reactivity

2. which is essential for ironoxide to happen? water, lead or carbon.
6. Elements that react to form positive ion are ___.
10. Metals atom are ___ when they react because they lose electrons.
13. What is the oxidising agent in this reaction: lead oxide + carbon → lead + carbon monoxide?
17. How to test for carbon dioxide.
18. Calcium+carbon.
21. Which can displace zinc from zinc sulphate.
22. which one is less reactive magnesium or aluminum.
23. Which gas is required to burn.
24. When u add gold in hydrochloric acid.
25. When there is 2 oxygen what do you add at the end.

1. zinccinoxide+magnesium.
3. What is the most reactive metal on the periodic table?
4. Violent reaction and very dangerous when reacted with dilute acid.
5. Which metal could be used for the sacrificial protection of iron?
7. magnesium+hydrochloric acid= magnesium chloride+___.
8. Which of these react with dilute acid? lead or copper.
9. True or nope can iron displace zinc?
11. Metals can be arranged in order of their reactivity in a ___.
12. magnesium has slow reaction in cold water to form ___?
14. What is potassium stored in?
15. Which one reacts with steam but not water to form an oxidre? iron, copper or magnesium.
16. What reacts violently with dilute acid and reacts slowly with cold water.
19. Which one is more reactive copper or silver.
20. What is the most reactice element on the periodic table?