Acids, bases and salts

Question 1

What colour does litmus go in acidic environments

Answer 1

red

Question 2

what colour does litmus go in alkaline environments

Answer 2

purple/blue

Question 3

what colour does phenolphthalein go in acidic conditions

Answer 3

colourless

Question 4

what colour does phenolphthalein go in alkaline conditions

Answer 4

pink

Question 5

what colour does methyl orange go in acidic conditions

Answer 5

red

Question 6

what colour does methyl orange go in alkaline conditions

Answer 6

orange

Question 7

why is universal indicator more useful

Answer 7

it gives a more exact answer of how acidic or alkaline the substance is

Question 8

Why could the simple indicators still be useful despite this

Answer 8

They are still useful for simply finding out whether a solution is acidic or alkaline. Also these simple indicators give a clear colour difference if there was a liquid with a close pH. Adding to this simple indicators will only change at a specific pH.

Question 9

All acids contain…

Answer 9

Hydrogen ions (H+)

Question 10

All alkalis contain…

Answer 10

Hydroxide ions (OH-)