level: Acids, Alkalis, Redox reactions
Questions and Answers List
level questions: Acids, Alkalis, Redox reactions
| Question | Answer |
|---|---|
| What do acids and alkali combine to form | Water which is neutral |
| What are acids | Substances that form H+ ions when they dissolve in water |
| What are alkalis | substances that form OH- ions when dissolved in water |
| What does the PH scale do | measure how acidic or alkaline a substance is |
| What is an oxidation reaction | 1) gaining oxygen 2) also lose of electrons |
| What is a reduction reaction | 1) Lose of oxygen 2) Gain of electrons |
| What is an example of a reduction reaction | When a metal oxide reacts with carbon monoxide to return to its atomic form metal + co2 |
| What is an example of a oxidation reaction | When a metal reacts with oxygen to form a metal oxide |