According to the collision theory, for a reaction to be successful, it must have correct orientation of the atoms of the reactants. which of the following must also be true for a successful reaction to occur? (2 points) the particles must have adequate velocity. reactants must have high molecular mass. the collision must have sufficient energy. a catalyst must be present.

The collision must have sufficient energy.

This would be the best choice. For the reaction to be successful, to build a bond for example, the energy necessary to do that must be present.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

answer: they produce more slow than unicellular organisms.