C 2.3.2 Metals and Oxygen Flashcards
1
Q
What is the product in the reaction of magnesium with oxygen?
A
Magnesium oxide
2
Q
In a balanced chamical equation, what does the symbol (g) mean?
A
gas
3
Q
In a balanced chamical equation, what does the symbol (s) mean?
A
solid
4
Q
complete the word equation…
zinc + oxygen ->
A
zinc oxide
5
Q
Why do gold electrical connectors stay shiny?
A
Because gold is highly unreactive.
So gold does not react with oxygen i the air.
6
Q
Which of the following is the most reactive with acids and oxygen?
iron, copper or magnesium?
A
magnesium
7
Q
Which of the following is the least reactive with acids and oxygen?
iron, copper or magnesium?
A
copper
