a- cations
b- anions
c- polar covalently bonded
d-non- polar covalently bonded
e- in hydrogen bonds
Homework Answers
answer is (a)
Sodium and potassium are alkali metals and are not found freely in nature as they are highly reactive. They form electrovalent bond but do not take part in hydrogen bonding. Sodium occurs as salt (NaCl) in nature as solid and Zeolites in cationic form and potassium occur as cation in blood.
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a- cations
b- anions
c- polar covalently bonded
d-non- polar covalently bonded
e- in hydrogen bonds...
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions....
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions. a) What is the electrostatic valance of the of each C-O bond? b) How many of these bonds can each O make? c) How much charge does the O anion have left for bonding if it is bonded to one C4+*? d) The Fe2* cations in siderite are coordinated by 6 oxygen anions. What is the electrostatic valence of the Fe2+-O bonds? In siderite,...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d....
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Answer: E. Why isn't Hydrogen bonds considered the strongest bond if its also a Dipole-Dipole ?...
Answer: E. Why isn't Hydrogen bonds considered the strongest
bond if its also a Dipole-Dipole ?
84) Of the various chemical bonds in biology, select the strongest one. A) Van Der Waals bond interactions to form water B) Hydrogen bonds to form stable DNA molecules C) A hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom D) Lipophilic bonds that repulse water E) Covalent bonds
Solutions containing cations A^+, B^+, C^+, and D^+ were mixed with solutions containing anions W^-, X^-,...
Solutions containing cations A^+, B^+, C^+, and D^+ were mixed with solutions containing anions W^-, X^-, and Z^-. Precipitates formed as indicated: An unknown solution contains only one of the cations. Outline a procedure using only two anion solutions for its identification.
Q43. Write formulas for the following cations: a. Potassium: b. calcium: c. ammonium: d. lead(II) :...
Q43. Write formulas for the following cations: a. Potassium: b. calcium: c. ammonium: d. lead(II) : e. copper(I) : f. zinc: g. titanium(IV) : h. silver: i. nickel(III): j. hydrogen: k. tin(II) : l. mercury(II) : m. iron(III) : Q44. Write formulas for the following anions: a. fluoride: b. oxide: c. iodide: d. carbonate: e. hydrogen carbonate: f. phosphate: g. sulfide: h. sulfate: i. nitride: j. nitrate: k. phosphide: l. chloride:
14. When are atoms most stable? A) when they have the fewest possible yale (B) when...
14. When are atoms most stable? A) when they have the fewest possible yale (B) when they have the ma C) when all of the electron Orbit D) when all electrons are paired e the fewest possible valence electrons they have the maximum number of unpaired electrons in all of the electron orbitals in the valence shell are filled ods with 15. Water molecules can form hydrogen bonds with Acompounds that have polar covalent bonds B) compounds that have non-polar...
9) Which contains both polar and non-polar bonds? (1 point) a) NH4Cl b) HCN HỌC c)...
9) Which contains both polar and non-polar bonds? (1 point) a) NH4Cl b) HCN HỌC c) H202 mod d) CH4 e lo
non Gtrada 1) Add the correct number of bonded H's and electron pairs to make the...
non Gtrada 1) Add the correct number of bonded H's and electron pairs to make the bonding and formal charge correct. All the bonds between C, CI, O, and N are shown. Show the lone pair electrons and bonds to H on each molecule. You are given non-H atoms and correct formal charge. Group CI-C'-C-C-C C-O=C-C *N-C 2) Draw the structure and list what the atoms' electrons are doing in the molecule. (core electrons, valence electrons, orbitals, bonding, and lone...
Membrane structures are maintained primarily by A.) Covalent Bonds B.) non-spontaneous assembly C.) Hydrogen Bond D.)...
Membrane structures are maintained primarily by A.) Covalent Bonds B.) non-spontaneous assembly C.) Hydrogen Bond D.) Hydrophobic Effect E.) Ionic Interactions The answer says it’s D but I don’t understand how...can it please be explained
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions. a) What is the electrostatic valance of the of each C-O bond? b) How many of these bonds can each O make? c) How much charge does the O anion have left for bonding if it is bonded to one C4+*? d) The Fe2* cations in siderite are coordinated by 6 oxygen anions. What is the electrostatic valence of the Fe2+-O bonds? In siderite,...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Answer: E. Why isn't Hydrogen bonds considered the strongest
bond if its also a Dipole-Dipole ?
84) Of the various chemical bonds in biology, select the strongest one. A) Van Der Waals bond interactions to form water B) Hydrogen bonds to form stable DNA molecules C) A hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom D) Lipophilic bonds that repulse water E) Covalent bonds
Solutions containing cations A^+, B^+, C^+, and D^+ were mixed with solutions containing anions W^-, X^-, and Z^-. Precipitates formed as indicated: An unknown solution contains only one of the cations. Outline a procedure using only two anion solutions for its identification.
14. When are atoms most stable? A) when they have the fewest possible yale (B) when they have the ma C) when all of the electron Orbit D) when all electrons are paired e the fewest possible valence electrons they have the maximum number of unpaired electrons in all of the electron orbitals in the valence shell are filled ods with 15. Water molecules can form hydrogen bonds with Acompounds that have polar covalent bonds B) compounds that have non-polar...
9) Which contains both polar and non-polar bonds? (1 point) a) NH4Cl b) HCN HỌC c) H202 mod d) CH4 e lo
non Gtrada 1) Add the correct number of bonded H's and electron pairs to make the bonding and formal charge correct. All the bonds between C, CI, O, and N are shown. Show the lone pair electrons and bonds to H on each molecule. You are given non-H atoms and correct formal charge. Group CI-C'-C-C-C C-O=C-C *N-C 2) Draw the structure and list what the atoms' electrons are doing in the molecule. (core electrons, valence electrons, orbitals, bonding, and lone...
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