Acids, alkalis and neutralisation Flashcards
1
Q
What are acids?
A
They have a PH below 7
Turns litmus red
Turns universal indicator yellow, orange or red
Forms solutions containing H+ ions
2
Q
Finish the sentence … The more H+ ions in the solution…
A
The stronger the acid
3
Q
What are bases/Alkalis?
A
Have a PH above 7
Turn litmus green
Turn universal indicator dark green, blue or purple
4
Q
What is the formula for neutralisation?
A
Acid+Alkali —— salt + water
5
Q
What do strong alkalis have a high concentration of?
A
OH- ions