Answer:
8
Explain
H: Ignoring the coefficient, we know there's 5+3=8 atoms
Density- The proportion of mass to volume of an object.
<span>Density determines what floats and what sinks. More dense sinks less dense will float.</span>
B.liquids thanks have a great day
Answer:

Explanation:
From the question we are told that:
1st Energy 
2nd Energy 
3rd Energy 
Generally the equation for Energy E for electron in one dimensional box at ground state
is mathematically given by


Therefore Length a is mathematically given as



Answer:
Carbon-12: with 6 protons and 6 neutrons and an atomic mass of 12.
Explanation: