1. chemistry

    I did a lab using an electrochemical cell to establish a relationship between cell potential and concentration. I derived two equations from lines of best fit. One is Cell potential of Ag vs. Cu Concentration: y = -0.04520x+0.5515. The other is cell

    asked by Morgan on November 11, 2010
  2. ChemISTRY (WEBWORK)

    A student measures the potential for cells containing A+B+and C+ ions and their metals and records his data in the table below: ............. Overall Reaction ................Potential (V) Cell#1'''''''A(s) A+(aq) B+(aq) B(s)''''''''''''0.90

    asked by laila on July 14, 2010
  3. science

    My cell phone has an antenna about 10.00cm long. If this is one quarter of the wavelength of the radiation, at what frequency in Megahertz does it operate? Note that cell phones, like radio, transmit sounds via electromagnetic waves which travel at the

    asked by Frank on February 27, 2012
  4. CHEMISTRY

    Enter part(a), (c) with 2 siginificant digits and part(b) with 3 siginificant digits. Enter scientific notation as 1.23E4. (a) What is Ecell if the unknown solution in the half-cell on the left has pH = 4.94? ____________ (b) What is Ecell if the unknown

    asked by sabrina:yes i couldn't post the cell diagram H+ on December 1, 2012
  5. VB

    I am new here; say to everyone first. Here is the a question for coding list box; it has two part: first part: Create a project that stores personal information for a little electronic "black book"; the fields in the file should include name, phone number,

    asked by austin on November 16, 2011
  6. biology

    Organisms must be able to adapt to a changing external and internal environment. An organism's ability to maintain a stable internal environment is known as homeostasis. How does a cell's membrane help an organism maintain homeostasis? A. Cell membranes

    asked by Monique on March 22, 2012
  7. Physics

    Bob and Bob Jr. stand at open doorways at opposite ends of an airplane hangar 25 m long. Anna owns a spaceship, 40 m long as it sits on the runway. Anna takes off in her spaceship, then swoops through the hangar at constant velocity. At precisely time zero

    asked by Katie on January 30, 2013
  8. chemistry

    Calculate the standard cell potential for each of the electrochemical cells? 2Ag+(aq)+Pb(s)→2Ag(s)+Pb2+(aq) E∘cell......V? 2ClO2(g)+2I−(aq)→2ClO−2(aq)+I2(s) E∘cell......V? O2(g)+4H+(aq)+2Zn(s)→2H2O(l)+2Zn2+(aq) E∘cell......V?

    asked by John on April 12, 2014
  9. physics

    Given that the electric potential is 7.0×10^−2 V higher outside the cell than inside the cell, and that the cell membrane is 0.10 thick, calculate the work that must be done (in joules) to move one sodium ion from inside the cell to outside.

    asked by nikki on September 6, 2011
  10. Science

    What is the function of a cell wall? 1.to protect and sopport the cell****** 2.To perform different functions I’m each cell 3.To prevent water from passing through the cel 4.to prevent oxygen from entering the cell

    asked by Annie:~) on October 22, 2017
  11. science

    When a beta particle strikes a living cell, __________? A. the beta bounces off B. the cell is not affected C. the cell may cease to function D. it causes the cell to split E. a chain reaction occurs c

    asked by pam on September 13, 2010
  12. science

    When a beta particle strikes a living cell, __________? A. the beta bounces off B. the cell is not affected C. the cell may cease to function D. it causes the cell to split E. a chain reaction occurs c

    asked by pam on September 12, 2010
  13. Child Care Management

    I have a questions that I have answered If some one could just check it Thanks. Neuron development and elaboration, which occurs between birth and age 10, is prompted by A.aural prompts from the family,school, and enviroment. B.physical movement on the

    asked by Barb on March 11, 2010
  14. ARTS

    I LIVE IN WATER IF YOU'LL CUT MY HEART I AM AT YOUR DOOR IF YOU CUT MY TAIL I A FRUIT KNOW IF YOU'LL CUT BITH MY HANDS AND TAIL I AM WITH YOU WHO AM I?

    asked by BILAL on March 23, 2009
  15. physics

    suppose that the two person,each of mass 100kg are 3meter a part in outer space.what is the magnitude of the gravitational

    asked by abdu on October 18, 2015
  16. Chemsitry

    What is the purpose of cell matching? (1 mark) I've been researching for quite a long time now. This question relates to using spectrometry. Can anyone help me? Thanks! I let this question go yesterday because I connected it with cells is biology. On

    asked by Eunice on February 12, 2007
  17. spermatogenesis

    can you tell me if this is right, I think it is the third choice. thanks the question is what is true of spermatogenesis Sperm production occurs several degrees above body temperature. The sperm cell consists of an acrosomal unit, which carries enzymes to

    asked by shellie on October 4, 2006
  18. chemistry

    A certain voltaic cell has a standard cell voltage of 1.22 V, and 3 electrons are transferred in the overall cell reaction. What is the value of the thermodynamic equilibrium constant for this cell reaction at 298K?

    asked by will on March 15, 2011
  19. english

    Use a comma to separate the "wagging tail" from the rest of the sentence. ("Wagging Tail" is not an official grammatical term, but an informal one to describe the variety of "appendenges" at the ends of sentences. These may include phrases, parenthetical

    asked by mia on December 14, 2009
  20. science... PLEASE HELP!

    The problem says "during which stage of the cell cycle does the cell membrane pinch the cell in two?" I said the cytokinesis stage is when the cell membrane pinches the cell in two. Am I correct? If not, please help!

    asked by jeffery on March 6, 2014
  21. Math

    Can I get some help? 1. If v = (-5, -3), -5 ||v||^2 2. For the following vector v, find ||u||, the unit vector with the same direction angle as v. V = -25j Does u = -j? 3. True or False: To graphically add two vectors, V+w, using the tip-to-tail method,

    asked by mysterychicken on June 9, 2013
  22. Functions/Logarithims

    Energy is needed to transport a substance from outside a living cell to inside the cell. This energy is measured in kilo calories per gram molecule, and is given by E = 1.4 log (C1) / (C2 where C1 represents the concentration of the substance outside the

    asked by Steph on March 9, 2012
  23. Biology

    Multicellular organisms use a variety of communication methods to coordinate cell function. Choose ONE of the following examples below and describe the cell-to-cell communication that occurs, and then describe the types of responses that result from this

    asked by nan on March 10, 2016
  24. Biology

    Multicellular organisms use a variety of communication methods to coordinate cell function. Choose ONE of the following examples below and describe the cell-to-cell communication that occurs, and then describe the types of responses that result from this

    asked by nan on March 4, 2016
  25. Science

    I need some ideas for a science project. I need to find a picture of an everyday object which has a similar job or function as that cell part. For example, the nucleus is like a brain. My list includes lysosome, golgi body, cell membrane nucleolus,

    asked by Mary on October 3, 2007
  26. Stat BHS 201

    find the z- score location of a vertical line that spearates a normal distribution as described in each of the following. a. 20% in the tail on the left b 40% in the tail on the right c 75% in the body on the left d. 99% in the body on the right

    asked by jackie on October 20, 2010
  27. Chemistry

    Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.

    asked by John on April 12, 2014
  28. Chemistry

    Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.

    asked by John on April 12, 2014
  29. biology

    I need help on the following: Imagine that a motor unit, with its nerve intact, is placed in a solution that is calcium-free (but has the proper ionic strength – don’t worry how). Further imagine that the ends of the muscle fibers in the motor unit are

    asked by jack on February 13, 2015
  30. Math

    The average number of new virus particles (virions) produced by a virally-infected cell during its lifetime is called the burst size. We will call the burst size N. Under reasonable assumptions, N can be approximated by N = p/u(p) where p is the rate of

    asked by clam on October 19, 2011
  31. biology/chemistry

    Please help i am on a dead line and am stuck on this question, Gametes produced in the process of meiosis in humans (chromosome 4)has a long and short arm the short arm has the gene for Huntington's (H) attached and the long arm the gene for Red hair (R) i

    asked by charlie on April 10, 2007
  32. Chemistry

    what is the charge on a typical ion for group 1A? how can i figure out the answear to a question like this.. then group 7A,6A,2A Group 1A has one electron in the outer orbit, it is lost on ionization, and the charge on the metal ion is +1. Group 7a has

    asked by Bryan on January 2, 2007
  33. Chemistry

    Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two

    asked by TP on May 12, 2014
  34. statistics

    Given a test statistic of z= 1.50, the p-value for a right-tail (upper tail) test is approximately

    asked by julie on October 5, 2010
  35. SCIENCE

    The organization of a cell could be compared to a small city. All of the organelles inside of the cell have a specific purpose that helps the cell to function properly. Which BEST represents the function of the cell wall? A) Policeman B) Sanitation worker

    asked by PLZ HELP on September 7, 2017
  36. health and P.E.

    Why is fiber necessary for proper functioning of the digestive system? A:It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. B:It helps proper functioning of the digestive system and prevents constipation. C:It is

    asked by Jaden on January 6, 2017
  37. Chemistry

    Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Zn2 ] = 0.842 M and [Ni2 ] = 0.0100 M. Standard reduction potentials can be found here. reaction: Zn(s)+Ni^2+(aq)--->Zn^2+(aq)+Ni(s) standard reduction Zn: -.76

    asked by Sophie on May 5, 2014
  38. computer

    If you want to multiply the contents of each of the cells in column C by the tax rate that appears in cell A24, use a/an A. relative cell reference. C. filter. B. absolute cell reference. D. 3-D cell reference.

    asked by eleni on October 29, 2009
  39. Biology

    9. A molecule shaped like a spiral staircase (double helix) is a typical of a. deoxyribonucleic acid b. ribonucleic acid c. carbohydrates d. both a and b D 14. Surface area is an important factor in limiting growth cell because a. the cell may become too

    asked by mysterychicken on January 27, 2010
  40. ap bio

    15. The threshold potential is of great significance in the physiology of neurons because if the threshold potential is not reached, __________. A.the neuron cannot regain its resting potential B.the action potential will be "inversed," with a flux of

    asked by carol on November 6, 2008
  41. chemistry,Ksp

    Ksp The solutions at the two Pb electrodes of a concentration cell were prepared as follows: Cell A: A mixture of 1.00 mL of 0.0500 M Pb(NO3)2 with 4.00 mL of 0.0500 M KX (the soluble potassium salt of an unspecified monovalent ion X-). Some PbX2(s)

    asked by Mahtab on April 4, 2012
  42. Chemistry

    I'm having trouble with the following question, any help would be greatly appreciated. A voltaic cell consists of a Zn/Zn^2+ half-cell and a Ni/Ni^2+ half-cell at 25 C . The initial concentrations of Ni^2+ and Zn^2+ are 1.30 M and 0.100 M , respectively.

    asked by Rick on April 17, 2011
  43. Math

    A fair coin is tossed six times. Find the probability of getting head, head, head, head, tail, tail in that order

    asked by Grace on September 12, 2016
  44. physics

    Although these quantities vary from one type of cell to another, a cell can be 2.10 ìm in diameter with a cell wall 50.3nm thick. If the density (mass divided by volume) of the wall material is the same as that of pure water, what is the mass (in mg) of

    asked by Toks on January 13, 2010
  45. physics

    Please help I cant breath with this qn, due today exam pending, thanks for taking your time to help. The human outer ear contains a more-or-less cylindrical cavity called the auditory canal that behaves like a resonant tube to aid in the hearing process.

    asked by chiongo on November 3, 2014
  46. Physics

    In a typical living cell, the electric potential inside the cell is 0.070 V lower than the electric potential outside the cell. The thickness of the cell membrane is 0.10µm. What is the magnitude and direction of the electric field (E) within the cell

    asked by Nina on March 31, 2013
  47. intro to physics

    an athlete executing a long jump leaves the ground at a 28 degree angle and lands 7.6 m away. part a )what was the takeoff speed ? part b) if this speed were increased by just 8.0% , how much longer would the jump be ? for part a) i got roughly 9.48 but i

    asked by emilia on April 22, 2012
  48. psychology

    Cannon-Bard view emotion as more than a response to physiological arousal. They suggest that... 1) the hippocampus and the spinal nerve produce emotion 2) both the cortex and the autonomic nervous system respond to the stimulus 3) emotion is the work of

    asked by nicky on December 20, 2009
  49. physics

    An athlete executing a long jump leaves the ground at a 28.0 angle and lands 7.60m away. part a)What was the takeoff speed? part b) If this speed were increased by just 8.0 % , how much longer would the jump be? i got for part a)9.48 m/s but i need help

    asked by emily on April 22, 2012
  50. physics. HELP PLEASE !

    An athlete executing a long jump leaves the ground at a 28.0 angle and lands 7.60m away. part a)What was the takeoff speed? part b) If this speed were increased by just 8.0 % , how much longer would the jump be? i got for part a)9.48 m/s but i need help

    asked by emily on April 22, 2012
  51. Science

    How many cell divisions would it take to produce at least 1,000 cells from one cell? (When one cell splits in half during cell division, the result is two new cells. Each of those cells can divide into two more and so on.) Answer (256?)

    asked by Anonymous on April 21, 2014
  52. Stats

    Suppose the number of cell phones in a household has a binomial distribution with parameters n = 17, and p = 40 %. Find the probability of a household having (Keep at least 4 digits) (a) 11 or 13 cell phones? (b) 11 or fewer cell phones ? (c) 14 or more

    asked by terry on July 6, 2017
  53. biology

    Please help me answer these questions: 1. Advantage and disadvantage of cell division on the economy of animal? 2. In what part of plant is most likely to find mitosis? 3. Where to look to find mitosis in animal? 4. During what stage of the cell are the

    asked by klar maesen on July 8, 2007
  54. psychology

    Cannon-Bard view emotion as more than a response to physiological arousal. They suggest that... 1) the hippocampus and the spinal nerve produce emotion 2) both the cortex and the autonomic nervous system respond to the stimulus 3) emotion is the work of

    asked by vedrana on October 9, 2011
  55. physics

    You have two cylindrical solenoids, one inside the other, with the two cylinders concentric. The outer solenoid has length â„“outer = 400 mm, radius Router = 50 mm, and Nouter = 2000 windings. The inner solenoid has length â„“inner = 40 mm,

    asked by Anonymous on October 12, 2017
  56. chemistry

    The electrochemical cell described by the cell notation has a standard cell potential of -0.35 V. Calculate the Wmax (kJ) the cell has done if 1893.5 g of MnO42-(aq) (Molar Mass - 118.94 g/mol) forms. Round your answer to 3 significant figures. Pt(s) |

    asked by eng on June 4, 2010
  57. Physics

    The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane. The thickness of the membrane is 0.000000008 m. What is the

    asked by Lena on April 20, 2014
  58. Math

    While cleaning her dorm room, Monica mistakenly pushed three coins off the desk. When they land on the chair below, find the odds (a) in favor of getting exactly three heads (b) in favor of getting exactly three tails (c) against getting exactly two heads

    asked by Shelagh on June 18, 2014
  59. health

    What is the gap between the axon and the dendrite called

    asked by rich on June 3, 2009
  60. statistics

    (population) A normal distribution has a mean of 80 and a std dev of 20. For each of the following scores, indicate wheter the tail of the distribution is located to the right or left of the score, and find the proportion of the distribution located in the

    asked by Shane on February 8, 2008
  61. Biology

    32. To function properly, a neuron must maintain a a. membrane potential b. neurotransmitter c. negative charge on the inside d. positive charge on the inside I'm stuck between C and D... 34. Hormones are essential to maintaining homeostasis mainly because

    asked by mysterychicken on March 22, 2010
  62. Biology

    32. To function properly, a neuron must maintain a a. membrane potential b. neurotransmitter c. negative charge on the inside d. positive charge on the inside I'm stuck between C and D... 34. Hormones are essential to maintaining homeostasis mainly because

    asked by mysterychicken on March 22, 2010
  63. Math

    Mitosis is a process of cell reproduction in which one cell divides into two identical cells. A bacterium called E. coli often causes serious food poisoning. It can reproduce itself in 15 minutes. a) Starting with one bacterium, make a table with time in

    asked by RS on April 28, 2015
  64. Chemistry

    Constants The following values may be useful when solving this tutorial. Constant Value E∘Cu 0.337 V E∘Fe -0.440 V R 8.314 J⋅mol−1⋅K−1 F 96,485 C/mol T 298 K Part A In the activity, click on the E∘cell and Keq quantities to observe how they

    asked by Jasper on March 28, 2018
  65. Physics

    A capacitor of capacity C is charged fully by a cell of emf V/2 and then it is disconnected and again connected with a cell of emf V (+ve plate of capacitor with +ve terminal of cell and vice versa). The heat developed in connecting wire during charging by

    asked by Clandestine on April 18, 2013
  66. science

    What energy changes occur in an electrochemical cell when electric current flows from it? This is what I put down but I am not sure if it is right... In a primary cell, chemical reactions use up some of the materials in the cell as electrons flow from it.

    asked by helpmeplease on December 11, 2007
  67. Physics

    A capacitor of capacity C is charged fully by a cell of emf V/2 and then it is disconnected and again connected with a cell of emf V (+ve plate of capacitor with +ve terminal of cell and vice versa). The heat developed in connecting wire during charging by

    asked by Clandestine on April 20, 2013
  68. ap chemistry

    A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr 3+ and a gold electrode in a solution that is 1.0 M in Au 3+ . a) Provide the half cell reactions for each of the electrodes. b) Which is the anode and which is the cathode? How did you

    asked by megan on April 17, 2012
  69. Statistics

    A manufacturer makes ball bearings that are supposed to have a mean weight of 30g. A retailer suspects that the mean weight is actually less than 30 g. The mean weight for a random sample of 16 ball bearings is 28.8 g with a standard deviation of 3.9 g At

    asked by Leslie667 on April 22, 2015
  70. Chemistry

    A galvanic cell is made with aluminum and zinc electrodes. (For Ag^+(aq)+(e^-)--->Ag(s), E=0.80 V and for Cu^2+(aq)+(2e^-)--->Cu(aq), E=0.34 V) Write the standard cell notation for this cell. Wouldn't it be silly to use the potentials for copper and silver

    asked by Aubrey on June 17, 2007
  71. chemistry

    A voltaic cell consists of a standard hydrogen electrode in one half-cell and a Cu/Cu2+ half-cell. Calculate [Cu2+] when E cell is 0.070 V. NOTE::::::::::::::::::::ANSWER IN SCTIENTIFIC NOTATION PLEASE!!! thank you!

    asked by Dalton on November 21, 2015
  72. Chemistry

    Consider the NiCd (nickle cadmium) cell found in rechargeable batteries. 1.)Which element is the cathode when the cell is recharging (being electrolytic)? 2.)How many cells must be present to produce 1.2 V 3.)Which element is the anode when the cell is

    asked by Sara on June 16, 2015
  73. Bio

    In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells almost as large as a chicken egg which of the following characteristics would favor the growth of large cells? 1- thin layer of

    asked by bubba on October 26, 2009
  74. Bio

    In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells almost as large as a chicken egg which of the following characteristics would favor the growth of large cells? 1- thin layer of

    asked by bubba on October 25, 2009
  75. chemistry(check my steps)

    The electrochemical cell described by the cell notation has a standard cell potential of -0.35 V. Calculate the Wmax (kJ) the cell has done if 1893.5 g of MnO42-(aq) (Molar Mass - 118.94 g/mol) forms. Round your answer to 3 significant figures. Pt(s) |

    asked by eng on June 4, 2010
  76. physics

    1. A vector has (at minimum) how many parts associated with it? 2. When adding three vectors graphically one needs to: 1. Spin each one like a spinner on a board game. 2. Do nothing because more than two vectors cannot be added graphically 3. draw all the

    asked by Jawad on August 29, 2005
  77. H. P short essay Q.

    why are axon terminals sometimes called "biologist transducers"?

    asked by Gigg on October 19, 2010
  78. Human Physiology Short essay Question

    why are axon terminals sometimes called "biologist transducers"?

    asked by Gigg on October 20, 2010
  79. Science Check Please

    1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow and retain heat. boil constrict cool down

    asked by YOLO on March 23, 2015
  80. Chem -plz check work

    so i've worked on this some more, now I am asking if someone will plz check my work 2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a solution of iron (II) sulphate FeSO4(aq)and a silver Ag(s) electrode in a silver nitrate solution,

    asked by Sarah H on June 3, 2008
  81. Physics

    A spherical virus has a diameter of 50mm . It is contained inside a long, narrow cell of length . What uncertainty does this imply for the velocity of the virus along the length of the cell? Assume the virus has a density equal to that of water.

    asked by paige on November 28, 2011
  82. bioelectricity

    Let Pk, Pna and Pcl be permeabilities of squid axon membrane for potassium, sodium and chloride, respectively. During the rest, the ratios of permeabilities are given by Pk:Pna:Pcl = 1.0 : 0.043 : 0.44 During the peak of an action potential these ratios

    asked by B on February 19, 2013
  83. Statistics

    The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 90% of students now own a cell phone and 10% do not own a cell phone. Fifteen

    asked by Mackenzie on December 3, 2014
  84. Biology

    Determine which aspect of a eukaryotic cell can be eliminated without interfering with cell survival. Write a proposal, stating which structure you intend to eliminate, what its function is within the cell, and how the cell will be able to function in its

    asked by Chelsea on May 22, 2010
  85. Neuroscience

    I'm struggling with the following question: The opening of chloride selective channels by a neurotransmitter X will drive membrane potential toward the chloride equilibrium potential. Assume that early during cell development, Cl is pumped into the cell

    asked by John on September 13, 2015
  86. Physiology

    Prostaglandins are formed as part of the inflammatory response, and are often formed after a cell has been damaged. From what cell organelle are prostaglandins formed?

    asked by Jerome on February 15, 2011
  87. geometry

    Let u = [2,−3, 1] and v = [0, 1, 4]. Calculate the vector u − v. Place u and v tail-to-tail to form two sides of a triangle. With regard to this triangle, what does u−v represent? Calculate the number u•u and discuss its relevance to the diagram

    asked by sarah A on April 12, 2010
  88. math

    Let u = [2,−3, 1] and v = [0, 1, 4]. Calculate the vector u − v. Place u and v tail-to-tail to form two sides of a triangle. With regard to this triangle, what does u−v represent? Calculate the number u•u and discuss its relevance to the diagram

    asked by sarah A on April 13, 2010
  89. Astronomy

    Why do widths/strengths of spectral lines differ between supergiant stars and main sequence? Does the density of gases in the outer layers play a part?

    asked by nichola on July 8, 2009
  90. Science

    which of the following is a function of DNA 1)controlling the production of proteins in the cell 2)breaking down proteins in the cell 3)producing energy from food molecules inside the cell 4)controlling substances that enter and leave the cell 5)joining

    asked by Freeman on February 12, 2013
  91. Science Check Please Dr.Bob222

    I am sorry would..Hopefully this would make it easier 1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin * 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to

    asked by YOLO on March 23, 2015
  92. science

    What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a

    asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! on May 7, 2014
  93. Science

    What is the function of the nucleus in a cell? A.The nucleus controls the cell’s activity.** B.The nucleus identifies a cell as belonging to a plant. C.The nucleus determines what substances enter and leave the cell. D.The nucleus can be seen under a

    asked by Anonymous on August 22, 2016
  94. science

    What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a

    asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! on May 7, 2014
  95. AP Chem. Please Help

    Consider the cell Pb(s)| PbSO4(s)| SO4(2-) (aq , 0.60 M)|| H+(aq , 0.70 M)| H2(g , 192.5 kPa)| Pt. If E◦ for the cell is 0.36 V at 25◦C, write the Nernst equation for the cell at this temperature. I do not understand this at all right now.

    asked by AllysonR99 on September 28, 2015
  96. AP Chemistry

    Consider the cell Pb(s)| PbSO4(s)| SO4(2-) (aq , 0.60 M)|| H+(aq , 0.70 M)| H2(g , 192.5 kPa)| Pt. If E◦ for the cell is 0.36 V at 25◦C, write the Nernst equation for the cell at this temperature. I do not understand this at all right now.

    asked by AllysonR99 on September 27, 2015
  97. Chemistry II

    For the cell Fe(s)©¦Fe2+(aq)¨UO2(g)©¦H+(aq), H2O(l)©¦Pt(s) Indicate a) standard cell potential; b) overall cell reaction c) number of electrons transferred

    asked by Rebecca on May 3, 2011
  98. Biology

    During the cell cycle, if the cell detects that mistakes have been made in replication, the cell may die by apoptosis. True/False

    asked by Jaxon on January 29, 2012
  99. 9th grade

    i need help finding what these words are from these clues: possible opening found in the cell membrane substance which makes up cell walls granular material in the nucleus that thickens to become chromosomes the endoplasmic reticulum is a network of....

    asked by Jillian on September 16, 2009
  100. Chemistry

    Given cell Cd | CdCl2 (0.55M) || NaBrO3 (0.34M), NaBr (0.12M), pH=1.20 | Pt 1. How many electrons are transferred? 2. What is E° for the cell? 3. What is E for the cell?

    asked by Kelly on December 2, 2014