Explanation:
the investigation lasts for 7 days.
hope this helps you.
Answer:
Test tube one is a compound because it is 2 elements combine..Test tube to is an element
Explanation:
Answer:
It would be known as a chemical reaction or a chemical compound.
Answer:
I would say the last one because mass is not created nor destroyed.
Explanation:
Answer:
Oxidation number of F2O = 0−(−1×2)
State of oxygen will be=+2
