1. Decomposition of LiNO\(_3\): * 4LiNO\(_3\) \(\xrightarrow{\Delta}\) 2Li\(_2\)O + 4NO\(_2\) + O\(_2\) * Products: Li\(_2\)O, NO\(_2\), O\(_2\) (3 products)
2. Decomposition of NaNO\(_3\): * 2NaNO\(_3\) \(\xrightarrow{\Delta}\) 2NaNO\(_2\) + O\(_2\) * Products: NaNO\(_2\), O\(_2\) (2 products)
3. Decomposition of Be(NO\(_3\))\(_2\): * 2Be(NO\(_3\))\(_2\) \(\xrightarrow{\Delta}\) 2BeO + 4NO\(_2\) + O\(_2\) * Products: BeO, NO\(_2\), O\(_2\) (3 products)
Total number of products: * 3 (LiNO\(_3\)) + 2 (NaNO\(_3\)) + 3 (Be(NO\(_3\))\(_2\)) = 8 products
Therefore, the total number of products formed is 8.
Final Answer: 8.