What is the average speed of the boat between 4 and 6 minutes

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

What methods could you use to solubilize calcium carbonate