Flashcards in C2 - Acids And Alkalis Deck (21):
What pH does the strongest acid have?
What pH does the strongest alkali have?
What is an indicator?
A dye that changes colour based on pH.
What is universal indicator?
A combination of dyes that gives the pH scale.
What is universal indicator useful for?
Estimating the pH of a solution.
What is an acid?
A substance with a pH of less than 7.
What ions do acids form in water?
What is a base?
A substance with a pH of greater than 7.
What is an alkali?
A base that dissolves in water.
What ions do alkalis form in water?
What is the reaction between acids & bases?
What is the word equation for the reaction between acids & bases?
acid + base -> salt + water.
What is the ionic equation for the reaction between an acid & a base?
H+ + OH- -> H2O.
What pH will the products of a neutralisation reaction have?
What colour will universal indicator go at the end of a neutralisation reaction?
What does (s) mean?
What does (l) mean?
What does (g) mean?
What does (aq) mean?
Aqueous: dissolved in water.
What is the pH scale?
A measure of how acidic or alkaline a solution is.