Find the molar mass of nitric acid (hno3).

M = 63.02g/mol

Explanation:

Molar mass = the atomic masses of each atom combined

H = 1.01

N = 14.01

O = 16.00

M = 1.01(1) + 14.01(1) + 16.00(3)

M = 63.02

Therefore the molar mass of nitric acid is 63.02g/mol

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.