Which best describes how a ph test strip works?
a. molecules in the paper react differe...
Which best describes how a ph test strip works?
a. molecules in the paper react differently with hydronium and hydroxide ions
b. the paper dissolves when placed in acids, but not when placed in bases
c. polar moleculee affect the paper differently than nonpolar molecules
d. the paper uses the low surface tension of water to attract acidic particles.
so far i think its a. but i just want to be sure.
Answers: 2
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