hydrogen ions
What are acids in solution a source of?
hydroxide
What are alkalis in solution a source of?
7
What is the pH of a neutral solution?
low (less than 7)
Do acidic solutions have high or low pH values?
high (greater than 7)
Do alkaline solutions have high or low pH values?
alkaline
Is this solution acidic or alkaline?
acidic
Is this solution acidic or alkaline?
red
Give the colour of methyl orange indicator when it is put into an acidic solution
yellow
Give the colour of methyl orange indicator when it is put into an neutral solution
yellow
Give the colour of methyl orange indicator when it is put into an alkaline solution
colourless
Give the colour of phenolphthalein indicator when it is put into an acidic solution
colourless
Give the colour of phenolphthalein indicator when it is put into an neutral solution
pink
Give the colour of phenolphthalein indicator when it is put into an alkaline solution
it decreases
, What happens to pH when hydrogen ion concentration increases?
it increases
What happens to pH when hydrogen ion concentration decreases?
it decreases by 1
What happens to pH as hydrogen ion concentration in a solution increases by a factor of 10?
a concentrated solution has a higher amount of substance dissolved in the solution
What is the difference between a concentrated and dilute solution?
one that only partially dissociates into ions
What is a weak acid?
one that fully dissociates into ions
What is a strong acid?
any substance that reacts with an acid to form a salt and water only
What is a base?
soluble bases
What are alkalis?
salt + hydrogen
Complete this equation: acid + metal -->
salt + water
Complete this equation: acid + metal oxide -->
salt + water
Complete this equation: acid + metal hydroxide -->
salt + carbon dioxide + water
Complete this equation: acid + metal carbonate -->
a lit splint causes a 'pop'
What is the test for hydrogen?
lime water
What is needed to test for carbon dioxide?
What are acids in solution a source of?
hydroxide
What are alkalis in solution a source of?
7
What is the pH of a neutral solution?
low (less than 7)
Do acidic solutions have high or low pH values?
high (greater than 7)
Do alkaline solutions have high or low pH values?
alkaline
Is this solution acidic or alkaline?
acidic
Is this solution acidic or alkaline?
red
Give the colour of methyl orange indicator when it is put into an acidic solution
yellow
Give the colour of methyl orange indicator when it is put into an neutral solution
yellow
Give the colour of methyl orange indicator when it is put into an alkaline solution
colourless
Give the colour of phenolphthalein indicator when it is put into an acidic solution
colourless
Give the colour of phenolphthalein indicator when it is put into an neutral solution
pink
Give the colour of phenolphthalein indicator when it is put into an alkaline solution
it decreases
, What happens to pH when hydrogen ion concentration increases?
it increases
What happens to pH when hydrogen ion concentration decreases?
it decreases by 1
What happens to pH as hydrogen ion concentration in a solution increases by a factor of 10?
a concentrated solution has a higher amount of substance dissolved in the solution
What is the difference between a concentrated and dilute solution?
one that only partially dissociates into ions
What is a weak acid?
one that fully dissociates into ions
What is a strong acid?
any substance that reacts with an acid to form a salt and water only
What is a base?
soluble bases
What are alkalis?
salt + hydrogen
Complete this equation: acid + metal -->
salt + water
Complete this equation: acid + metal oxide -->
salt + water
Complete this equation: acid + metal hydroxide -->
salt + carbon dioxide + water
Complete this equation: acid + metal carbonate -->
a lit splint causes a 'pop'
What is the test for hydrogen?
lime water
What is needed to test for carbon dioxide?
