How many electrons does sodium lose in a chemical reaction ? a. 1

b. 2

c. 3

d. 4

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

What is a metal replacement reaction

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays