1. Chemistry

    Do free electrons appear anywhere in the balanced equation for a redox reaction? a) Yes, free electrons appear in the right part of the equation. b) Yes, free electrons appear in the left part of the equation. c) Yes, free electrons appear in the both parts of the equation. d)...
  2. chemistry. Chl my answers please!

    (1) To make NaTcO4, Tc metal is dissolved in nitric acid to make HTcO4, NO2 and H2O. Then the product HTcO4 is treated with NaOH to make NaTcO4. If you begin with 4.5 mg of Tc metal, how much of NaOH (in grams) is required to convert all of the HTcO4 into NaTcO4? Tc + 7HNO3 = ...
  3. Chem 400

    Direct reaction of solid iodine (I2) and gaseous chlorine (Cl2) produces an iodine chloride,(IxCly), a bright yellow solid. 0.678 g of iodine (I2) is mixed with 0.851 g of chlorine (Cl2). After the elements react, some chlorine is left over along with a single compound that ...
  4. Art answer check

    1. Ann Hamilton's "Indigo Blue" is an example of what kind of art? Feminist Art Action Painting x Installation Art Video Art 2 The events in contemporary Iran give this artist context for films and videos by this artist: Wemda Gu x Shirin Neshat Zaha Hadid El Anatsui 3. . ...
  5. Algebra

    Find the equation of the line through the given pair of points in standard form using only integers. 3) (5, 2) and (-1, 6)
  6. boooring chemistry!!:(

    Why do the halogens easily form ionic and covalent bonds? Can someone explain this to me?! :(
  7. Maths trigonomentry

    3cosx+4sinx=5 what is x is too difficulat form me to solve? Shw working please
  8. Science

    245 million years ago all of the land masses were combined to form....
  9. Chemistry

    If 50 mL of a saturated solution of KClO3 at 55¡ÆC is cooled to 15¡ÆC, calculate the mass of precipitate that will form
  10. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Divide: 3/4 ÷ 3 =
  11. Algebra II

    Write the equation siny=x in the form of an inverse function. Answer: x=Sin^-1y Thanks
  12. science

    What conditions are present in stars that cause hydrogen to form helium? What is this process called?
  13. chemistry

    what mass of water must react with calcium carbide for 3.9g of acetylene gas to form?
  14. math

    write each ratio in simplest form... 224/480 42:68 500 to 125
  15. Humanities

    Sung dialogue in which the singer has accompaniment in the form of light chording is called?
  16. math

    multiply 3 1/6 x 9/11 x 6/17 and write it in its simplest form would that make the answer 513/561?
  17. math

    write 66 2/3% as a fraction simplest form what i did: i put 66 2/3 over 100. i don't know how to divide that
  18. Pre calc

    How do you write a quadratic equation in standard form for a given set of zeros?
  19. biochemistry

    If you make up a solution of 100 mL of 0.1 M HEPES in the basic form, what will be the pH? I have no idea where to even start...
  20. french

    can someone help me write questions or sentences using the infinitive form of : 1. supporter 2. épouser 3. exiger
  21. chemistry

    Which of the following is a possible set of n, l, ml, and ms quantum numbers for the last electron added to form an As3+ ion? (a) 3, 1, -1, ½ (b) 4, 0, 0, -½ (c) 3, 2, 0, ½ (d) 4, 1, -1, ½ (e) 5, 0, 0, ½
  22. algebra 9th grade

    write this in exponential form ^7 square root of b (7 is on outside as an exponent) thanks!
  23. Math

    Let f(x)=sinh^−1(6x). Then f(x) can be written in the simplified form (Ax+B)/(sqrt(Cx^2+D). What are the values of A,B,C and D? Again, please show me how to do this. Thanks
  24. math

    write an expression that shows how to multiply 4 X 362 using place value and expanded form.
  25. Grammar

    You form the possessive of all singular words with apostrophe “s.” A) True B) False Answer is A
  26. MATH

    Determine if the given regular figures form semiregular tessellations. Square, two octagons
  27. Calculus

    If f is an exponential function of the form f(x)=C times a^x with growth factor 5 and f(5)=14. What is f(6)? I know f(6) is 70 but how do you set up the equation to get 70?
  28. math

    In △DEF, DF=16 and m∠F=45. Find the length of a leg. Leave your answer in simplest form.?
  29. Pre-Calc

    What is the standard form of the equation of the parabola that has a vertex at (4, 3) and passes through the point (-4, -2)? Is it f(x) = -5/64(x - 4)^2 + 3?
  30. English

    Researchers are desperately searching for aur for many deadly diseases. What is its passive form??
  31. biology

    maggots form on raw meat , kept open for a few days. give 2 hypothesis for it
  32. maths

    convert each of these decimal into fraction in its simplest form. a)0.179 b)0.125 c)0.003 d)3.8 e)2.5
  33. algebra

    what is the equation of the given line in standard form. use integer coefficients y=-1.7x+8.5 Please explain not understanding
  34. Chemistry

    How many moles of Cacl are needed to be dissolved in .500g of H2O to form a 1.5m solution?
  35. math

    e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form
  36. math-PLEASE HELP ASAP

    Solve using elimination.......answers must be in ordered pair form....(this is the last one I am confused on) 4x-9y=6.5 7y-2x=-4.5
  37. art

    how Picasso used shape or form in the Weeping Woman, and the effect of that usage on the artwork.
  38. math

    Evaluate -x+4y when x=-4/5 and y=1/3. Write your answer as a fraction or mixed number in simplest form.
  39. Algebra (Urgent)

    What is an equation in slope intercept form for the line that passes through the points (1,3) and (3,1)?
  40. world history

    How did movable type help the Chinese to record their knowledge in a permanent form?
  41. Religous studies

    I have to write my statement of belief in the form of a poem, i am 10 and i'm not really sure what i believe in and am struggling with this. Any ideas? Thanks
  42. Math

    Write the equation of a line, in general form, that has a slope of 4/3 and a y-intercept of -5. Help me please...thx
  43. science

    a coomon mineral in solid form Quartz, among thousands of choices. Some are more common than others.
  44. calculus

    Having a really hard time with this! e^8x^2-5 = 14 solve the exponential equation express in exact form. Someone please help!
  45. Algebra

    Write the slope intercept form of the equation of the line described: Through (-1,2), parallel to y = -x - 1 Answer: y = -x + 1
  46. PHI 103

    Putting an argument into premise-conclusion form can make it easier to
  47. Math

    find the equation to the tangent to the curve y = (4x + 3)^5 at the point (-0.5, 1), giving your answer in the form y = mx + c
  48. Math

    Solve the following system of equations. Then, write the final answer in (x, y, z) form. -12x+y-x=-20 -2x-4y+2z=10 x+2y+2z=25
  49. chemistry

    Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
  50. chemistry

    Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
  51. chemistry

    Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
  52. Precalc

    Find the standard form of the equation of the hyperbola with the given characteristics. foci: (±4, 0) asymptotes: y= +/- 3x
  53. Representing numbers

    Write the word form and tell the value of the underlined digit for each number 76239
  54. Chem

    When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed?
  55. math

    A bag of fruit weighs 0.84 kilograms. How can you write 0.84 as a fraction in simplest form?
  56. math

    Evaluate 2x+6y when x=-4/5 and y=1/3. Write your answer as a fraction or mixed number in simplest form.
  57. algebra

    What is an equation of the line in slope intercept form m=2/7andthey-inteceptin,(0,12)answers are y=2/7x+12, y=2/7x-12, y=12 x-2/7, y=12 x+2/7 thank you
  58. Algebra

    Find an equation of the line having the given slope and containing the given point. Express your answer in the form x=a,y=b or y=mx+b; with m=-8,(7,0)? how do I do this?
  59. Math

    rationalize the denominator. Simplify. write final answers is standard form (a+bi). (4-5i)/(2-7i)
  60. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Add: 3/8 + 1/2 + 3/4+=
  61. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Subtract: 3/4 - 3/8 =
  62. Pre-Cal

    Express the function in the form f(x) = (x-k)q(x) + r for the given value of k. f(x) = 15x^4 + 10x^3 - 6x^2 + 14 Value of k = -2/3 I do not understand what I am suppose to do!
  63. math

    Put into slope intercept form: (2,5) m=3 I have a quiz tomorow, and i need to make sure im doing the steps right, so then do you do..: ? 2=15+b -13=b y=3x-13 ???
  64. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Multiply: (2/3) (3/5) =
  65. Math- Algebra 2

    write in vertex form (by completing the square)y=4x2+40x+96
  66. physics

    how can we derive the work-energy theorem form Newton's second law of motion?
  67. Geometry

    Given triangle GHI with G(4, -3), H(-4, 2), and I(2, 4), find the perpendicular bisector of line HI in standard form. Please help? Thanks
  68. college algebra

    find the center and radius of the circle. Write in equation form. (4,8) and (13,8)
  69. pre-calculus

    find the cube roots of -216 answer in polar form
  70. science

    why do beads of water form on a slippery surface,such as a freshly waxed car?
  71. Algebra

    Please help me. Provide steps to arriving at the answer. Write the equation in function form. 6x-3y=12
  72. Chemistry

    How many moles of NH4Cl must be added to 1.5L of 0.2 M solution of NH3 to form a buffer whose PH is 9.(Kb=1.8x10^-5)
  73. chemistry

    the elements of group VII A form ions with a charge of: A) +1 b) -1 c) -2 d) +2 can u please explain too? thankyou
  74. math

    order the numbers form greatest to least 291;911;439;747
  75. please help solve algebra problem

    add, express answer in simplest form 4x/x^2-18x+72 + 4/x-6
  76. physical science

    nitrogen and hydrogen react to form ammonia as follows N2(g)+3H2(g) -2NH3(g)
  77. chemistry

    Determine the volume of H gas needed to react completely with 5.00 L of O to form water ?
  78. Precalculus

    Find the general form of the equation for the line with the given properties Slope=-5/8 ; containing the point (0,4)
  79. algebra 2

    given the zeros, write a polynomial equation in factored form.zero -5,9,12 show all the step please
  80. math

    Find the equation of the line tangent to the curve 2(x^2+y^2)^2=25(x^2+y^2) at a point (3,-1) written in the form y = mx+b
  81. Spanish

    Which form of the verb "estar" would you use with the pronoun "we"? a) esta b) estamos*** c) estais d) estan
  82. Algebra 2

    Write the expression as a complex number in standard form. (5-2i)-2(3+i) Please explain how to do this. I don't know how.
  83. math

    Write the slope-intercept (y = mx + b) form of the equation from the information given. The line goes through the points (-1, -7) and (-8, -2) Can someone please help me?
  84. AP HISTORY

    What was the least common and least sucessful form of slave resistance pre civi war?
  85. Maths

    Find the possible equations of each of the following quadratics if their equation is of the form y = (x-h)^2 and their graph passes through the point: a. (1,16) b (3,9)
  86. Geometry

    In triangle ABC, A = (5, 9), B = (3, 1), and C = (11, 3). Write the equation of the altitude from A to BC. Use point-slope form ... y - y1 = m(x - x1).
  87. Maths B

    Determaine the equation of the line containing each pair of points. Express your answers in the form: i) ax+by+c=0 and ii) y=mx+c: 1,1) (5,5)
  88. Math

    Please help, thank you. Write the logarithmic equation in its equivalent exponential form. log 0.000001 = –6
  89. Algebra 2

    Solve square root of 79-5x =6x+4 (Keep your answers in simplified improper fraction form)
  90. maths

    Write the equations below in the form y = mx + c. State how many solutions each systems of linear equation have. 3x = 6y 2y - 6x + 2 = 0
  91. Math

    a. Express f(x)=x^2 - 6x + 14 in the form f(x)=(x-h)^2 + k, where h and k are to be determined. b.Hence, or otherwise, write down the coordinates of the vertex of the parabola equation y=x^2 - 6x + 14.
  92. math

    a slide moves triangle abc to form a'b'c' what is the proper name of the transformation that formed a'b'c'?
  93. Chemistry

    Calculate the mass of Crystals that will form in 400g of water if the solution is cooled from 55°C to 15°C?
  94. math linear equations

    would the equation in slope-intercept form of the line which passes through 0,6 and 4,3 be y = -3/4x + 6?
  95. Chemistry

    What volume of 0.123 M AgNO3(aq) is needed to form 0.657 g of AgCl(s)? 0.564 mL. 18.6 mL. 37.2 mL. 1.77 L.
  96. Spanish

    Which form of the verb "estar" would you use with the pronoun "we"? a) esta b) estamos*** c) estais d) estan
  97. Social Studies

    What is China's form of currency? a. Yen b. Euro c. Ruble d. Yuan***
  98. Math Help ;)

    So, I've been stuck in these for quite some time.... can someone help me? Which ratios can form a proportion? A) 9/45 , 8/40 B) 8/12 , 12/21 C) 8/12 , 12/15 D) 9/22 , 14/28 I think it might be C but my brain is fried. Thank you so much, Jacob
  99. algebra

    write the equation in logarithm form a) 343=7^3 b) 25-(1/5)-^2 c A=bc Thank you for your help. I have no idea how to do this problem and I am getting stress.
  100. english

    could you mind explaining the grammatical aspect and what tense form would it come under for : The car started
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