Q1.€€€€€€€€€ The picture shows a lump of phosphate rock. Rob Lavinsky, iRocks.com – CC-BY-SA-3.0 [CC-BY-SA-3.0], via Wikimedia Commons Phosphoric acid is made by adding sulfuric acid to phosphate rock. (a) €€€€The rate of reaction between sulfuric acid …
Q1.€€€€€€€€€ Alums are salts. They have been used since ancient times in dyeing and medicine and still have many uses today. Three alums are shown in the table: € (a) €€€€These alums contain sulfate ions (SO 4 2-). Describe and give the result of a chemical test to show this.
Q1.€€€€€€€€(a)€€€€€€ In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate. The salt called potassium chloride is made when potassium hydroxide solution reacts with hydrochloric acid. €
The Rate and Extent of Chemical Change: Exam questions
Explain, in terms of particles, how and why the rate of reaction changes during the reaction of calcium carbonate with hydrochloric acid. (4 marks)
the rate and extent of chemical changes exam questions
Study with Quizlet and memorize flashcards containing terms like This symbol equation shows the production of ammonia: N2(g) + 3H2(g) ⇌ 2NH3(g). Where would the direction of the equilibrium shift if the pressure decreased?, example of biological catalyst, This symbol equation shows the production of ammonia: N2(g) + 3H2(g) ⇌ 2NH3(g). Which direction will …
The Rate and Extent of Chemical Change - Test Flashcards
Describe the energy changes in reversible reactions. If it's exothermic in one direction, it's endothermic in the opposite direction, the same amount of energy is transferred in each direction. What is equilibrium in a reaction? The rate of the forward …
Rate of Reaction | AQA GCSE Chemistry Exam Questions 2018
Questions and model answers on Rate of Reaction for the AQA GCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams.
The rate and extent of chemical change - BBC
Sample exam questions - the rate and extent of chemical change - AQA. Understanding how to approach exam questions helps to boost exam performance. Question types will include...
Sample exam questions - the rate and extent of chemical change …
GCSE. AQA. Sample exam questions - the rate and extent of chemical change - AQA Audio. Understanding how to approach exam questions helps to boost exam performance. Question types...
GCSE The Rate and Extent of Chemical Change Revision
GCSE The Rate and Extent of Chemical Change Revision. EdPlace's AQA Combined Science: Trilogy activities, exam style questions and practice papers covers content from the GCSE Combined Science: Trilogy (8464) specification.