1. Math

    Simplify by removing factors of 1 9w-36/4-w What is the simplified form?
  2. Algebra

    Evaluate in exponential form: 1. 4•4•4•4•4 my answer: 1024
  3. Math

    Find the difference. Write the simplest form. 6 7/8 - 4 3/8 = 4 2/3 - 3 1/3 = 6 4/5 - 3 3/5 = 73/4 - 2 1/4 =
  4. trig

    2sin(3x-3.14)-1 find the inverse form of this equation
  5. mathematicas

    how do you write the matrix: 1 2 -1 | 3 7 -1 0 | 2 3 2 1 | -1 in row echelon form?
  6. calc

    Convert theta= 225° to rectangular form.
  7. Math help

    I need to graph the line y=-4x-3 using the slope and y intercept form how do i do this
  8. math

    unit rate in fraction form:2.40 per dozen
  9. Math

    Let p(x)=x^3+4x^2+x-6. Find a polynomial g(x) can be (remainder) r, such that p(x) can be expressed in the form p(x)=(x-2)g(x)+r
  10. civics

    What three rivers meet together and form the largest waterway??
  11. math

    write as a single fraction the simplest form: 3/x + 4/x+1
  12. Algebra

    Write the expression 3X^12+20X^6+6 in quadratic form.???
  13. math

    what are the step in changing this equation to factored form? y= 1/3 x^2 - 7/3x = 8/3
  14. math

    What is 905,000,800 in expanded form?
  15. Science

    How does a body fossil form? Is it just bones and teeth?
  16. science

    why would droplets of water form on the outside of a glass cup?
  17. Language

    What is the longer form for this clipped word" caf "?Thank u
  18. Maths

    Solve for x,leave your answer in surd form. 2/x+2 + 3/x+1=5
  19. math

    if x A y means x + (X+1) + (x+2) + (x+3) +..., y times express 12 A 3 in simplest form
  20. math

    how do you put 2√45 in simplest radical form?
  21. Pre-calculus

    *polynomial in standard form 1)5/12+7/18=5/6 2) 3x/(x+1)-1/(x)=______/x^2-1x
  22. medical record

    deficiency form is compiled as a consequence of
  23. Math

    Find 1/8 of 12. Express the answer in simplest form? 1/8 - 12 = 95/8=11/7/8
  24. algebra2

    simplify the following quotient of complex numbers into the form of a+bi -9+8i/1+2i
  25. algebra

    How do I writeeach decimal as a fraction in simplest form?
  26. Algebra 2

    (4-3/x^4)/(5+2/x3) Simpify, Leave in factored and reduced form.
  27. algebra

    How do you write the 3rd root of 88 in simplest form?
  28. MATH

    how do you put the points (-3,8) and (5,-7) into an equation in standard form?
  29. arithmetic

    Write 0.125 as a fraction in simplest form
  30. Calculus

    For f(x)=(1-x)/(1+x) and g(x)=x/(1-x) , find the simplified form for f [g(x)] and state the domain
  31. math

    whats 2000 3000 and 8 in standard form?
  32. Math

    How do you write an equation with two fractions into standard form? (2/5)x + (1/3)y - 2=0
  33. science

    Explain why carbon can form so many organic compounds?
  34. science

    In what form are most elements (in the periodic table) in nature? What does this mean?
  35. math

    lines that form right angle when they meet are called
  36. world history

    Why did European nations form alliances?
  37. math

    what is two hundred sixteen tenthousandths look like in expandses form
  38. math

    convert to polar form: 1) x^2-y^2=4 (You may leave your answer for this one as r2 =) 2) x^2+(y-1)^2=1
  39. math

    write the sum of 6 2/3 plus 4 1/6 in simplest form the addi
  40. Pre-Calculus

    Convert from standard to vertex form: (x+5)(x+4) x^2+ 9x + 20 (x+3)^2 + 20 - 9 (x+3)^2 + 11 <------
  41. math

    simplest form of the ratio of rs20 to 50ps
  42. Math

    What times on a clock form an acute angle.. 2:00 6:40 1:30 12:50?
  43. math,

    how do i answer 102 over 14 in simplest form and ratios
  44. Math algebra

    Given 3x = 2y = 6z express 36 in index form in term of x,y and z
  45. Math

    The roots of the equation 4x^2+4x-5 = 0 can be written in the form x = -1+-*SqrtA/2 The value of A is, how exactly do I do this?
  46. math

    Find 1/8 of 12. Express your answer in simplest form.
  47. Pre-Calculus

    Convert the equation y=5 to polar form.
  48. science

    what kinds of atoms form the molecules for each element...please help me
  49. Math

    finding a equation in slope-intercept form. Through (-9, 2.5) and (-5, 4.5)
  50. chem AP

    does CrCl3 form an acidic solution in water?
  51. advance algebra

    y=2x squared -8x+7 what is this equation in vertex form?
  52. science

    write down the wave equation in symbol form?
  53. Geometry

    Two opposite rays ________ form a line
  54. Maath

    How do you write these two equations in slope intercept form? x-5y-10=0 5x+2y+10=0
  55. math

    Give the component form of the resultant vector in the following. u = (10, 5) -3u = ?
  56. 8th grade

    what is 117 put in simplest form
  57. Chemistry

    What precipitates form when CuSO4 and H3PO4 added together?
  58. Math

    What is 2.48 expressed as the quotient of two integers in simplest form?
  59. algebra

    What are the three ways to put numbers in expanded form?
  60. math

    How can find weak form to d^4u/dx^4+du/dx=f (x) By using finite element
  61. Chemistry

    1. Molarity is to moles of solute over liters of solution as molality is to A. molar concentration over molal concentration. B. moles of solute over kilograms of solvent. C. molal concentration over molar concentration. D. moles of solute over moles of
  62. Chemistry

    Given 2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide? How do I find heat of formation from standard enthalpy change? I know how to do it when I'm given enthalpy, but they aren't
  63. Chemistry

    The question is with a lab that I have already done. Here are my numbers moles of malachite in 1g 221.12 moles of CuO produced 141.57 ratio of moles of CuO produced per moles of malachite decomposed 79.55 Use the mole ratio of CuO produced per mole of
  64. Chemistry

    How can you increase the concentration of the product (s) in each of these reactions by varying the temperature and pressure (caused by volume change)? 4NH3 + 5O2 <=> 4NO + H2O Delta H = -903.75 kJ Br2 + Cl <=> 2BrCl Delta H = 14.64 kJ Please
  65. Chemistry

    Combustion of natural gas (primarily methane) occurs in most household heaters. The heat given off in this reaction is used to raise the temperature of the air in the house. Assuming that all the energy given off in the reaction goes to heating up only the
  66. chem

    I have to balance an equation and I had to make the equation from an experiment we did. So far, my equation looks like this and I know what I have is correct: Cu(NO3)2+H20+NaOH----->Cu(OH)2 I think I probably need an N or a Na on the right side. What do
  67. Chem.....

    Methanol, CH3OH, is produced on an industrial scale from carbon monoxide and hydrogen. At the temperatures used, gaseous methanol is formed according to the following thermochemical equation: CO(g)+ 2H2(g) <---> CH3OH(g) H = -90Kj 1. State Le
  68. Chemistry Problem

    A student proposes to use visible spectroscopy to measure the kinetics of the permanganate/oxalic acid reaction. The initial permanganate solution was very dark. For a 1 cm sample cell, the absorbance A = 2,500[MnO4]. As a practical rule of thumb, Beer's
  69. Chemistry

    Help with lab report Need Help finishing my lab report.KNOWN VALUES ARE V OF HCL=50ML,M=2.188.V OF NAOH=55.3ML,M=2.088.INTIAL TEMP FOR HCL=22.5C,NAOH IS 23C.this is for part A: Mass of final NACL solution assuming that the density of a 1 M Nacl solution is
  70. Mathematics

    Can someone check my answers? 1. For the data in the table, does y vary directly with X? If it does write an equation for the direct variation.(X,y) (8,11) (16,22) (24,33) Yes y=2.75x Yes y=0.6875x*** Yes y=1.375x No y does not vary directly with X ** (For
  71. physical science

    true /false for every action, there is an equal and opposite reaction is best defined as Newton's Third Law
  72. chem

    How many grams of NH3 are required to make 52.7g H2O in the following reaction : 4NH3+6NO->5N2+6H2O
  73. chemistry

    calculate the number of grams of co2 that can be absorbed by complete reaction with a solution that contains 5.00 g of sodium hydroxide
  74. Chemistry

    Identify the acid or base behavior of each substance in this reaction: H2PO4 + H2O <----> H3O+ + HPO4-
  75. Chemistry

    What mass of calcium carbonate reaction with hydrochloric acid yields 44L of the gas at 27 ° C and 1520 mm Hg?
  76. Chemistry

    Formic acid is only readily soluble in water and in both 0.6 M NaHCO3 and 2.5 M NaOH. give a brief explanation of the reaction for each
  77. chem

    Please explain: 1) if MnO2 when in a fast reaction with H2O2 appear in balanced equation and 2)purpose of manganese dioxide. Thanks
  78. chemistry

    what is the volume in liters in H2gas produced at 24 degree celsius and 835 mmhg from the reaction of 12g of many thanks
  79. Chemistry 12

    If two students compared their instantaneous reaction rates, would you expect their results to be the same? Explain (Hint: Think of tangent.)
  80. chemistry

    Ca(s) + Br2(l) --> CaBr2 is synthesis my teacher also said that the cause of the reaction is stable electron configuration is that the same thing as the electrolytes one
  81. Chemistry

    Write an equilibrium reaction equation for each of the following buffer mixtures: a)NH3(aq) and NH4Cl(aq) b)HC7H5O2(aq) and NaC7H5O2(aq)
  82. chemistry

    when you are given two half reactions and you are told to calculate net E^O, would you find the voltage for each reaction and subtract the two to get the answer?
  83. Chemistry

    Balance the following equation for a half reaction that occurs in acidic solution. Use e– as the symbol for an electron. Mo^3+ -> MoO2^2+
  84. Chemistry

    Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!
  85. chemistry

    explain inside a flashbulb are the 2 reactants necessary for a violent reaction that produce light yet they don't react..
  86. Chemistry

    Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!
  87. chemistry

    4NH3(g)+5O2(g) yield 4NO(g)+6H2O(g) Deduce the equilibrium constant expression for the reaction.
  88. Body Systems/Terminology

    The most serious type of allergic reaction is A. atrial fibrilation B. psoriasis C. anaphylaxis D. lupus
  89. chemistry

    for a reversible reaction if the concentration of reactant are doubled aad a definate tempreture then equilibrium constant will
  90. Chemistry

    In the first order, reaction A yields products, A=0.400M initially and 0.250M after 15.0 min. What is the value of the rate constant, k?
  91. Chemistry

    What mass of glucose can be produced from a photosynthesis reaction that occurs using 21.2 mol CO2? Answer in units of g
  92. AP Chemistry

    For the reaction 2C6H6+15O2 =12CO2+6H2O, what is the maximum amount of CO2 which could be formed from 5.12 g of C6H6 and 12.28 g of O2?
  93. Chemistry

    A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ).
  94. ap chemistry

    what is the galvanic cell for the redox reaction between sodium dichromate and mercury(I) nitrate in an acidic solution.
  95. 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.
  96. chemistry

    Determine how many milliliters of 0.255 M HClO4 will be required to neutralize 48.56 g Ca(OH)2 according to the reaction: 2HClO4(aq)+Ca(OH)2(s)=CA(ClO4)2(aq)+2H2O(l)
  97. chemistry

    Which of the following is true for the gas phase reaction shown below? 4NH3(g) + 5O2(g) ¨ 4NO(g) + 6H2O(g), ƒ¢H = -0.905 kJ
  98. chemistry

    what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?
  99. AP Chem

    Lead metal is added to a solution of hydrochloric acid. What would be the theoretical cell potential, E°, for the reaction?
  100. Chemistry 1002

    Calculate the standard entropy change for the following reaction at 25 °C. 2 Al (s) + 3 ZnO (s) --> Al2O3 (s) + Zn (s) answer is in J/K mol