1. english

    the new employee had aplomb,he required assistance

    asked by hi on April 22, 2010
  2. science

    What conditions are required to preserve a fossil?

    asked by scooby9132002 on May 16, 2009
  3. Chemistry

    How many mL of HCl solution are required to change pH from 2.67 to 9.25?

    asked by Rhonda on March 24, 2015
  4. chemistry

    How many grams of Na2CO3 are required to Na2S2O3

    asked by Rickia on April 4, 2011
  5. Maths

    A 2l can is 7/10 full how many more millilitres are required to fill it

    asked by Girl anomalous on November 1, 2016
  6. science

    How many grams of NH3, are required to produce 5.23 g HF?

    asked by kristen on March 31, 2010
  7. chemistry

    How many grams of O2 are required to burn 13.0g of acetylene?

    asked by Kelsey on April 25, 2011
  8. Chemistry

    if you produce 5.7 of H2O, how many liters of O2 will be required?

    asked by sarah on May 11, 2014
  9. ss

    What did Johnson required rich southerners to do

    asked by haliey on September 8, 2015
  10. chem

    how much energy is required to vaporize 1.5 kg of copper?

    asked by chase on July 22, 2014
  11. chemistry

    How many kilocalories are required to produce 12.7g of aluminum?

    asked by dakota on March 9, 2015
  12. chemistry

    How much ethanol is required to make a 2L of a 70%ww solution?

    asked by Larry on July 28, 2012
  13. chemistry

    How many grams of Na2CO3 are required to Na2S2O3

    asked by Rickia on April 4, 2011
  14. social studies

    An example of interstate cooperation required by the consitution would be

    asked by Anonymous on May 13, 2013
  15. 12th grade government/economics

    what margin is required to choose the president?

    asked by Cristina on August 24, 2008
  16. biology

    what is the correct pathway required for oxygen

    asked by colette on January 8, 2012
  17. Chemistry

    How many ml of 8.00 M Na OH is required to neutralize 200 ml of 4.00 M HCl?

    asked by Anonymous on June 16, 2016
  18. effective essay

    Across font required fro apers?

    asked by Dixie on December 6, 2009
  19. Chemistry

    how many ml of .5M HCL are required to neutralize 600 mg of Mg(OH)2?

    asked by Aron on May 20, 2013
  20. Chemistry

    How much 0.10 M NaOH (in mL) is required to neutralize 8.00 mL of the 0.10 M HC2H3O2?

    asked by John on May 2, 2010
  21. confidentiality allied health

    a hospital is required to query the NPDB when

    asked by chrys on May 7, 2015
  22. chemistry

    how many grams of h2 are required to produce 11/4000

    asked by mandlonke on March 6, 2013
  23. physical science

    how much power is required to lift the crate

    asked by crystal on November 21, 2010
  24. chemistry

    How many grams of Kl are required to prepare 500 mL of 0.04 M Kl?

    asked by Erin on September 25, 2012
  25. Statistics

    An important part of the customer service responsibilities of a natural gas utility company concerns the speed with which calls relating to no heat in a house can be serviced. Suppose that one service variable of importance refers to whether or not the

    asked by Matt on February 10, 2007
  26. Physics

    In the sport of skeleton a participant jumps onto a sled (known as a skeleton) and proceeds to slide down an icy track, belly down and head first. In the 2010 Winter Olympics, the track had sixteen turns and dropped 126 m in elevation from top to bottom.

    asked by Bonny on February 26, 2013
  27. Physics

    In the sport of skeleton a participant jumps onto a sled (known as a skeleton) and proceeds to slide down an icy track, belly down and head first. In the 2010 Winter Olympics, the track had sixteen turns and dropped 126 m in elevation from top to bottom.

    asked by Bonny on February 26, 2013
  28. biology

    What are two units of measure for the energy obtained from macronutrients? Energy units. A BTU (British Thermal Unit) is the amount of heat necessary to raise one pound of water by 1 degree Farenheit (F). 1 Joule (J) is the MKS unit of energy, equal to the

    asked by Kathlene on February 3, 2007
  29. chemistry

    To dissolve an ionic solid in water, you must first disrupt the ionic bonds that are holding the ionic lattice together. This is an endothermic process, yet many ionic solids have an exothermic heat of solution. (Heat is released when the ionic solid is

    asked by Cortney on March 17, 2015
  30. chemistry

    how much heat is released when 5.60 moles of NaOH is dissolved in water?

    asked by Samm on April 14, 2011
  31. Organic Chemistry

    How is the rate of adjusted when using a sand bath as a heat source?

    asked by Nicole on November 7, 2009
  32. Chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33.0 C into steam at 110.0 C?

    asked by E on February 12, 2013
  33. biology

    what happens to proteins dissolved in water when you heat it to 100 degrees

    asked by kay on September 22, 2010
  34. chemistry

    how does the length of time relate to the amount of heat absorbed?

    asked by jeremy on January 21, 2010
  35. physical science

    How long will a 1.2 kW electric kettle take to heat 0.8 kg of water from 20°C to 100°C?

    asked by yah on April 17, 2016
  36. 8th grade

    what will happen to sandstone when it is exposed to extreme heat and pressure

    asked by Anonymous on January 21, 2010
  37. Physics

    How come heat engines are more efficient when run at high temperatures?

    asked by Anonymous on April 16, 2018
  38. science

    How is sun related to nuclear, electromagnetic, and heat energy?

    asked by hello on November 8, 2016
  39. uA

    How much heat is needed to produce 10.5 moles of methane gas

    asked by Lan on September 16, 2015
  40. Science

    can you help me understand why it takes more energy to heat something bigger than something smaller please. thank you.

    asked by Abigail on November 2, 2015
  41. Chemistry

    Calculate the heat generated by the complete combustion of 15.0g of ethane.

    asked by Mrs MM on February 8, 2012
  42. college chemistry

    how do I calculate the amount of heat lost by the metal, qmetal?

    asked by Bertha on January 16, 2010
  43. Chemistry

    If 56 j of heat is added to an aluminum can with a mass of 19.6 g, what is its temperature change?

    asked by Unknown on February 8, 2012
  44. Chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33.0 C into steam at 110.0 C?

    asked by E on February 12, 2013
  45. chemistry

    what is the source of activation energy in an exothermic reaction? Is an example heat?

    asked by chemistry on April 3, 2018
  46. Science

    What absorbs more heat, aluminum foil or black paper?

    asked by Gopal on September 5, 2012
  47. Science

    what are some ideas i can put on a title page with the subject HEAT

    asked by Cyleste on September 7, 2007
  48. heat energy

    What happens to coffee as the heat enery escapes from a polystyrene cup

    asked by kerr on February 4, 2014
  49. physics

    explain why we sweat when it is hot? How does it help us? In terms of heat and temperature what happens

    asked by lou on April 23, 2014
  50. 5th grade Science

    How can two containers of water have the same temperature but different amounts of heat energy?

    asked by Dee on October 17, 2017
  51. Chemisty

    How many litres of water at 100°C are vaporized by the addition of 5.00 MJ of heat

    asked by Fred on November 7, 2014
  52. 10th grade

    how much heat does it take to convert 20g of water to steam at 100c?

    asked by eunide on February 21, 2010
  53. Chemistry

    what is the temperature change in Celsius when 29.5 L of what absorbs 2.3 kWh of heat?

    asked by Anonymous on September 19, 2010
  54. chemistry

    why should you be care when you heat your NacL solution to evaporate the water?

    asked by Anonymous on June 1, 2010
  55. Chemistry

    how many joules of heat are lost by 3580kg granite as it cools from 41.2c to -12.9c?

    asked by Anonymous on February 21, 2010
  56. chemistry

    To raise the temperature of 200.8 g of water from 50.00 °C to 60.00 °C requires how much heat?

    asked by jo on February 28, 2013
  57. science

    How many kcal of heat energy are removed from the body with every 1 L of sweat?

    asked by Val on May 17, 2015
  58. chem

    how much heat is emitted when 65.6 g of isopropyl alcohol condenses at 25 degrees C

    asked by Anonymous on May 7, 2013
  59. Honors chemistry

    How much heat (in kcal) is released when 62.2g of water at 0 degreesC freezes?

    asked by Hayden on April 16, 2014
  60. sand bath (chem)

    what are disadvantages and advantages of using a sand bath to heat something in chem?

    asked by ~christina~ on October 21, 2007
  61. chemistry

    How much heat is produced by the complete reaction of 5.91kg of nitromethane?

    asked by john on April 13, 2015
  62. chemistry

    Why is it necessary to heat the hydrate gently at first and then more strongly only after most of the water has been driven off?

    asked by Missy on November 4, 2016
  63. Science

    does water evaporating take away or add heat to the wet bulb?

    asked by Daniela on March 4, 2015
  64. Physical sciences

    The meaning of the term SPECIFIC HEAT CAPACITY for a substance

    asked by Masilo malatji on October 31, 2014
  65. Chemistry

    What would be the temperature change if 3.0g of water absorbed 15J of heat?

    asked by Leena on January 11, 2014
  66. Chemistry

    How many joules of heat are needed to increase the temperature of 18.4 g of silver from 17.0 to 41.0 °C?

    asked by Roxanne on May 26, 2011
  67. Chemistry

    How do you calculate the heat gained by the calorimeter after adding aluminium?

    asked by kevin on October 24, 2017
  68. Science

    How much heat is produced when the body metabolizes a gram of trioleylglycerol?

    asked by Johnny on May 13, 2015
  69. 10th grade

    If you heat a 5 L balloon from a temperature of 250 C to 500 C , its me volume will be?

    asked by Anonymous on May 26, 2010
  70. physics

    what happens when a resistor is used to heat a brass rod and allowed to cool?

    asked by Kearabilwe on August 30, 2011
  71. Science

    How does lustre affect the amount of heat being absorbed by a black can

    asked by Sarah on March 4, 2016
  72. science

    What effects can occur when heat energy is added to a system?

    asked by eaven on November 7, 2018
  73. physics

    what is the heat capacity of a gold ring that has a mass of 7.00g

    asked by bob on March 18, 2016
  74. physics

    why is machinery not 100% efficient Friction, heat loss

    asked by Anonymous on February 21, 2007
  75. Science

    What happens if you submit a sedimentary rock to intense heat and pressure?

    asked by Melissa on January 13, 2008
  76. College Chem

    How much heat (in kJ) is absorbed when 10.0mL of liquid ethanol vaporizes?

    asked by Logan on September 27, 2010
  77. Chemistry

    Are there any sources of heat exchange neglected in a experiment with calorimeter?

    asked by Anonymous on September 25, 2013
  78. science

    What materials will trap heat in the greenhouse and prevent it from escaping?

    asked by T on May 23, 2018
  79. thermodynamics

    equal to 1/4 th of the heat rejected to the sink. the efficiency of the engine is

    asked by Anonymous on February 2, 2013
  80. physics

    what is the heat capacity of a gold ring that has a mass of 5.00g?

    asked by miles on April 4, 2012
  81. chemistry

    the unit in which the quantity of heat energy is usually expressed is called the ?

    asked by alice on October 9, 2007
  82. Chem

    In thermodynaics, what is the relationship between enthalpy (H) and heat (q) - [at constant pressure]?

    asked by xX_Supaman_Xx on January 27, 2008
  83. chemistry

    how much heat (in KJ) is released when 2.50 mols of NaCl is dessolved in water?

    asked by alex on February 17, 2011
  84. Chemistry

    If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed

    asked by Joel on April 9, 2013
  85. Chemistry Help!!

    how many joules of heat are needed to vaporize 50.0 g water at 100.0 C?

    asked by Maci on October 12, 2011
  86. SCIENCE

    HOW DOES THERMAL UNDERWEAR HELP PREVENT LOSS OF BODY HEAT?

    asked by KYLE on February 9, 2008
  87. physics

    How does a vaccum flask minimize heat change with surrounding

    asked by ISOBO Jack on February 27, 2016
  88. 4th grade science

    There are three methods of heat transfer, radiation,covection, and conduction. I need to know an example of each.

    asked by hunter on October 2, 2007
  89. Chemistry

    why is da value of heat of neutralization of NaOH AND HF is higher dan that of its constant value??

    asked by Syed on February 1, 2011
  90. Physics

    Which of the following units can be used to measure heat? Choose all that apply. °C cal K kW kg m2/s2 kg m/s2 °F m/s2 J/s J

    asked by Cameron on October 22, 2018
  91. chemistry

    how many grams of ethylene would have to be burned to produce 450 kJ of heat?

    asked by mandee on November 15, 2009
  92. 7th grade science

    how do you change the question do you want to know about heat transfer into a regular sentence?

    asked by jamzin on November 22, 2009
  93. Chemistry

    How many grams of methanol could be vaporized by the addition of 22.45kJ of heat?

    asked by Luz on March 15, 2013
  94. physical science

    how does a heat pump prove the law of conservation of energy?

    asked by sidney on October 23, 2015
  95. chemistry

    How much heat does calcium oxide produce when dissolved in water?

    asked by Ann on May 17, 2010
  96. Chemistry

    what is the magnitude and sign of the molar heat of vaporization of butane

    asked by Kendra on December 13, 2012
  97. chem

    what is the relationship between the amount of heat produced per mole of reactant?

    asked by sid on January 4, 2012
  98. chemistry

    Determine the heat of combustion of ethanol by using the bond energies

    asked by david drame on April 26, 2012
  99. chem

    what is the relationship between the amount of heat produced per mole of reactant?

    asked by Sid on January 3, 2012
  100. Chemistry

    How can you predict the heat of combustion for a substance with no carbon atoms?

    asked by Jessica on September 13, 2012