im not asking for the answer but the steps to get to the answers to these type of ...
August 28, 2012

Chemistry PLZ HELP!!!!!
give equations showing the commercial methods for preparations of the halogen (F2, Cl2, Br2, I2)
April 10, 2012

Chemistry PLZ HELP!!!!!
a. describe the frasch processfor mining sulfur. b. why must the water be superheated?
April 9, 2012

Chemistry PLZ HELP!!!!!
describe what happens to sulphur as it is heated from room temperature to about 250 degrees c mention the various allotropes encountered.
April 9, 2012

Chemistry PLZ HELP!!!!!
give five uses of phosphorus either as the acid or as one of its salts.
April 9, 2012

Chemistry PLZ HELP!!!!!
April 9, 2012

Chemistry PLZ HELP!!!!!
what are the names of three important nitrogen fertilizers with their formulas?
April 9, 2012

Chemistry PLZ HELP!!!!!
though both nitrogen and oxygen are diatomic gases, nitrogen is far less reactive than oxygen. Why?
April 9, 2012

Chemistry PLZ HELP!!!!!
Lauren: yes im graduating 2 years early Bob: that's the one i used!
April 9, 2012

Chemistry PLZ HELP!!!!!
I'm 16 and graduating in May. But im in advanced chemistry i don't know why but i am :) Thanks again.
April 9, 2012

Chemistry PLZ HELP!!!!!
Differentiate between oxide, a peroxide, and a superoxide?
April 9, 2012

Chemistry PLZ HELP!!!!!
write balanced equations of hydrogen with the following: a. potassium b. fluorine c. sulfur
April 8, 2012

Chemistry PLZ HELP!!!!!
write balanced equations of hydrogen with the following: a. potassium b. fluorine c. sulfur
April 8, 2012

Chemistry PLZ HELP!!!!!
what types of close packed unit cells do most metals assume?
April 8, 2012

Chemistry PLZ HELP!!!!!
distinguish between aorphous and crystalline soilds and give an example of each
April 8, 2012

Chemistry PLZ HELP!!!!!
THANK YOU
April 8, 2012

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012

Chemistry PLZ HELP!!!!!
which intermolecular forces would exist between molecules of: a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
April 8, 2012

Chemistry PLZ HELP!!!!!
explain the difference between hydrogen bonds and dipole dipole forces.
April 8, 2012

Chemistry PLZ HELP!!!!!
how are intermolecular forces different from chemical bonds?
April 8, 2012

Chemistry PLZ HELP!!!!!
what conditions must exist for a polyatomic molecule to be nonpolar?
April 8, 2012

Chemistry PLZ HELP!!!!!
Thanks got it now!
April 7, 2012

Chemistry PLZ HELP!!!!!
what shape would you expect a molecule to hove that was based on an atom with only two bonding pairs of electrons? Three bonding pairs? Four?
April 7, 2012

Chemistry PLZ HELP!!!!!
what shape would you expect a molecule to hove that was based on an atom with only two bonding pairs of electrons? Three bonding pairs? Four?
April 7, 2012

Chemistry PLZ HELP!!!!!
what do we mean when we describe a molecule as being polar?
April 7, 2012

Chemistry PLZ HELP!!!!!
Thank you again!
April 7, 2012

Chemistry PLZ HELP!!!!!
Tell whether the bonds between the following atoms are polar covalent or pure covalent bonds. a. Si-Si b. H-O c. C-H d. C-O e. Cl-F f. Cl-Cl g. N-H h. O-O
April 7, 2012

Chemistry PLZ HELP!!!!!
Thank you so much!
April 7, 2012

Chemistry PLZ HELP!!!!!
Predict what type of bonging predominates in each of the following. a. AsCl3 b. LiBr c. CuNi d. SO2 e. XeF6 f. Fe g. MnF2 h. HCN i. Al2O3 j. KCl k. O2 l. Cr
April 7, 2012

Chemistry PLZ HELP!!!!!
if Ca and F atoms are allowed to react what will be the electron configurations and lewis structures of the resultant ions?
April 4, 2012

Chemistry
if Ca and F atoms are allowed to react what will be the electron configurations and lewis structures of the resultant ions?
April 4, 2012

Physical Science
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
January 31, 2012

American Government
what are some problems with regulatory agencies?
October 31, 2011

American Government
what distinguishes the irs and osha from other regulatory agencies?
October 31, 2011

Chemistry Help!!
How are intermolecular forces different from the forces that bond atoms together into molecules? How are they similar?
October 25, 2011

Chemistry Help!!
why is it impossible to draw a distinction between natural substances and chemical substances?
October 25, 2011

Chemistry Help!!
which element do not combine readily with other elements because they already have eight electrons in their outermost shell?
October 20, 2011

Chemistry Help!!
why is it impossible to draw a distinction between natural substances and chemical substances?
October 20, 2011

American Government
what are the three ceremonial functions of the president as chief of state?
October 18, 2011

American Government
what is the foundation of the president's authority and influence?
October 18, 2011

American Government
explain the importance of a president's character.
October 18, 2011

Chemistry Help!!
never mind
October 17, 2011

Chemistry Help!!
Predict whether triangle s would be positive or negative for each of the following; give a reason for your answer.
October 17, 2011

Chemistry Help!!
Arrange the following systems in order of increasing randomness or disorder(bring with the most ordered system) 1 mol liquid ammonia 1 mol gaseous ammonia 1 mol solid ammonia
October 17, 2011

Chemistry Help!!
when triangle s (entropy) is positive does that mean that the disorder has increased or decreased? Explain
October 17, 2011

Chemistry Help!!
how many joules of heat are needed to vaporize 50.0 g water at 100.0 C?
October 12, 2011

Chemistry Help!!
how many joules of heat are needed to heat 900.0g water from 18.0 C to 98.0 C?
October 12, 2011

Chemistry Help!!
How many joules of heat are required to melt 60.5g of ice at 0 degrees C?
October 12, 2011

Chemistry Help!!
whatever is easier!
October 12, 2011

Chemistry Help!!
Propane(C3H8), the major component of LP game, is often used as heating and cooking fuels in homes. When propane is burned( reacted with oxygen), CO2(g) and H2O(g) are produced. 1) Write an equation for the reaction and calculate the enthalpy change for the combustion of ...
October 12, 2011

Chemistry Help!!
i balanced the equation: 2 Na + 2 H2O = H2 + 2 NaOH. What delta Hf value am i suppose to look up?
October 11, 2011

Chemistry Help!!
is it: Na + H2O -> ???? Hf is hafnium. i don't know this stuff.
October 11, 2011

Chemistry Help!!
sodium metal reacts violently with water to produce aqueous sodium hydroxide and hydrogen gas. calculate the enthalpy change for this reaction.
October 11, 2011

Chemistry
So just any random number I can quadruple it to?
September 28, 2011

Chemistry
If the pressure on a balloon were quadrupled what would happen to the balloons volume?
September 28, 2011

Chemistry
So when the whale goes farther in the water the pressure increases and the volume of his lungs decreases. When the whale ascends, the pressure decreases and the volume of his lungs increases. Does that make sense?
September 28, 2011

Chemistry
I don't know how to explain it tho.
September 28, 2011

Chemistry
A sperm whale dives from the surface to great depths the air in its lungs progessively shinks until the lungs are completely collapsed. when the whale ascends its lungs return to their former size. use boyles law to explain this phenomenon.
September 28, 2011

Chemistry
I still don't get how to get the answer.
September 28, 2011

Chemistry
i don't see the example you gave me.
September 28, 2011

Chemistry
Ok but What volume in L of SO2 at STP can be produced by the burning of 1.00 g P4S3 in excess O2?
September 28, 2011

Chemistry
The reaction for the burning of one type of match tip is as follows: P4S3(s) + 8 O2(g)----> P4O10(g) + 3 SO2(g) What volume in L of SO2 at STP can be produced by the burning of 1.00 g P4S3 in excess O2?
September 28, 2011

Chemistry
Why is it necessary to correct the pressure of a gas that is collected over water?
September 28, 2011

Chemistry
Consider three gases: chlorine, freon-12, and radon. According to Grahams law of diffusion which gas would you expect to diffuse the fastest through a room? Which would diffuse slowest?
September 28, 2011

Chemistry
when calculating stoichiometric relationships in gas reactions using the combined gas law why is it important to convert the volumes and pressure to STP?
September 28, 2011

Chemistry
what is the partial pressure of N2 in the mixture of N2 and O2 having a total pressure of 1075 torr if the partial pressure of O2 is 720 torr?
September 28, 2011

geometry help
115=x(4+19)/2 115/11.5= 11.5x/11.5 x=10 Height= 10
June 1, 2011

Science
What are the different types of seeds??(mustard,apples,etc)
December 9, 2010

gym question?
we were told to pick a good exercise routine to exercise to i picked this one and i was wondering if its good cardio. if you have one please share. 30 min treadmill 30 minutes bike 30 min treadmill 30 min "swishy thing that goes circular" (dont know the name) 30 ...
February 5, 2010