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VRAAG 6 Die volgende chemiese reaksie word gegee: Fe2O3(…

VRAAG 6 Die volgende chemiese reaksie word gegee: Fe2O3(s)—> Fe(s)+ O2(g) 6.1 Is dit ’n SINTESE of ONTBINDINGS reaksie? Verduidelik jou antwoord. (2) 6.2 Stel die wet van behoud van massa in woorde. (2) 6.3 Balanseer die chemiese vergelyking. (2) 6.4 Wys hoe die wet van behoud van massa toegepas kan word in die chemiese vergelyking. (3)     [9]

Question 2 The diagram below shows the classification of mat…

Question 2 The diagram below shows the classification of matter. Right click on the following button to open the DIAGRAM in a separate tab.     Write down the letter representing each of the following:   2.1 a combination of two or more substances without causing a chemical change in any of the other substances. (1) 2.2 boron (1) 2.3 pure substances (1) 2.4 water + oil (1) 2.5 a good conductor of electricity (1)     [5]

  INSTRUCTIONS 1. This paper consists of two section…

  INSTRUCTIONS 1. This paper consists of two sections:   (a) Section A – Multiple choice questions (10 marks)   (b) Section B – Structured questions (65 marks)-To be uploaded in the second quiz. 2. A points breakdown by question is provided at each question. 3. Answer ALL questions. 4. A data sheet is provided at the start of the test. Open the data sheet in a separate page. 5. Start each structured question on a separate blank page. 6. Number each answer in exactly the same way as the question paper. 7. You are allowed to use a non-programmable calculator. 8. Round off all calculations to two decimal places. 9. Upload only one answer script at the end of the exam paper for section B in the second quiz. 10. Use the ‘File Upload’ button to upload your script for section B. 11. NB. Only PDF format files will be accepted. Jpeg (or other) format papers will not be marked. 12. The answers you submit must be your own, original work. No copying from any source is permitted. Complete the declaration before you submit.