If 2 molecules of one reactant combine with 5 molecules of another to produce 3 molecules of a product then which of the following is the correct representation of the reaction? a. 2a + 3b = 5c b. a2 + b5 = c3 c. a2 + b3 = c5 d. 2a + 5b = 3c

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?