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CHEMISTRY DEPARTMENT WAID ACADEMY

CHEMISTRY DEPARTMENT WAID ACADEMY. Unit 1 Acids and Alkalis. 12. Acid solutions have a pH value of. Between 5 and 9. Equal to 7. Less than 7. More than 7. 12. Pure water has a pH value of. 3 6 7 9. 12. Which of the following pH values shows the most alkaline solution?. 1 6 9

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CHEMISTRY DEPARTMENT WAID ACADEMY

CHEMISTRY DEPARTMENT WAID ACADEMY. Unit 1 Susbstances. 12. Approximately how many elements are there?. About 50 About 80 About 100 About 125. 15. What is the symbol for the element sodium?. S Si Se Na. 15. What is the name of the element which has the symbol Ca?. Carbon Calcium

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Waid academy unit - PowerPoint PPT Presentation

CHEMISTRY DEPARTMENT WAID ACADEMY

CHEMISTRY DEPARTMENT WAID ACADEMY