The ratio of surface area to volume is the amount of surface area per unit volume of a thing. This is an important value in various topics. In chemistry, this is an important value for chemical reactions. It can show reactivity of a solid material. Also, it has found some importance in biology because it shows how the cells are affected by the environment where that cell is found.<span />
Answer:
7
Step-by-step explanation:
The width is smaller, so it is 7.
Answer:
=209.09 mg
Step-by-step explanation:
given: material= radium
half life= 1590 years
initial mass
=500mg
we know that to calculate the amount left we use
= 


therefore
= 
=209.09058407921 mg
=209.09 mg amount left after 2000 years
Answer:
B. 2 x 3
Step-by-step explanation: