Explanation:
I don't know sorry ok I have some work so I m sorry
Answer:
fossils are rare bc most dead organisms get decayed by environmental change and decomposers,most fossils are parts of bones and mostly found indry areas like deserts
Sodium chlorate decomposes into sodium chloride and oxygen.
The reaction is
NaClO3 --Δ--> NaCl + O2
The Δ means that heat is used
This equation is still not balanced.
Balancing the equation
2NaClO3 --Δ--> 2NaCl + 3O2
The equation is now balanced.
Answer:
2.5milligram
Explanation:
Due to Kr-42 the 20mg will diluted to the experinental evluation