1. Chemistry

    which element in the first transition series do not exhibit variation of oxidation state and why?
  2. chemistry

    explain how you would convert from number of atoms of a specific element to its mass
  3. science

    how many half-lives have passed if only 1/16 of the original amount of the element remains? a-two b-three c-four d-five
  4. Chemistry

    AP Chem - Which element is oxidized in the following reaction: CuO(s) + H2 (g)  Cu(s) + H2O (l)
  5. chemistry

    I have a balance equation but i need to know how to find the different states of each element. How do I do that? Ca + 2 HNO3 => Ca(NO3)2 + H2
  6. Science

    Use the terms atom and element to explain what makes silver and gold different
  7. Chem

    In the reaction that forms aluminum nitride from its elements, which element is being oxidized?
  8. Chemistry

    How many atoms of each element are present in five formula units of calcium permanganate?
  9. Chemistry

    The only strongly electropositive metal that will not form a saline hydride is what element?
  10. Chemistry

    Which element has no stalbe isotopes: 82Pb, 27Co, 51Sb or 90Th?
  11. Sociology

    What is a key element in democracy? A. Self-determination B. Selfishness C. Violent D. Heredity
  12. Chemistry

    Please explain the acitivty series of metals. How can i determine if one element displaces another?
  13. Science

    what do you round to find the mass number of the most common isotope of the element?
  14. math algebra

    List the following element 1) xuy 2) yut 3) xut 4) ynt
  15. math

    For a fixed element 'a' of a ring R, prove that the set {x exists in R such that ax=0)is a subring of R.
  16. Linear Algebra

    W= [ a , a+b ] (2x2 matrix) [a-b , b ] a, b are element of R Show that W is a Subspace of M22?
  17. Chemistry

    Two hydrides A and B of an element X contain 17.76% and 12.58% by mass of hydrogen. Identify A and B and comment on their structures.
  18. Social studies

    which of the following is not an element of culture? A. language B. customs C. age** D. dress
  19. chemistry

    Identify the element that has a ground state electronic configuration of [Ar]4s23d104p 4
  20. chemistry

    what is the formula of a compuond formed by combining 50g. of element X and 32 g. of oxygen
  21. chemistry

    Explain how you would convert from number of atoms of a specific element to its mass??
  22. Chemistry Help!!

    which element do not combine readily with other elements because they already have eight electrons in their outermost shell?
  23. Science

    Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons? A. 20/15 D B. 15/20 D C. 35/15 D D. 15/35 D C?
  24. chemistry

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

    hund's rule tells us that element 116 will have what paired electrons?
  26. Science

    If you thought you had discovered a new element, how could you get the scientific world to accept your discovery?
  27. chemistry

    calculate the percentages by mass of the component element in sodium trioxonitrate(v)
  28. Chemistry

    If ununseptium (element 117) reacts with oxygen what would be equation of the product? Thanks so much!
  29. Science

    Use the terms atom and element to explain what makes silver and gold different.
  30. science

    use the terms atome and element to xplane what makes silver and gold different
  31. Chemistry

    Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons? A. 20/15 D B. 15/20 D C. 35/15 D D. 15/35 D C?
  32. chemistry

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

    consider a neutral atom with 69 protons and 80 neutrons what is the atomic number of this element
  34. Chemistry

    The following electron configurations correspond to the ground states of certain elements. Name each element. a) [Ar]3d^10 4s^2 4p^4 b) [Ne]3s^2 3p^3 c) [Ar]3d^2 4s^2 d) [Kr]4d^1 5s^2 e) [Xe]4f^13 6s^2
  35. science

    Calculate the mass% of different element present in H2SO4. Also show the solution.
  36. Biology

    why is a radioisotope able to substitute for an ordinary (nonradioisotope) atom of the same element in a molecule?
  37. physical science

    is AL ( aluminium) an element compound formula atom molecule
  38. algebra

    It takes a passenger train 2 hours less time than it takes a freight train to make the trip from Central City to Clear Creek. The passenger train averages 96mi/hr while the freight train averages 64mi/hr. How far is it from Central City to Clear Creek?
  39. art

    Can some one help me with this art question. Not sure what exactly it is asking for. 1) Look at Las Meninas by Diego Velázquez and describe the formal qualities of this work in terms of its organizing space. Do the formal qualities working together create
  40. Maths

    a street map has a scale of 1: 25000 Two streets 7cm apart on the map
  41. capitalization

    which words need to be capitalized? my neighbors across the street have a new car, it's a toyota. ( My, Toyota )
  42. English

    Street food looks good and cheap. ------------ What is the meaning of 'looks good' in the sentence?
  43. Math Please Help Me

    An art teacher has 1 1/2 pounds of red clay and 3/4 pound of yellow clay. The teacher mixes the red clay and yellow clay together. Each student in the class needs 1/8 pound of the clay mixture to finish the assigned art project for the class. How many
  44. math

    An art teacher has 1 1/2 pounds of red clay and 3/4 pound of yellow clay. The teacher mixes the red clay and yellow clay together. Each student in the class needs 1/8 pound of the clay mixture to finish the assigned art project for the class. How many
  45. math

    An art teacher has 1 1/2 pounds of red clay and 3/4 pound of yellow clay. The teacher mixes the red clay and yellow clay together. Each student in the class needs 1/8 pound of the clay mixture to finish the assigned art project for the class. How many
  46. english

    Hello for these questions to change for making the language nonsexist the sentence : The minister joined the couple as man and wife, would it be The minister joined the couple as husband and wife or no change. The second sentence making the language
  47. Statistics

    You have an SRS of size n = 16 from a Normal distribution with standard deviation = 1. You wish to test H_0 :μ = 0 H_a :μ > 0 You decide to reject H_0 if x bar > 0 and to accept H_0 otherwise. a. Find the probability of a Type I error. That is,
  48. English

    Hi, I am trying to analyze this poem. It is called "On watching politicians perform at Martin Luther king's funeral". It is by Etheridge Knight who is a black poet who was active mostly in the 60s and 70s. Here is the poem. Hypocrites shed tears like shiny
  49. Calculus

    Could someone help me setup an equation for this equation? --------------------------------- A city bus system carries 4000 passengers a day throughout a large city. The cost to ride the bus is $1.50/person. The owner realizes that 100 fewer people would
  50. hum

    In this class, we are using the Internet's information dissemination capabilities for distance learning. Give other examples of information exchange using the following modalities and including users of each modality: 1. the Internet 2. an intranet 3. an
  51. math

    I have 2 questions that i need help on, please help! Thank you and God bless you. 1. A shoebox holds a number of disks of the same size. There are 5 red, 6 white, and 7 blue disks. You pick out a disk, record its color, and return it to the box. If you
  52. geometry

    a person is standing 12m away from a street light that is 9m tall. How tall is he if his shadow is 3m long?
  53. Language

    Are the commas in the correct spots? Write me at 57 Bank Street, New York, New York 10014
  54. Science

    suppose that you are walking down the street. Describe the force acting on you, and describe how they change your motion
  55. english

    theday i didnot win a price in drawing competition
  56. Math

    Jordan has $10.00.if each drawing pen costs $1.449,how many can he buy?
  57. math

    Can someone please help me solve this? What are the odds in favor of drawing a spade and a heart?
  58. statistics

    Find the probability of drawing a flush in 5-card poker.
  59. anthropology

    what can be an example of global apartheid? like something recent that has been going on...im kinda drawing a blank =[ thanks
  60. geometry

    In the following drawing, find b if a = 4.5 and c = 10.8. Round your answer to two decimal places.
  61. Math

    With which letter can you make exactly 2 polygons by drawing 2 more line segments?
  62. computer

    how can you use painting and drawing to make the leaners better understand mathematics?
  63. math

    what is the probability of drawing 5 queens from a standard deck of cards?
  64. Drawing

    Inscribe a regular octagon in a circle of diameter 80mm
  65. College Algebra

    Find the probability of drawing two i's in a row without replacement.
  66. algebra and trigonometry

    Where can I find a complete drawing of the unit circle
  67. drawing

    please give me some important tips about decoration of a science chart.
  68. PHYSICS

    Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0 µF.
  69. grammar

    Another activity I enjoy is drawing horses. What is simple subject?
  70. Math

    I have a challenge of drawing as many rectangles as I can but using only 8 squares on a grid that's only 4 across and 4 up. I can only draw two....
  71. Math

    I have a challenge of drawing as many rectangles as I can but using only 8 squares on a grid that's only 4 across and 4 up. I can only draw two....
  72. Probability With Cards

    When drawing a card from a deck, the P(king and hearts) is:
  73. Chemistry

    Use the drawing of MO energy diagram for CO to predict the bond order.
  74. math

    The length of a drawing of a tool is 3/8 of the length of the actual tool. If the length of the drawing of the tool is 6 inches, what is the length,in inches ofthe actual tool?
  75. English

    I forgot to include the following sentences. Can you please have a look at them, too? 1)Their voyage starts from (better: begins at Tabard Inn) Tabard Inn in London, that is connected to (with?) pleasure and ends in Canterbury, a symbol of the celestial
  76. probability

    The lifetime of a type-A bulb is exponentially distributed with parameter λ. The lifetime of a type-B bulb is exponentially distributed with parameter μ, where μ>λ>0. You have a box full of lightbulbs of the same type, and you
  77. Physics

    Why is it necessary to collimate the light source before using the prism to disperse the light? A. If white light enters the prism with different angles, some of the blue light will exit the prism with the same angle as the orange light. B. If white light
  78. Stats

    Urn 1 contains 3 green balls and 5 white balls, and Urn 2 contains 2 green balls and 4 white balls. A ball is drawn from each urn. What is the probability that both balls are green?
  79. Art

    I need some good Menu titles for my menu art project. Please help me think of some good titles for menu's!!
  80. socials

    what life like for many teens in post war period? present answer under following headings: A) independence B) styles C) music D) teens as "target market" Independence for this i think they only have ample leisure time, more money to spend from part-time
  81. chemistry

    Which of these elements has the electonic configuration of The energy absorbed or released when an electron is added to a gaseous atom is known as Which of these elements behave partly as an alkaline metal as well as a halogen element? Hydrogen can be
  82. geometry

    Alice is making the profile of a face. She is also making an exact replica of a circle with a radius of eight inches. Which statement is correct about the profile and the replica?Answer A: The profile is made by sketching and the circle is made by drawing.
  83. science(chem)

    I'm totally confused with this topic..not sure if it's science or whatnot.. Pyrite/ fool's gold yep then comes the weirdness...I saw some jewlery sold as having "marcasite". But I do know from somewhere which I can't remember anymore that marcasite is
  84. English (Checking)

    (1-4) Choose the sentence that contains an error in the use of commas. A tiny white diamond sparkled on her finger. <----------- Haley’s speech was interesting and a pleasantly surprising hit. His long, red beard fascinated the little boy. One
  85. American Government

    Please check my answers 1. Which of the following make up the structure of nearly all county governments? (I need to choose 4 answers) A. Appointed bureaucrats B. Boards or commissions C. A county judge D. Elected officials E. A governing body F. A justice
  86. Language art

    When do we use some and do we use any. What is the use of some and any?
  87. art

    who is picasso?
  88. Spanish

    How would I say "He looks at art." Thank you
  89. art

    Ms sue do you know
  90. Art... Light

    You are right!
  91. art

    What does Renaissance mean?
  92. art

    where does banksy come from
  93. art

    what is something that stands for something else.
  94. art

    What is frieze?
  95. art

    what is scgraffito?
  96. Art

    Where does clay come from?
  97. art

    what is a motief
  98. English

    Thank you very much for your corrections. Here are some more sentences for you to check. 1)The mirror claims to have no preconception since it projects whatever it sees umisted by love or dislike.It reflects a woman who is becoming (growing, getting old).
  99. Art

    What technology was the key to the efficiency of Gutenberg's printing press? Strong roller moveable type** specialized ink strong paper Prior to the invention of the printing press, what groups of individuals had the most access to books? peasants and
  100. English

    Thank you very much. Here are some more sentences I'm not sure of. 1) DNA can’t be changed since each (every also possible) person/each of us/ has a different DNA (?). 2) Using (by using) this method forensic artists can convict thousands of criminals