[Part 3]-C5- Chemical changes ⚗️
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What is the difference between concentration 🆚 strength of acids ? Hint: the amount
• the concentration of an acid tells us the amount of acid molecules, in a given volume of solution • ; the strength of an acid determines whether it completely or partially dissociates/ionises in aqueous solutions.
What is a spectator ion ? Hint: dosen’t…
• a spectator ion, is an ion that doesn’t take part in the chemical reaction and is found in solution, both before and after the reaction.
• Fill in the gaps: If you dilute a strong acid, the pH ________.
• If you dilute a strong acid, the pH increases.
In the periodic table, what are the ion charges
Group 1: +1 Group 2: +2 Group 3: +3 Group 6: -2 Group 7: -1
What is the ion charge and formula of ammonium ?
• Charge= +1 • Formula= Nh4+^
What is the ion charge and formula of nitrate ?
• Charge = -1 • Formula= NO3-^
What is the ion charge and formula of sulphate ?
• Charge= -2 • Formula= SO4^2-
What is the ion charge and formula of carbonate ?
• Charge= -2 • Formula= CO3^2-
What is the ion charge and formula of hydroxide ?
• Charge= -1 • Formula= OH-