Answer:
Explanation:
CuCO3(s) ====> Cu(ii)O(s) + CO2(g)
Nothing else needs to be done. The equation is balanced.
The answer is F-1since it is gaining therefore you can take this as electron affinity.
Answer:
E
Explanation:
The question talks of a PHYSICAL model of the sun. An equation, chart, computer program and paragraph are most definitely not physical models.
Answer:
temperature
Explanation:
it is not composed of atoms or molecules
