7. Atomic mass
8. Atomic number
9. Chemical symbol
10. Right
Answer:
compounds are elements include an element and a compound
Explanation:
elements in the decomposition reaction is the substance that cannot be separated into simpler substances. Compounds, technically act as a reactant in the decomposition reaction, but since the reaction breakdown one substance into two or more, sometimes it exists in the product
I believe the correct answer is C. <span>Zn + CuCl2 —> ZnCl2 + Cu</span>
Use equation
number of moles= sample mass/molar mass
