Flashcards in Acids and alkali Deck (50)
Why do acidic and alkaline solutions conduct electricity well?
They contain oppositely charged ions that are free to move in solution and can carry charge
What is the proportion of hydroxide and hydrogen ions in alkaline solution ?
More OH- than H+
What happens to the pH and the concentration of an acid when you dilute it?
The pH goes up and concentration of the acid goes down
What happens to the pH and the concentration of an alkali when you dilute it?
The pH goes down and concentration of the alkali goes down
If a metal oxide is soluble in water what does it produce ?
If a non metal oxide is soluble in water what does it produce
What does acids contain?
Charged particles called hydrogen ions
what is the difference between a base and an alkali
A base is a substance that neutralises an acid
A base that is soluble in an alkali
All alkalis are bases but not all bases are alkalis
What is a spectator ion?
It's an ion that exists in the same form on both the reactant and product sides of a chemical reaction
what is titration?
an experimental method to determine the concentration of an unknown solution.
How to recognise hydrogen? (test for hydrogen?)
Burns with a pop
How to recognise oxygen? (test for oxygen)
Relights a glowing splint
How to recognise carbon dioxide? (test for carbon dioxide)
Turns lime water cloudy
What is the name of a metal oxide that do not dissolve in water but is capable of neutralising an acid?
What are the products of this reaction: Hydrochloric acid + potassium carbonate?
potassium chloride + water + carbon dioxide
What are the products for this reaction:
Sulfuric acid + Lithium oxide? (write the chemical formula for the salt produced)
Lithium sulfate + water
Salt: Lithium Sulfate, formula: Li2SO4
What is the formula for Sodium carbonate?
Formula for Sodium hydroxide (Alkali)
Write the chemical equation for the neutralisation reaction between Magnesium oxide and Nitric acid
MgO + HNO3 --> Mg(NO3)2 + H2O