Cells contain chemical substances called ____________ that minimize changes in concentrations of H+ and OH-.
Correct Answer:
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Q19: The volume of space around a nucleus
Q20: Which type of chemical bond exists within
Q21: Hydrogen bonds exist within a water molecule.
Q22: Due to hydrogen bonding,ice is _ dense
Q23: We use the _ scale to measure
Q25: A substance that increases the concentration of
Q26: Discuss the difference between covalent,ionic and hydrogen
Q27: Atoms that have the same number of
Q28: Which statement is incorrect about acid rain?
A)It
Q29: When water ionizes,the negatively charged OH fragment
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