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2 years ago

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Phenolphthalein solution is used as an indicator of acids and bases. If added to an ammonia-based solution of window cleaner, we

would expect the solution to turn A) blue. B) brown. C) pink. D) yellow.

2 answers:

leva [86]2 years ago

3 0

I don’t know but look up the ph of ammonia and if it is below 7 then it is yellow and if it is above 7 then blue

kotykmax [81]2 years ago

3 0

The correct answer is C) Pink

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1 year ago

Should mammoths be re-created and released into the Arctic ecosystem

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3 years ago

Read 2 more answers

Why does your ankle feels cold when you apply a cold pack to it?

Tresset [83]

Answer:

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Explanation:

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2 years ago

An object was measured by a worker as

Gre4nikov [31]

Answer:

$\boxed{2.8 \, \%}$

Explanation:

$\text{Percent error} = \dfrac{\lvert \text{Measured - Actual}\lvert}{ \text{Actual}} \times100 \, \%$

Data:

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Actual = 17.9 cm

Calculation:

$\text{Percent error} = \dfrac{\lvert 17.4 - 17.9\lvert}{17.9} \times 100 \, \% \\\\= \dfrac{\lvert-0.5\lvert}{17.9} \times 100 \, \% = \dfrac{0.5}{17.9} \times 100 \, \% \\\\= 0.028 \times 100 \, \% = \textbf{2.8 \%}\\\\\text{The percent error in the measurement is } \boxed{\textbf{2.8 \%}}$

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SashulF [63]

Answer:

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2 years ago