Homework Answers
Answer : 3.A hydrogen atom in one water molecule is attracted to an oxygen atom in another water molecule.
Hydrogen bonding is a special type of dipole-dipole interaction between molecules.It is not a covalent bond.
These are weak interactions formed between hydrogen and a strongly electro negative atom such as flourine,oxygen etc
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Which of the following best describes hydrogen bonding in water? a A hydrogen atom shares electrons...
In this text, valence = (number electrons in valence sheel of free atom)-(number non-bonding electrons on...
In this text,
valence = (number electrons in valence sheel of free
atom)-(number non-bonding electrons on atom in molecule)
or
valence = (number of bonds)+(formal charge)
figure.4 has two models of CH5+ and text says first model has
valence of 6 which I don't understand.
according to equation above. shouldn't valence be
valence = 4-0=0 or valence=5+1(I'm not sure... because there
are one electron in hydrogen)=6??
Pre-Lab Exercise 2-3 Chemical Bonding One of the more challenging concepts to grasp in chemistry is...
Pre-Lab Exercise 2-3 Chemical Bonding One of the more challenging concepts to grasp in chemistry is chemical bonding, a topic that pops up again and again in A&P: We revisit it in cytology, the nervous system, blood, respiration, and digestion-to name just a few First let's do some basics. Use your textbook and this unit to answer the following questions 1. Do metals donate or accept electrons? What do they become after they donate/accept electrons? 2. Do nonmetals donate or...
Question 23 Which of the following statements is or are incorrect? Hydrogen only requires two electrons...
Question 23 Which of the following statements is or are incorrect? Hydrogen only requires two electrons in its valence shell when bonding It is possible for two atoms to share more than one pair of electrons, Covalent bonds occur between a metal and a nonmetal All elements try to acquire an octet of electrons in their valence shell when bonding. It is possible for two atoms to share more than one pair of electrons.
Which statement best describes an O3 molecule? Each atom in ozone is connected to another atom...
Which statement best describes an O3 molecule?
Each atom in ozone is connected to another atom by a bond having a bond order of 1.5.
The double bond in ozone switches back and forth between the two outer oxygen atoms.
An ozone molecule contains one single bond and one double bond.
1. Draw the Lewis structure of water showing all valence electrons with lines for covalent bonds...
1. Draw the Lewis structure of water showing all valence electrons with lines for covalent bonds and dots for unshared electrons. Add a box around each hydrogen- bonding donor site and add a circle around any hydrogen- bonding acceptor sites in your structure. (Hint: there are two of each. The equal number of donors and acceptors is why water hydrogen-bonds so well with other waters.) Draw the Lewis structure of hydrofluoric acid, HF, showing all valence electrons with lines for...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D)...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
Answer true or false. 1. Atoms that lose electrons to achieve a filled valence shell become...
Answer true or false. 1. Atoms that lose electrons to achieve a filled valence shell become cations and form ionic bonds with anions. 2. Ionic bonds tend to form between elements on the left side of the Periodic Table, and covalent bonds tend to form between elements on the right side of the Periodic Table. 3. Electronegativity is a measure of an atom's attraction for the electrons it shares in a chemical bond with another atom. 4. Fluorine, in the...
Which best describes the intermolecular forces present in NH3? dispersion forces only hydrogen bonding and dispersion...
Which best describes the intermolecular forces present in NH3? dispersion forces only hydrogen bonding and dispersion forces dipole dipole, hydrogen bonding, and dispersion forces dipole dipole forces only ion dipole and dispersion forces
Which of the following best describes London dispersion forces. Question 1 options: the intermolecular forces that...
Which of the following best describes London dispersion forces. Question 1 options: the intermolecular forces that exist when ions from an ionic compound are attracted to the dipole of polar molecules in a mixture. involves molecular orientations in which the positive end of one dipole is near the negative end of another forces that exist only between molecules that contain hydrogen atoms bonded to highly electronegative atoms such as O, N, F. Interactions between temporary dipoles cause atoms to be...
In this text,
valence = (number electrons in valence sheel of free
atom)-(number non-bonding electrons on atom in molecule)
or
valence = (number of bonds)+(formal charge)
figure.4 has two models of CH5+ and text says first model has
valence of 6 which I don't understand.
according to equation above. shouldn't valence be
valence = 4-0=0 or valence=5+1(I'm not sure... because there
are one electron in hydrogen)=6??
Pre-Lab Exercise 2-3 Chemical Bonding One of the more challenging concepts to grasp in chemistry is chemical bonding, a topic that pops up again and again in A&P: We revisit it in cytology, the nervous system, blood, respiration, and digestion-to name just a few First let's do some basics. Use your textbook and this unit to answer the following questions 1. Do metals donate or accept electrons? What do they become after they donate/accept electrons? 2. Do nonmetals donate or...
Question 23 Which of the following statements is or are incorrect? Hydrogen only requires two electrons in its valence shell when bonding It is possible for two atoms to share more than one pair of electrons, Covalent bonds occur between a metal and a nonmetal All elements try to acquire an octet of electrons in their valence shell when bonding. It is possible for two atoms to share more than one pair of electrons.
Which statement best describes an O3 molecule?
Each atom in ozone is connected to another atom by a bond having a bond order of 1.5.
The double bond in ozone switches back and forth between the two outer oxygen atoms.
An ozone molecule contains one single bond and one double bond.
1. Draw the Lewis structure of water showing all valence electrons with lines for covalent bonds and dots for unshared electrons. Add a box around each hydrogen- bonding donor site and add a circle around any hydrogen- bonding acceptor sites in your structure. (Hint: there are two of each. The equal number of donors and acceptors is why water hydrogen-bonds so well with other waters.) Draw the Lewis structure of hydrofluoric acid, HF, showing all valence electrons with lines for...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
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