Chemistry for Biologists

Water and living organisms

1. The alkaline properties of solution with a pH >7 are due to:
hydroxide ions
oxide ions
hydroxonium ions
hydrogen ions
2. In a water molecule, each bond between the oxygen atom and the two hydrogen atoms are best described as:
a hydrogen bond
a single non-polar covalent bond, with a small negative charge on the hydrogens and a small positive charge on the oxygen
a single polar covalent bond, with a small positive charge on the hydrogens and a small negative charge on the oxygen
a single non-polar covalent bond
3. The acidic properties of solution with a pH <7 are due to:
hydroxide ions
oxide ions
hydroxonium ions
hydrogen ions

 

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