acids, bases and ph indicators

Question 1

Acids characteristics

Answer 1

often solutions but sometimes crystals, react easily with bases and metals. they are non-metals. They are corrosive, sour tasting and conduct electricity.

Question 2

What happens when acid crystals dissolve in water

Answer 2

produce an acid solution, know as aqueous. These acids release hydrogen atoms.

Question 3

Base characteristics

Answer 3

react similarly to acids if concentrated enough. metals. They are caustic (very concentrated), bitter, conduct electricity and feel slippery—usually crystals.

Question 4

What happens when bases are dissolved into water

Answer 4

They produce an alkaline solution and release hydroxide ions.

Question 5

Ph of acids, bases and neutrals

Answer 5

acids 0-6, bases 8-14, neutrals 7

Question 6

universal ph colours for acids and bases

Answer 6

acids = red - yellowgreen, bases=bluegreen - dark purple, neutral = green

Question 7

indicators

Answer 7

change colour at only a certain ph. e.g thymol blue only shows strong acids and bases.

Question 8

how to write a base

Answer 8

write the metal/element name and add oxide or hydroxide on the end with a space inbetween.