The mass of recovered copper may be measured greater or less than the amount at the beginning. a. Give at least one reason why the mass of recovered copper might be greater than the initial mass of copper, and one reason why it might be less than the initial mass.
b. What steps could be taken to minimize these sources of error in the experiment?

Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2