The gain of electrons is called
a. oxidation.
c. electrochemistry.
b. reduction.
d. half-reaction.

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

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

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg