Buy Reactions of acids Discussion Qustions

Buy Reactions of acids Discussion Questions
Buy Reactions of acids Discussion Qustions
Quick questions
1 Name the separation process used to:
• separate excess solid metal oxide from a solution of a soluble salt
• form crystals of a soluble salt from a solution of that salt.
2 Describe the differences between an acid and an alkali.
3 Describe how the colour of universal indicator added to
hydrochloric acid will change as sodium hydroxide is added until
it is in excess.
4 Describe the difference between:
• a strong acid and a weak acid
• a dilute acid and a concentrated acid.
Exam-style questions
5 Zinc chloride is a soluble salt that can be formed by reacting
solid zinc carbonate with an acid.
5–1 Zinc chloride contains the ions Zn2 and Cl−. Give the formula of
zinc chloride. [1]
5–2 Give the word equation for the reaction of zinc carbonate to form
zinc chloride. [2]
5–3 Name the particle in the acid that makes it acidic. [1]
5–4 Describe a method for producing pure, dry crystals of zinc
chloride from solid zinc carbonate and your chosen acid. [6]
Total: 10
6 A student decided to monitor the changes in pH of the
neutralisation reaction between nitric acid, HNO3, and sodium
hydroxide, NaOH, using universal indicator solution.
6–1 Name the products of the reaction between nitric acid and
sodium hydroxide. [1]
6–2 Give the name of the particle that gives a solution of pH less than 7. [1]
6–3 Give the name of the particle that gives a solution of pH greater than 7. [1]
6–4 Give the ionic equation for the neutralisation reaction between
nitric acid and sodium hydroxide. State symbols are not required. [1]
p216 5.4.2.3 RP1
AT4
p210–11 5.4.2.4
p210–11

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