To check an objeds hardnes, we need to set fees smooth or rouch
O is long or stort
O books shiny or bright
Oscatches or bends say
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Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3