Question

介 [9] State whether the following statements are true or false: MgO + H2 → Mg + H2O is an example of oxidation reaction. [10] Air is optically denser than water [11] Nichrome wire is used to make resistors. [12] Brain is never involved in reflex action.​

Answer 1

Answer:

9 false ( because mg is more reactive than H2)

10. yes

11. No

12. yes