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sfhb chemistry
chem
Question | Answer |
---|---|
a solution made up mostly of water | aqueous |
a substance that is dissolved in another substance | solute |
contains two or more atoms | molecule |
contains at last two different atoms | compound |
the smallest subunits of elements | atoms |
contain a single type of atom | element |
a solution containing charged particles | electrolyte |
have a positive charge | protons |
have a negative charge | electrons |
excess H+ ions make for a low pH reading | acids |
A pH of 7 | neutral |
an excess of OH- ions and a pH of higher than 7 | basic |
helps maintain acid/base balance in the body by weakening them | buffers |
proteins that accelerate chemical reactions | enzymes |