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