When does phenolphthalein turn pink?
a) in the presence of a base
b) in the presence of...
Chemistry, 24.08.2019 03:50 princessroyal
When does phenolphthalein turn pink?
a) in the presence of a base
b) in the presence of an acid
c) when it is in a neutral solution
d) when it is reacting with a metal
Answers: 2
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Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green
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In general metals get as you move from left to right across the periodic table.
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