Answer: 0.077 M
Explanation:
Expression for rate law for first order kinetics is given by:

where,
k = rate constant = 
t = time taken for decay process = 10 minutes
a = initial amount of the reactant= 0.859 M
a - x = amount left after decay process =?
Putting values in above equation, we get:


Thus the concentration of a after 10.0 minutes is 0.077 M.
When soccer players run they are using friction to propell themselves
Answer:
im not too sure about that all i know is history
As its charge, proton -a positive charged molecule at the center of an atom- is the opposite of the electron -the particle which is orbiting the center of an atom.