It takes sam 0.5 hour to drive to school. his route is 32 km long. what is sam's average speed?

What is a number added in front of a formula in order to balance the equation

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

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