First step: identify how many heart beats in a year.
To determine the heart beats in a year multiply the heart beats in a minute with 
years.
Thus, heart beats in a year comes out to be = 
= 
heart beats in a year
Heart beats 
in a life time.
Thus, number of years he lives is calculated by the division of heart beats in a year and heart beats in a life time.
Number of years he lives = 
= 
= 
= 
years
Thus, number of years he lives is years
Answer:
C3H8 + 5O2 ====> 3CO2 + 4H20
Answer:
beneath the surface of the Pacific Ocean comes from samples and video collected by an unmanned lander,
B: Saturn, because it has over 10 rings.
Answer:
Yes
Explanation:
A molecule has a center of symmetry when, for any atom in the molecule, an identical atom exists diametrically opposite this center an equal distance from it(Wikipedia).
A center of symmetry is said to exist in a molecule when reflection of all parts of the molecule through the center of symmetry produces an indistinguishable configuration(Housecroeft and Sharpe,2012)
Obviously, the Cl2 molecule has a center of symmetry, hence it is symmetrical. Reflection of the molecules through its center of symmetry produces an indistinguishable configuration.
