Speed is defined as the distance an object travels per unit of time. Which TYPE of speed is observed when you look at the speedometer of a car? Question 7 options:

A)
Constant Speed
B)
Instantaneous Speed
C)
Average Speed

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4

Which of the following is a property of an acid solution? a. slippery to the touch b. ph less than 7 c. turns red litmus paper blue d. bitter taste