Boo Boo

Most popular questions and responses by Boo Boo
  1. chemistry

    The following soluble salts are strong electrolytes. For each, write a balanced equation for their dissociation in water. a. LiBr b. NaNO3 c. FeCl3 d. Mg(NO3)2

    asked on November 23, 2012
  2. chemistry

    explain the following observations; A. an open can of soda loses its fizz quicker at room temperature than in the frig. B. chlorine gas in tap water escapes as the water warms to room temperature. C. less sugar dissolves in iced coffee than in hot coffee.

    asked on November 18, 2012
  3. chemistry

    A solution containing 80g of NaNO3 in 75g of H2O at 50 degrees celsius is cooled to 20 degrees celsius. A. how many grams of NaNO3 remain in solution at 20 degrees celsius? B. How many grams of solid in NaNO3 crystallized after cooling?

    asked on November 21, 2012
  4. chemistry

    Determine whether a solid forms when solutions containing the follow salts are mixed. If so, write the ionic equation and the net ionic equation. a: Na3PO4 and AgNO3 b: K2SO4 and Na2CO3 C: Pb(NO3)2 and Na2CO3 d: BaCl2 and KOH

    asked on November 21, 2012
  5. chemistry

    Use the kinetic molecular theory of gases to explain each of the following: a. a container of nonstick cooking spray explodes when thrown into a fire. b. the air in a hot-air balloon is heated to make the balloon rise.

    asked on November 10, 2012
  6. chemistry

    A solution containing 80g of NaNO3 in 75g of H2O at 50 degrees celsius is cooled to 20 degrees celsius, how many grams of solid NaCO3 crystallized after cooling?

    asked on November 18, 2012
  7. chemistry

    If isomers of an alkane have the same molecular formula, how do they differ?

    asked on November 24, 2012
  8. chemistry

    Approximately what electronegativity difference would you expect for a polar covalent bond?

    asked on October 14, 2012
  9. chemistry

    How does the bond that forms between Na and Cl differ from a bond that forms between N and Cl?

    asked on October 11, 2012
  10. chemistry

    For each reaction, calculate the moles of product (in parentheses) when 2.00 moles of each reactant is used A: 2SO2 + O2 = 2SO3 (SO3) B: 3Fe + 4H2O = Fe3O4 + 4H2 (Fe3O4) C: C7H16 + 11O2 = 7CO2 + 8H2O (CO2)

    asked on October 31, 2012
  11. chemistry

    Technetium-99m emits only gamma radiation. Why would this type of radiation be used in diagnostic imaging rather than an isotope that also emits beta or alpha radiation?

    asked on October 7, 2012
  12. chemisty

    How many mL of a 0.5M Ca(OH)2 solution are needed to neutralize 38mL of a 2M HNO3 solution?

    asked on November 24, 2012
  13. chemistry

    Explain the observation: water used to sterilize surgical equipment is heated to 120 degrees celsius at 2.0 atm in an autoclave.

    asked on November 16, 2012
  14. CHEMISTRY

    In each reaction, calculate the moles of product (in parentheses) when 3.00 moles of each reactant is used. A: 4Li+O2 = 2Li2O (Li2O) B: Fe2O3+3H2 = 2Fe+3H2O (Fe) C: Al2S3+6H2O = 2Al(OH)3+3H2S (H2S) Please show work, Thanks

    asked on October 31, 2012
  15. chemistry

    what is the molarity of the acid in when a 30mL sample of HCl is titrated with 10mL of 6M NaOH?

    asked on November 24, 2012
  16. chemistry

    Predict how changes effects equilibrium for N2(g) + 3H2(g) -----> 2NH3(g) + heat a. add heat b. remove heat c. add NH3(g) d. remove NH3(g)

    asked on November 23, 2012
  17. chemistry

    A sample containing 4.8 g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the volume after 4.00g of He is added to the 4.8g of O2 gas in the container

    asked on November 16, 2012
  18. chemistry

    A sample containing 4.8g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the new volume if 0.500 mole of O2 gas is added?

    asked on November 16, 2012
  19. chemistry

    what is the shape of a molecule if the central atom has two bonded atoms and two lone pairs

    asked on October 14, 2012
  20. chemistry

    How does a complete structural formula differ from a condensed structural formula?

    asked on November 24, 2012
  21. chemistry

    @20*C solubility - 22g CuSO4 / 100g H2O @40*C solubility - 42g CuSO4 / 100g H2O which is saturated and unsaturated a. @20*C is 6g CuSO4 / 25g H2O b. @20*C is 30g CuSO4 / 150g H2O c. @40*C is 99g CuSO4 / 250g H2O please show work thanks

    asked on November 24, 2012
  22. chemistry

    A patient with polycythemia vera(excess production of red cells) receives raioactive phosphorus-32. Why would this treatment reduce the production of red blood cells in the bone marrow of the patient?

    asked on October 7, 2012
  23. Math 116 algebra

    solve by the elimination method 3r - 7s = -28 7r + 3s = 70

    asked on July 15, 2008
  24. Math 116 algebra

    Solve using the addition and multiplication principles 5+ 6x < 53

    asked on July 15, 2008
  25. chemistry

    Calculate the amount of solute needed to make each of the solution. 225g of a 10% (m/m) K2CO3 solution .50kg of a 18% (m/m) KOH solution please show work thanks

    asked on November 23, 2012
  26. chemistry

    how do the names of covalent compounds differ from the names of ionic compounds?

    asked on October 21, 2012
  27. Math

    Soybean meal is 18% protein; cornmeal is 9% protein. how many pounds of each should be mixed together in order to get 360lb mixture that is 11% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of the soybeans meal should

    asked on July 14, 2008
  28. math

    Determine the area of the square ABCD with AB=3rd

    asked on September 11, 2016
  29. chemistry

    a. what is the effect on the Kc when the temperature of an exothermic reaction is lowered? b. according to Le Chatelier's principle, how is equilibrium in part a established.

    asked on November 30, 2012
  30. Math 116 algebra

    use < or > to make the statement true -19 19

    asked on July 15, 2008
  31. Math 116 algebra

    Find the domain of function g(x)=3/9-2x

    asked on July 15, 2008
  32. Math 116 algebra

    Graph on a munber line, where x is a real number -1< x ¡Ü 3

    asked on July 15, 2008
  1. Social Studies

    bruhhhhhhhh *hucks*

    posted on February 21, 2019
  2. Math

    It's Nicholas's on Tuesday

    posted on December 19, 2018
  3. maps and scale drawings math MATH HELP help !!!!

    Thanks to anyone who said, "B, A, B, A."

    posted on December 6, 2018
  4. math

    Thank you to everyone who said D, A, B, A, C

    posted on December 5, 2018
  5. english part 1

    the answer is B. there I read it for you

    posted on October 29, 2015
  6. chemistry

    Does that mean when heat is added it favors the reactant side?

    posted on November 28, 2012