Which of the following statements is TRUE regarding water? A. The properties of water are due to hydrogen bonding between individual water molecules B. Water is densest at 4 degrees C C. The properties of water are so unique that the presence of this molecule is thought to have been essential to the evolution of life D. Water is a polar molecule that is found in all living organisms E. All of the statements are true about water
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Which of the following statements about water is FALSE? Select one: a. The oxygen atom in water is more electronegative than the hydrogen atoms (and thus the oxygen atom in water has a partial negative charge). b. Water molecules are polar and thus associate with other water molecules via ionic bonds. c. The oxygen atom of a water molecule forms polar covalent bonds to the two hydrogen atoms. d. Water molecules are polar, however a water molecule has no net charge. e. All of the statements are false. f. All of the statements are true.
Madhur L.
Select all that apply: Which of the following is a characteristic of water's chemical structure and bonding, which contribute to its versatility as a life sustaining medium? a. covalent bond formed between the hydrogen of one water molecule and the oxygen of another water molecule b. ionic bonds formed between the hydrogen of one water molecule and the oxygen of another water molecule c. covalent bond formed between the hydrogen of one water molecule and the oxygen of another water molecule d. hydrogen bonds are possible because of the polar covalent bonds that exist between the oxygen and a hydrogens of a water molecule e. hydrogen bond formed between the hydrogen of one water molecule and the oxygen of another water molecule
Shaiju T.
Which of the following statements about water is not true? a. The electron-rich oxygen atom of one water molecule can interact with the electron-poor proton on another water molecule to form a hydrogen bond. b. Liquid water is only 15% less hydrogen bonded than ice. c. Water is a nonpolar molecule with a bent molecular geometry. d. Water can form highly ordered, cage-like, structures around nonpolar molecules. e. Water is a key player in the energetics of hydrophobic interactions.
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