'Data booklet' diaporamas de présentation

CHEMISTRY DEPARTMENT WAID ACADEMY

CHEMISTRY DEPARTMENT WAID ACADEMY. Standard Grade Topic 1. 12 Seconds Remaining. Approximately how many chemical elements are there?. About 50. About 80. About 100. About 150. 15 Seconds Remaining. What is formed when two or more substances come together without reacting?.

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CHEMISTRY DEPARTMENT WAID ACADEMY

CHEMISTRY DEPARTMENT WAID ACADEMY. Metals. 20. Which of the metals shown can be found uncombined in the Earth's crust?. Magnesium Aluminium Sodium Copper. 20. Which of the metals shown is extracted from its ore using electricity?. Copper Aluminium Iron Silver. 20.

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Higher Chemistry Unit 1(c) Ionisation energy

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