Number of moles of sodium azide
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May someone me with these science questions

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

Plz a person walks 1 mile every day for exercise, leaving her front porch at 9 am and returning to her front porch at 9: 25 am what was the total displacement of her daily walk a. 1 mile b. 0 c. 25 min d. none of the above