If 200cm^3 takes 10secs then 120 will take 6secs. i hope u understood
If copper is heated with iron oxide there is no obvious reaction because
copper is less reactive than iron.
On a reactivity chart, copper is far below iron. This makes it impossible for a replacement reaction to occur, so the equation doesn't change.
I hope I helped!
Answer:
B. Na+ and O2-
Explanation:
Na+ plus has 10 electrons and O2- also has 10 electrons
The difference between the two is that the values in discontinuous variation are fixed, while the values in continuous variation can be changed. :)
Answer:
A_________________________
