CHEMISTRY (WEBWORK)

58,560 results, page 88

chemistry

Calculate the mass of carbon dioxide produced by burning 0.60kg of methane

General chemistry

How much energy is released by the combustion of 1.00 mol of octane, C8H18?

Chemistry

Calculate the solubility of AgCl in the following solution: 100mL of .004 M CaCl2

chemistry

which solution has the lower pH? a)0.1 M HCL or 0.1 M HC2H3O2? b)0.1 M NaOH or 0.1 M NH3? c)0.1 M Na2CO3 or 0.1 M NaCl?

chemistry

in a exothermic reaction temperature changed from 30 to 43, reasons why I got those answers

Chemistry

Is the structure for chlorous acid H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.

Chemistry

Is the structure for chlorous acid H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.

Chemistry

How do valence electrons play a part in the physical or chemical charactersitics of an element?

Chemistry

how many grams of solid iodine are produced by the decompostion of 2.1 g of hydrogen iodide gas?

Chemistry

Hoe much carbon dioxide is produced from 2.0 L of propane combusting at STP?

Chemistry

What happens to the current flow with time in an electrolytic cell ? explain. thank for helping~

Chemistry

What is the trend in atomic size in the series of Group IIA elements Be through Ra?

Chemistry

Is this true or false Both sublimation and melting are considered endothermic processes.

chemistry

what must be done with the radioactive waste materials that result from splitting atoms and how is this a problem?

Chemistry

What is the strongest intermolecular force in a sample of butanoic acid, and why? H H H O . . . .. H .C .C. C .C .O.H . . . H H H Is this structure right?

Chemistry

What is the minimum volume of 6.5M HCl required to completely dissolve 24.0g of magnesium metal?

chemistry

what mass of SO2 is formed upon the complete combustion of 1.59g of methanethiol

Chemistry

Is it appropriate to call a soft drink an aqueous solution? Justify your answer

Chemistry

Write the balance equation and the reaction type when magnesium is added to HCl

chemistry

How many moles of ammonium chloride could be found in 100g of water at 70 degrees celsius?

chemistry

if 4.4 moles of copper metal was deposited from a solution of Cu(NO3)2, how many electrons were involved?

chemistry

if you combine 2 compounds together will you make a mixture? Such as salt and water.

chemistry

What is the molecular geometry for SH2? 1. Bent 2. Trigonal planar 3. Tetrahedral 4. Liner

chemistry

balanced equation: HC2H3O2 + NaOH -> What is the mole ratio of these two substances?

AP Chemistry

The solubility of solid Ce(IO3)3 in a 0.20 M KIO3 solution is 4.4 10-8 mol/L. Calculate Ksp.

chemistry

When 71.43 mL of 0.855 M HNO3 is diluted with 20.57 mL of water, the molarity of the nitric acid becomes

chemistry

Molarity is defined as the number of moles of solute divided by the volume of the solvent

Chemistry

The half life for a first order reaction is know to be 4.5 h. How long will it take for 85% to be decomposed, in h?

Chemistry

The density of an elemental gas is 1.7824 g/L at STP. What is the molar mass of the element?

chemistry II

how do I calculate how many moles of solute particles are in one mole of naphthalene, C10H8?

chemistry

what element is undergoing oxidation in the following reaction Zn(s)+AgNO3(aq) Zn(NO3)2(aq)+2Ag(s)

chemistry

what element is undergoing oxidation in the following reaction Zn(s)+AgNO3(aq) Zn(NO3)2(aq)+2Ag(s)

Chemistry

How much heat energy, in kilojoules, is required to convert 53.0 g of ice at -18.C to water at 25.0 C ?

Chemistry

Use VSEPR theory to predict the bond angles of sulfur hexafluoride.

chemistry

If I measure my big screen TV and get 500.24 centimeters, which numeral is estimated? How many millimeters is it?

college chemistry

What volume would 10.5 g of nitrogen gas, N2 occupy at 200.K and 2.02 atm.

college chemistry

What volume would 10.5 g of nitrogen gas, N2 occupy at 200.K and 2.02 atm.

college chemistry

What volume would 10.5 g of nitrogen gas, N2 occupy at 200.K and 2.02 atm.

Chemistry

If the density of the vapor at 90°C and 759 mmHg is 1.455 g/L, what is the molecular mass of the compound?

chemistry

3.429 X2 (SO4)3 contains 0.12 mol of oxygn tom.what is the atomic wight of x?

chemistry

I need help building a 3d model of the apertame molecule Can you give me the correct angles? Thanks

chemistry

Balance this net ionic equation Mn04-+zn(s)»zn(oH)2 +Mn02(s) in a basic medium

chemistry

Which of the two aqueous solutions has a higher boiling point 0.35mCaCl2 or 0.9m urea?

Chemistry

Two characterstics that lead to an element being classified as a metal. Please help!

Chemistry

Two characterstics that lead to an element being classified as a metal. Please help!

chemistry

What are the the missing reactants for the double-displacement reaction that produces PF5 and AsCl3 ?

chemistry

what mass of sodium chloride can dissolve in 14.8g water at 100 degrees Celsius?

chemistry

What are the materials used to create a free standing atomic model of iodine?

Chemistry/Stoichiometry

How many liters of H2 are needed to produce 2.00g of NH3? N2+3N2 ---> 2NH3

Chemistry

Find the product and list the full balanced equation. CuCl2 + AgNO3 -> ?

chemistry

the order of cation concentration of CuSO4, BaSO4, CaSO4 from highest to lowest.

chemistry

calculate the energy required to heat 1.00L of ice at -50.0C to steam at 180.0C

chemistry

What is the name and chemical balance equation for magnesium metal and nitric acid?

chemistry

i would like to know ten examples of indicators with their pH range and colours. thanks much

chemistry

If 22.40g of potassium react with silver sulfide what mass of each product will form?

General Chemistry

Can a Van Der Waal force change the shape of a molecule?

College Chemistry

Do odd electrons make a weak or strong repulsion axis?

chemistry

how much ice would i have to eat to l lose 10% of my body weight?

chemistry

Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.

chemistry

Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.

Chemistry

What is the empirical formula for a compound which contains 67.1 percent zinc and the rest is oxygen

Chemistry

What is the correct net equation for: LiOH(aq) + HClO(aq) → LiClO(aq) + H2O(l)?

Chemistry

What is the balanced equation for the reaction between sodium tetraborate and sulfuric acid?

chemistry

Can someone answer please Determine the boiling point of water at 698.5 mm Hg?

chemistry

From what acid and what base are the following salts made: KBr, NH4NO3, and BaCl2?

chemistry

the amount of heat when 65g of water at 100c until it cools to 37c

chemistry

will KCl conduct more electricity than AlCl3 because K has less ionization energy than Al?

chemistry

write a balanced chemical reaction representing the combustion of hexane? C6H14

Chemistry

On the basis of MOT, explain why the stability of N2 decreases on ionization but the inverse is true for O2.

chemistry

If you burn 38.9 g of hydrogen and produce 348 g of water, how much oxygen is reacted?

chemistry

If you burn 38.9 g of hydrogen and produce 348 g of water, how much oxygen is reacted?

Chemistry

A sample of 50.0 mL if sulfuric acid that has a density of 1.84 g/mL would have a mass of how many grams?

chemistry

if we combust 4.23 x 10^24 molecules of propane how many grams of carbon dioxide and water you will produce ?

chemistry

What mass of carbon dioxide is produced from the complete combustion of 2.50×10−3 of methane?

Chemistry

How much water, in grams, can be made from 3.59 × 10^24 hydrogen molecules? Answer in units of g

chemistry

how many seconds would it take to go from 0mi/h to 60 mi/h with an average acceleration of 15mi/h squared

Chemistry

If water is synthesized how much hydrogen would be needed to make 10.0 grams?

Chemistry

At constant pressure, which of these systems do work on the surroundings? Check all that apply. 2A (g) + B(s) --> 3C(g) 2A (g) +2B (g) -->5C(g) A(g)+ B(g) --> C(g) A (s) +2B(g)--> C(g)

Chemistry

A student mixes 45.0 ml of .150 M HCL with 30.0 ml of .200 M NaOH. What is the pH of the resulting solution?

Chemistry

How much 0.5 M HCl is needed to neutralize 5.5 kg of ammonia dissolved in 6 gal of water?

chemistry

Convert .25 L of a .025 M solution of NaCL starting with solid NaCI and water

chemistry

Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.80 g of Zn.

chemistry

Calculate the grams of K2CO3 required to prepare 546.0 mL of a 0.789 g/L K+ solution.

chemistry

what volume of butyric acid would be needed to make 25.0mL of a 1.0M solution?

chemistry

what is the vapour pressure in mm of Hg of nickel nitrate solution at 125 degree centigrade

chemistry

Determine the volume of a 0.550M of kmno4 solution required to completely react with 2.70 of zn

chemistry

calculate the theoretical weight of sodium borohydride need to reduce 50 mg of benzil

chemistry

3Ag(s)+4HNO3(aq)-->3AgNO3(aq)+NO(g)+2H2O(l) Write the new ionic equation.

Chemistry

3Ag(s)+4HNO3(aq)-->3AgNO3(aq)+NO(g)+2H2O(l) Write the net ionic equation.

chemistry

An element x has 3 isotopes,a,b,c.a has 5% abundance b,20%,c,75% &a has a mas of 40,b 42,c 45.what is the essntial differnce in the nuclear structure.

lang

A science that looks at atmosphere and the weather. A. Chemistry B. Meteorology C. Geology D. Astronomy d

Chemistry

How do you calculate the mass in kilograms of 3.99 liters of acetic acid. The density of this substance is 1.05 g/mL.

Chemistry 100 Lab

What will be the color of copper II oxide when heated in the presence of hydrogen?

Chemistry

Ba(NO3)2 is added (BaCrO4 (s) is less soluble than BaCr2O7 (S)) provide an explanation Thank You

chemistry

calculate the mass in kilograms of 3.99 liters of acetic acid. the density if 1.05g/ml.

CHEMISTRY

Find the amount of CuSO4.5H2O needed to prepare 500 mL of 0.25 M solution.

chemistry

Calculate the concentration in ppm if 8 grams of CaCl2 is dissolved in 250 ml of water.

Chemistry

Using the "octet rule" write the Lewis formulas for NF3 and NO3-.

Organic Chemistry

Do these two names refer to the same compound: N-butylcyclohexylamine vs N-butylcyclohexanamine?

Chemistry

In basic solution, H2O2 oxidizes Cr+3 to Cro4^-2 and is reduced to OH-. What is the balanced equation?

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100