When we study (4), or the study of matter and energy, we need to know two things to figure out how fast an object is going. First, we need to know how far the object traveled, or the (5). Second, we need to know how long it took the object to reach its destination, or the (6). By dividing the total distance by the total time, we can find the (7) of the object. This speed can be used to find the amount of (8) the ball has (the energy of motion).

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.