A sample of material originally had 3.0 X 1028 atoms of a pure radioactive isotope when it first formed. If the half- life of the sample is 817 years, and the sample now has 1.875 X 1027 atoms remaining, how long has it been since the sample formed

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

What is true for a substance that releases energy

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest