Which has a larger radius, the oxygen atom (O) or oxygen ion (O-2) ? Explain. Isn't the ion bigger because negative ions are bigger than atom's radius. im not sure though

54,130 results

  1. Chemistry

    The hydroperoxide ion, HO2–(aq), reacts with permanganate ion, MnO4–(aq) to produce MnO2(s) and oxygen gas. Balance the equation for the oxidation of hydroperoxide ion to O2(g) by permanganate ion in a basic solution.

  2. Chemistry

    which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen? (1) carbon (2)nitrogen (3)oxygen (4) fluorine

  3. Chemistry

    The hydroperoxide ion, HO2– (aq), reacts with permanganate ion, MnO4– (aq) to produce MnO2 (s) and oxygen gas. Balance the equation for the oxidation of hydroperoxide ion to O2(g) by permanganate ion in a basic solution.

  5. Chemistry

    Which has a larger radius, the oxygen atom (O) or oxygen ion (O-2) ? Explain. Isn't the ion bigger because negative ions are bigger than atom's radius. im not sure though.

  6. Chemistry

    Study the balanced equation. C + O2 → CO2 (M O2 = 32 g/mol; M CO2 = 44 g/mol) When 78.0 g of carbon dioxide (CO2) are produced, what mass of oxygen is present in the product? 56.7 g oxygen 35.0 g oxygen 52.3 g oxygen 28.4 g oxygen I do not believe it is

  7. Science Help!

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom B. The oxygen atom donates an electron to each hydrigen atom C. A pair of electrons is shared at

  8. Biology

    If plants need oxygen for cellular respiration, then why do plants release oxygen into the atmosphere? More oxygen is produced during photosynthesis than the plant needs for cellular respiration, so the plant needs to release the extra oxygen. Plants need

  10. Chemistry

    Consider the resonance structures for the carbonate ion. O--C-O(-) l O(-) (-)O-C--O l O(-) (-)O-C-O(-) l l O How much negative charge is on each oxygen of the carbonate ion? A)0, B) -.33, C)-.50, D) -.67, E)-1.00, F)-1.33, G)-1.50, H)-1.67, I)-2.00 What is

  11. Ap Chem

    explain each of the following observations using principles of atomic stucture and/or bonding. a] potassium has a lower first-ionization engergy than lithium. b] the ionic radius of N3- is larger than that of O2-. c] a calcium atom is larger than a zinc

  12. Chemistry

    Write a formula for the ionic compound that forms between each of the following pairs of elements. 1. aluminum and oxygen Express your answer as a chemical formula. AlO and Al2O3 and Al2O3 the 2 was the bottom right cornor and I got this message Use

  13. Chemistry

    For each of the following, enter the number of covalent bonds that the atom can form: (A) One atom of carbon (B) One atom of sulfur (C) One atom of nitrogen with no net charge (D) One atom of nitrogen with positive net charge (E) One atom of oxygen with no

  15. Physics

    How many grams of water (H_2O) have the same number of oxygen atoms as 1.0 (mol} of oxygen gas? atomic mass of H is 1 and O is 16, so H2O has a molar mass of 18. Oxygen gas is O2, with a molar mass of 32. So 1.0 mole of oxygen gas has 6.02x10^23 molecules

  16. chemistry

    a. Explain what must happen in order for the oxygen atom to become negatively charged. b. Explain what must happen in order for the oxygen atom to become positively charged

  17. Science

    compare the number of valence electrons an oxygen, O, atom has with the number of valence electrons a selenium, Se, atom has. are oxygen and selenium in the same period or group?

  18. 8th grade chemistry

    2CuSO4 what does the information above represent? (A) two molecules made of one copper atom, one sulfur atom, and four oxygen atoms. (B) two elements made of one copper atom, one sulfur atom, and four oxygen atoms. (C) two copper atoms, one sulfur atom,

  20. Science--Help.

    Which of the following is NOT one of the eight most common elements in Earth’s continental crust? carbon silicon oxygen aluminum The most abundant element in Earth’s continental crust (by weight) is _____. 2. oxygen silicon calcium iron 3. The central

  21. Chemistry

    Write the chemical formulas for the compounds containing each of the following: a) one calcium atom for every two iodide atoms. b) two nitrogen atoms for every four oxygen atoms. c) one silicon atom for every two oxygen atoms. d) one zinc atom for every

  22. Chemistry

    Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?

  23. Monatomic ion Oxygen

    No clue how to explain this. Just don't understand it: Which formation of the monatomic ion of oxygen is the most energetically favorable? A) O2- B) O2+ C) O4+ D) O- E)O6+

  25. Introduction to Physical Science

    If two protons and two neutrons are removed from the nucleus of an oxygen-16 atom, a nucleus of which element remains? It was simple to say that oxygen-16 remains but is there a formula for this. Thank you

  26. Science

    When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion? A. +2 B. -1 C. -2 D. +1

  27. Science

    Which is most likely to be a part of an ionic bond? An atom with no valence electrons An atom with one valence electron An atom with two valence electrons An atom with three valence electrons To form an oxygen molecule , Two oxygen atoms share two

  28. Chemistry

    Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion

  30. physics

    A water molecule consists of an oxygen atom and two hydrogen atoms. Oxygen has a mass of 16 atomic units (u) and each hydrogen has a mass of 1 u. The hydrogen atoms are each at an average distance of 96 pm ( 96 x 10 -12 m) from the oxygen atom, and are

  31. Chem - Elements

    I need help on identifying four elements. 1. a member of the same family as oxygen whose most stable ion contains 54 electrons. (Sulfur?) 2. member of alkali metal family whose most stable ion contains 36 electrons. (Cesium??) 3. noble gas with 18 protons

  32. Chemistry

    Liquid vitamin C, (ascorbic acid) C6H8O6 , readily reacts with atmospheric oxygen, O2, to form liquid dehydroascorbic acid, C6H6O6 and water. Explain why this is a chemical reaction. Write a balanced equation for this reaction. How many mole of oxygen gas

  33. chemistry

    Air consits of 21% oxygen, 78% nitrogen and 1% argon by volume. Calculate the partial pressures in Pa if total pressure is 1 atm. My teacher just converted 1atm in pa and then did 21% of that for oxygen etc etc. Can you explain why she did this, is volume

  35. CHEM

    if you were to draw a Lewis dot structure for HOCl...would it be H:Cl:O: (with double dots above & below the Oxygen & Chlorine) or would it be: H:O:Cl: (same thing for the double dots being above & below the Cl & O? Basically...is Oxygen the central atom

  36. physics

    A water molecule consists of an oxygen atom with two hydrogen atoms bound to it. The bonds are .100nm in length and the angle between the two bonds is 106 degrees. Use the x-y axis shown and determine the location of the center of gracity of molecule.

  37. science-biology help

    knowing that as the steepness of a concentration graident increases, the rate of diffusion increases, explain how a single celled organisms would respond in an oxygen rich pond compared to an oxygen poor pond. I'm not really sure but in an oxygen poor pond

  38. life science

    which two statements explains how a earthworms organ system help provide its cells with oxygen? a. the nervous system removes oxygen from the body **b. the curatorial system carries oxygen to different parts of the body. **c. the respiratory system brings

  40. Science

    If a mineral sample has a mass of 10 g, how many grams of oxygen does it contain? You need more information than that to determine the amount of oxygen or any other element in the mineral. Your question is the same kind as, "My car was in the rain today.

  41. science

    Which statement best compares an atom to an ion? A.An ion is an atom that has lost its charge. B.An ion is an atom that has gained or lost protons. C.An ion is an atom that has gained or lost electrons. D.An ion is an atom that has a different number of

  42. scince

    One molecule of water (H2O) contains two atoms of hydrogen and one atom of oxygen.A hydrogen atom has a mass of 1.0 u and an atom of oxygen has a mass of 16 u, approximately. (a) What is the mass in kilograms of one molecule of water? (b) How many

  43. Chemistry

    An airplane is pressurized to 650mm Hg, which is the atmospheric pressure at a ski resort at 13,000ft altitude. a. if air is 21% oxygen, what is the partial pressure of oxygen on the plane? b. If the partial pressure of oxygen drops below 100mm Hg,

  45. Chemistry

    For which of these elements would the first ionization energy of the atom be higher than that of the diatomic molecule? helium oxygen carbon lithium Please explain why and thanks

  46. Physics

    The atomic mass of a nitrogen atom (N) is 14.0 u, while that of an oxygen atom (O) is 16.0 u. Three diatomic gases have the same temperature: nitrogen (N2), oxygen (O2), and nitric oxide (NO). Rank these gases in ascending order (smallest first), according

  47. Chem

    what does an -ite or -ate ending in a polyatomic ion mean? i'm thinking it mean Oxygen is in the formula, or is it Sulfur is in the formula? i'm not sure oxygen is in both ites and ates. The ate has more oxygen than ite. NaClO2 sodium chlorite NaClO3

  48. chem

    one atom of silicon can properly be combined in a compound with A. one atom of chlorine B. two atoms of oxygen C. three atoms of hydrogen D. four atoms of calcium B. two atoms of oxygen (as in SiO2.. quartz and sand) Ther is also a compound SiO. It is used

  50. physics

    I have no way to solve this question. help me please The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as massive as an oxygen atom. Using this information and the data provided in the

  51. Conceptual Physical Science

    What is the approximate mass of an oxygen atom in atomic mass units? What is the approximate mass of two oxygen atoms? How about an oxygen molecule?

  52. Health

    Why does the blood returning to the heart have very little oxygen in it? A. The heart is not pumping oxygen fast enough . B. The cells throughout the body use the oxygen .

  53. science lab

    I got these results from my dissolved oxygen lab: Temperature Dissolved Oxygen in Celcius (mg/L) 17 5.8 21 5.4 23 5.3 27 5.1 I understand that as the temperature increases the dissolved oxygen concentration decreases but i don't understand how to answer

  55. chemistry

    dissolved oxygen in aquatic systems is important for the survival of freshwater fish and they require a minimum of 5 parts per million(ppm) of dissolved oxygen (02) in a stream lake to survive. although this amount seems small, how many oxygen molecules

  56. chemistry

    for an oxygen atom,wich requeres more energy,the addition of two electrons or the removal of one electron?explain why

  57. Chemistry+Singe replacement

    Balance the following equations if the reactions will occur. gold + oxygen Au + O2 --> ??????? barium + oxygen Ba + O2 --> ??? bismuth + oxygen --> Bi + O2 --> ??? help please. keep in mind this is single replacement

  58. chemistry

    How many moles of oxygen are there in 23.5g of H2SO4? (numbers are subscripts)How many oxygen atoms? How many grams of oxygen?

  60. Chemistry

    This question is very confusing, I do not understand what it wants me to do. Each reaction below has been identified by type. Use this information to help predict products. Copy and then complete each equation by writing the products of the reactions.

  61. college chemistry

    Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen

  62. Physical science

    Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?

  63. Physical Science

    Compare the number of valence electrons an oxygen, O, atom has with the number of valence electrons a selenium, Se, atom has. Are oxygen and selenium in the same period or group?

  65. Chemistry

    Which is the smallest particle among the particles below? a. cesium atom b. cesium ion c. oxygen atom d. oxygen ion e. not enough information

  66. Chemistry

    Which one pair has the larger radius?Explain? a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion

  67. Chemistry 22

    Which one in this pair has the larger radius? Explain a. Calcium atom or calcium ion b. Aluminum ion or Magnesium ion

  68. Science

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom. B. The oxygen atom donates an electron to ach hydrogen atom. C. A pair of electrons is shared at

  70. Science

    When two hydrogen atoms bond with one oxygen atom to form water, what happens to the electrons? A. Each hydrogen atom donates its electron to the oxygen atom. B. The oxygen atom donates an electron to ach hydrogen atom. C. A pair of electrons is shared at

  71. DrBob222-Questions

    Can you please check these for me. Thank you very much in return:-) For Al2(SO4)3 you gave me Aluminum ion and Sulfate ion. These are the rest: CaCl2 = Calcium ion and Chlorite ion Na2O = Sodium ion and Oxygen ion AgCl = silver ion and chlorine ion Na3PO4

  72. math

    water has a chemical formula h2O which means each molecule of water contains two atoms of hydrogen one atom of oxygen if oxygen atom has a mass 16 times as much as the hydrogen one .what are the propotions of oxygen and hydrogen in 2kkg of water

  73. Chemistry

    Explain how the formulas for H2O and NaCl provide different information about the composition of these two compounds. What I think: For every 1 atom of oxygen, there are 2 atoms of hydrogen. For every one atom of sodium there is one atom of chlorine.

  75. chemistry

    36 colored paper clips (12 each of 3 different colors) 1.Each paper clip represents a single atom. Designate a different color of paper clip to represent atoms of oxygen (O), hydrogen (H), and carbon (C). Makes two molecules each of hydrogen (H2) and

  76. Chemistry

    Write the chemical formulas for the compounds containing each of the following: a) one calcium atom for every two iodide atoms. b) two nitrogen atoms for every four oxygen atoms. c) one silicon atom for every two oxygen atoms. d) one zinc atom for every

  77. Physics

    48.0 g of oxygen (O2 is diatomic) are confined in a rigid 1.00x10^3 L cubical container at temperature 300.0 K. Find the gas pressure and the force exerted by the oxygen gas on any of the six faces of the cube. Mass number of an oxygen atom is 16.0

  78. science

    which of the following has the largest nos of oxygen atom. 1- 1 gm of oxygen atom 2- 1 gm o^2 3- 1 gm of ozone

  80. physics

    A water (H2O) molecule consists of two hydrogen atoms and one oxygen atom. The oxygen atom is located at the origin. One hydrogen atom is between the positive x-axis and positive y-axis and the other hydrogen atom is between the negative x-axis and the

  81. chemistry

    explain why oxygen "likes" to form an O^2- ion. O2 is a molecule, not an ion. O2 is stable in the outer electron configuration.

  82. Organic Chemistry

    Consider the resonance structures for the carbonate ion. O--C-O(-) l O(-) (-)O-C--O l O(-) (-)O-C-O(-) l l O How much negative charge is on each oxygen of the carbonate ion? A)0, B) -.33, C)-.50, D) -.67, E)-1.00, F)-1.33, G)-1.50, H)-1.67, I)-2.00 What is

  83. chemistry

    How does an ionic bond form between zinc and oxygen? Zn has two electrons in its outside shell and wants to give them away (which makes the next inner shell now the outer shell but is is full with eight electrons). Oxygen has six electrons in its outside

  85. physics

    Suppose that you are able to decompose water into hydrogen gas and oxygen ga and that ou can capture all of these gases that are produced. knowing that the mass of an oxygen atom is 8 times that of a hydrogen atom, describe how you could determine which of

  86. math

    A quantity of oxygen gas had 16.32 g of the radioactive isotope oxygen-19 in it. When measured exactly 10 minutes later, the amount of oxygen-19 was 0.964 g. What is the half-life, in seconds, of oxygen-19?

  87. Chem

    Living things require oxygen for respiration. Fuels require oxygen for burning. Air contains much more nitrogen than oxygen. Is it a good thing to have more oxygen than nitrogen in air? Explain your answer.

  88. Science

    Hello van some one show me how to draw a dot and cross diagramm for 1 lithium atom and 1 fluorine atom(Lif) and also a diagram for 1 magnesium atom and 1 oxygen atom (MgO) Thankyou Paul.

  90. chemistry

    nitric acid is composed of HNO3 molecule.A sample of 4.50 g was obtained. calculate the number of oxygen atom in the sample. this is what i do .can u check if i am wrong or miss something answer : mole HNO3 = 4.50g/63 = 0.07 mol mole : no of particle/NA =

  91. physics

    Thanks for the answer. I ask If one proton and one neutron are added to the nucleus of a nitrogen atom, which atom will the new nucleus look like? And you gave me the answer: The new atom would be oxygen, isotope 16. Could you please explain to me how.

  92. physics

    Rubidium forms the postive Rb+ Is this ion larger or smaller then the neutral atom? Explain PLEASE

  93. Science

    if one cup has a larger volume of water in it than a second cup, which would you expect to have a larger amount of dissolved oxygen (or would it be equal for both)? I would expect more water to dissolve more oxygen. More water dissolves more salt, more

  95. Chemistry

    Im stuck on this question. The unusual aspect of functional group replacement of an alcohols hydroxyl group by chlorine by treatment with thionyl chloride is: A)spontaneous creation of a carboccation and SO2 Cl,the ion pair created by SOCl's mechanism of

  96. physics

    I have no idea. Please help. Thank you. The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as massive as an oxygen atom. Using this information and the data provided in the drawing, find

  97. Physics

    The drawing shows a sulfur dioxide molecule. It consists of two oxygen atoms and a sulfur atom. A sulfur atom is twice as massive as an oxygen atom. Using this information and the data provided in the drawing, find (a) the x coordinate and (b) the y

  98. Chemistry

    Could some answer this question. Im stuck on it. Thanks The unusual aspect of functional group replacement of an alcohols hydroxyl group by chlorine by treatment with chonyl chloride is: A)Spontaneous creation of a carbocation and SO2 Cl, the ion pair

  100. Chemistry

    Is there someone out there that can tell me if I answered this right or if I need to study some more? Thanks What is it that makes water such a good solvent for polar substances? Why is it called the universal solvent? Water is such a good solvent for

  101. math

    What is one mole of H2O composed of? A. 2 hydrogen atoms and 1 oxygen atom B. 2 × (6.02 × 1023) hydrogen atoms and 6.02 ×1023 oxygen atoms C. 3 atoms of water and 2 oxygen molecules D. one half of a molecule of peroxide I say A

  102. chm

    1. What does the term electronegativity mean? Answer the tendency for an atom to pull electron density toward itself the number of positive charges in the nucleus minus the number of electrons around it an atom's ability to form bonds with oxygen atoms my

  103. Chemistry

    Using the following information, identify the strong electrolyte whose general formula is Mx(A)y * zH2O Ignore the effect of interionic attractions in the solution. a. A"-is a common oxyanion. When 30.0 mg of the anhydrous sodium salt containing this

  105. Chem

    which particle is larger in radius silver ion or neutral silver atom

  106. Chemistry

    What is the de Broglie wavelength of an oxygen molecule, O2 traveling at 521 m/s? Is the wavelength much smaller or much larger than the diameter of an atom. (on the order of 100 pm) How do I do this

  107. Chemistry

    In our text book, the formula for finding the formal charge of an element in a compound is c(sub f) = X - (Y + Z/2) where x = the number of valence electrons y= the number of unshared electrons owned by the atom z= the number of bonding electrons shared by

  108. Chemistry-Formal Charge

    I have a test tomorrow and I don't really understand how to do formal charge and I've been looking at it and it just isn't clicking. Thank you for your help. Count the electrons around the atom. If the electron(s) is/are shared with another atom, half goes

  110. Intro. Chemistry

    Based on the law of definite composition, Dalton proposed that one atom of carbon combines with two atoms of oxygen to always produce CO2. Similarly,he proposed that two atoms of hydrogen combine with one atom of oxygen to give a molecule of H2O.

  111. physics

    how do i go about in solving this? A helium atom (mass 4.0 u) moving at 596 m/s to the right collides with an oxygen molecule (mass 32 u) moving in the same direction at 402 m/s. After the collision, the oxygen molecule moves at 445 m/s to the right. What

  112. chemistry

    Rust contains an iron-oxygen compound in which there are three oxygen atoms for each two iron atoms. In this compound, the iron to oxygen mass ratio is 2.325:1. Another compound of iron and oxygen contains these elements in the ratio of 2.616:1. What is

  113. science

    Hydrogen burns with blue flame.Oxygen support burning when two atoms of Hydrogen combines with one atom of oxygen forms water this water put off the flames why?

  115. Chem.

    2 KClO3 ----> 2 KCl + 3 O2 Suppose the "inert" material in the mixture was not really inert, but that is reacted with oxygen from the atmosphere when heat was applied. Would the apparent mass of oxygen liberated be larger or smaller than it should be?

  116. chemistry

    Use the shell model to explain why a lithium atom Li, is larger than a beryllium atom, Be. I don't think it is larger. It has a lower atomic number 3 vs 4. It is therefore lighter see below link and click on elements. http://www.webelements.com/

  117. chemistry

    calculate no of neutrons present in 1*210^25 atoms of oxygen(atomic no of oxygen=8,mass no of oxygen=17

  118. chemistry

    Hi, how many moles does 0.225g of oxygen atoms represent? If 1 mole of oxygen atoms represents 16.0g? Thanks mols = grams/molar mass. thot so. Thanks for confirming ;) This is right for oxygen atoms, however, oxygen in the atmosphere is O2, and we normally

  120. physics

    A water molecule, consisting of two hydrogen atoms and one oxygen atom, resides in the plane of an x-y coordinate system. The coordinates of the oxygen atom and the two hydrogen atoms are, respectively, (0 m, 4.22 ✕ 10^−11 m), (7.57 ✕ 10^−11 m,

  121. chemistry

    how many molecules are in 5.5 moles of oxygen gas? How many atoms are in this quantity of gas? I used dimensional analysis and did: 5.5 mol. of oxygen x 6.02x10^23 molecules/1 mol of oxygen I got 3.3x^24 molecules of oxygen How do I find the # of atoms? I

  122. college chem. please help!!

    Calculate the % empty space in 1 mole of water at 25 degree C (d=0.9971g/ml). The volume of a water molecule can be taken as the sum of the volumes of the 2 hydrogen molecules and the oxygen atom. Use the single bonded covalent radii of 37pm for hydrogen

  123. Physical science

    Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?

  125. kayla

    A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

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