Homework Answers
Ans : A and E
Hydrogen bonds are the intermolecular attractions that exist between the hydrogen atom of one molecule and Nitrogen or Oxygen or Fluorine atom of the another molecule.
So all amines such as the one shown in option A i.e. methanamine forms hydrogen bonds with water. The molecule in option E is ethanol which has O atom in its hydroxyl group capable of forming hydrogen bonds with water.
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Which molecules shown on the right will form strong hydrogen
bonds with water? Circle the correct...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lin...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lines and polygons represent carbons with C-H bonds omitted!) н. сн, Н,с. сн C H OH H,с н HO C-H Ш сн, H2C-o H C OH П I HC-0 H -C OH но Hас—о CH-он C В Circle the polar sites on each of these molecules a. b. Which of these molecules is/are soluble in water? Explain briefly.
please explain the answer Which of the interactions in the figure are hydrogen bonds that can...
please explain the answer
Which of the interactions in the figure are hydrogen bonds that can form between vitamin C and surrounding water molecules? Drag the appropriate labels to their respective targets. Labels can be used once, more than once, or not at all. Reset Help Н н a hydrogen bond H OH a hydrogen bond not a hydrogen bond Η. O H-ö Η a hydrogen bond a hydrogen bond H СС 8: :: 10: Η H Н Н a...
Because water molecules can form a variety of hydrogen bonds with each other, water molecules tend...
Because water molecules can form a variety of hydrogen bonds
with each other, water molecules tend to have more configurations
when they are by themselves than when they are mixed with other
molecules that cannot form hydrogen bonds. Imagine that the
interactions between water molecules and the molecules of a non
polar substance A (W-A interactions) are stronger than the W-W and
A-A interactions. In this case one can predict that:
Water Properties Homework. Unanswered Because water molecules can form...
Which of the following molecules can form hydrogen bonds? Select all that apply. A. NH3 B....
Which of the following molecules can form hydrogen bonds? Select all that apply. A. NH3 B. NaH C. DNA (this is a large polar molecule with the lots of oxygen and nitrogen atoms) D. H2O E. CH4 F. HI G. BH3 H. benzene (C6H6) Note: According to the Fisher Scientific MSDS, the solubility of benzene in water is very low so it is effectively insoluble. Solubility: 0.180 g/100 ml @ 25°C https://fscimage.fishersci.com/msds/02610.htm
4. For each of the molecules shown below, circle any atoms that can serve as hydrogen...
4. For each of the molecules shown below, circle any atoms that can serve as hydrogen bond donors or acceptors, and label each one "D" for donor or "A" for acceptor. ... н Н H HHHH
Possible Lewis structures for 6 molecules are shown below. Which figures show correct structures? Correct C:...
Possible Lewis structures for 6 molecules are shown below. Which figures show correct structures? Correct C: Correct » -- :0: Incorrect » :#-$i-: Incorrect - H-j=c-j-HI :o: Incorrect » H-c-5-11 H Correct :C-S-s-c: Check the numbers of valence electrons - all 6 should be neutral molecules, not ions. Submit Answer Incorrect. Tries 1/10 Previous Tries
9. Draw all of the possible hydrogen bonds between the following molecule and water molecules. Indicate...
9. Draw all of the possible hydrogen bonds between the following molecule and water molecules. Indicate the hydrogen bonds with dotted lines. :N-CEN: H 10. Polar molecules can contain more than one type of attractive force. Fill in the following table answering the question "Is this attractive force present between molecules of the given compound?" Write yes or no for each force. Molecule Ionic Attraction H-Bond Dipole-Dipole London CHCl3 CH3OH NH2 65- *NH3-C-COO 11. For each of the following pairs...
Help please No need for long explanation just the right option is fine, a or b...
Help please
No need for long explanation just the right option is
fine, a or b or c or d please. thank you!
Question 1 Rank these confirmations from east to most stable (loss stable < more stable) H H Н. BI Br HC HH₃C/ H CHE HC H HEC • Br UNI I I CHE H II - O<I<1 OIIIII IN1 Question 2 Which hydrogen atom is the most likely to be abstracted when this molecule is reacted with...
37. Which one of the following four organe Chydrocarbon molecules has the molecular formular CH2 A...
37. Which one of the following four organe Chydrocarbon molecules has the molecular formular CH2 A c-coc-c-c C-C-C-C-C * Check all of the following that involve a hydrolysis reaction. & points) a Breakup pomers, forming monomers Water is used to break bonds to form monomers e Nucleotides are joined together to form a nucleic acid Nucleic acid breaks up to form nucleotides Water breaks up, forming Hand-OH groups on separate monomers T-Hand-OH groups form water Preduces water as a by-product...
5) Below is an image of what a solution (mixture) of water and ethanol might look like. Identify all the hydrogen b...
5) Below is an image of what a solution (mixture) of water and ethanol might look like. Identify all the hydrogen bonds between various molecules using a dashed line ( ) between the hydrogen of one molecule and a lone pair on the other molecule. (0.5 pts total) H 0H H O: H H о—н Н H-O: H Н- HOf H-o H- HI Н. H-O H H
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lines and polygons represent carbons with C-H bonds omitted!) н. сн, Н,с. сн C H OH H,с н HO C-H Ш сн, H2C-o H C OH П I HC-0 H -C OH но Hас—о CH-он C В Circle the polar sites on each of these molecules a. b. Which of these molecules is/are soluble in water? Explain briefly.
please explain the answer
Which of the interactions in the figure are hydrogen bonds that can form between vitamin C and surrounding water molecules? Drag the appropriate labels to their respective targets. Labels can be used once, more than once, or not at all. Reset Help Н н a hydrogen bond H OH a hydrogen bond not a hydrogen bond Η. O H-ö Η a hydrogen bond a hydrogen bond H СС 8: :: 10: Η H Н Н a...
Because water molecules can form a variety of hydrogen bonds
with each other, water molecules tend to have more configurations
when they are by themselves than when they are mixed with other
molecules that cannot form hydrogen bonds. Imagine that the
interactions between water molecules and the molecules of a non
polar substance A (W-A interactions) are stronger than the W-W and
A-A interactions. In this case one can predict that:
Water Properties Homework. Unanswered Because water molecules can form...
4. For each of the molecules shown below, circle any atoms that can serve as hydrogen bond donors or acceptors, and label each one "D" for donor or "A" for acceptor. ... н Н H HHHH
Possible Lewis structures for 6 molecules are shown below. Which figures show correct structures? Correct C: Correct » -- :0: Incorrect » :#-$i-: Incorrect - H-j=c-j-HI :o: Incorrect » H-c-5-11 H Correct :C-S-s-c: Check the numbers of valence electrons - all 6 should be neutral molecules, not ions. Submit Answer Incorrect. Tries 1/10 Previous Tries
9. Draw all of the possible hydrogen bonds between the following molecule and water molecules. Indicate the hydrogen bonds with dotted lines. :N-CEN: H 10. Polar molecules can contain more than one type of attractive force. Fill in the following table answering the question "Is this attractive force present between molecules of the given compound?" Write yes or no for each force. Molecule Ionic Attraction H-Bond Dipole-Dipole London CHCl3 CH3OH NH2 65- *NH3-C-COO 11. For each of the following pairs...
Help please
No need for long explanation just the right option is
fine, a or b or c or d please. thank you!
Question 1 Rank these confirmations from east to most stable (loss stable < more stable) H H Н. BI Br HC HH₃C/ H CHE HC H HEC • Br UNI I I CHE H II - O<I<1 OIIIII IN1 Question 2 Which hydrogen atom is the most likely to be abstracted when this molecule is reacted with...
37. Which one of the following four organe Chydrocarbon molecules has the molecular formular CH2 A c-coc-c-c C-C-C-C-C * Check all of the following that involve a hydrolysis reaction. & points) a Breakup pomers, forming monomers Water is used to break bonds to form monomers e Nucleotides are joined together to form a nucleic acid Nucleic acid breaks up to form nucleotides Water breaks up, forming Hand-OH groups on separate monomers T-Hand-OH groups form water Preduces water as a by-product...
5) Below is an image of what a solution (mixture) of water and ethanol might look like. Identify all the hydrogen bonds between various molecules using a dashed line ( ) between the hydrogen of one molecule and a lone pair on the other molecule. (0.5 pts total) H 0H H O: H H о—н Н H-O: H Н- HOf H-o H- HI Н. H-O H H
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