Answer:
im pretty sure its b. sand and iron
ik that magnetism easily separates iron
Mass number is the total number of Protons and Neutrons. Simply subtract 85 from 210. 210-85=125 neutrons
Answer:
15.6 times longer is 15.625 times
Explanation:
the first one is 2.5 bigger, and then if you use that length on the area you can just cube 2.5
Answer: Option A. 0.820g/mL
Explanation:
Mass = 12.3 g
Volume = 15mL
Density = Mass /volume
Density = 12.3/15 = 0.82g/mL
