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10 December 2018
- 04:3304:33, 10 December 2018 diff hist +12 m Catalysis No edit summary
- 04:3104:31, 10 December 2018 diff hist +15 m Catalysis No edit summary
- 04:2904:29, 10 December 2018 diff hist +30 Catalyst No edit summary
- 04:2504:25, 10 December 2018 diff hist +4,974 Catalysis A catalyst is a substance that will increase the rate of reaction without being used up itself.