Answer:
Enlace electrovalente: Enlace químico que se caracteriza por una transferencia de uno o más electrones de un tipo de ion a otro. También llamado enlace iónico. * Enlaces químicos: el enlace se define como la fuerza que mantiene juntos a grupos de dos o más átomos y hace que funcionen como unidad.
Explanation:
Answer:
A) It is a practical source of energy on Earth.
Explanation:
The reaction shown is a nuclear fusion reaction. Nuclear fusion refers to the combination of two light nuclei to produce a heavier nuclei with a release of tremendous amount of energy. The energy released in a fusion reaction is so great and it is often difficult to achieve fusion reactions in a controlled nuclear reactor.
Fusion reactions just like the one shown is the source of energy on earth. The energy reaching the earth is obtained by fusion reactions in outer space.
Answer:
The answer is
<h3>1.340 × 10²⁴ sodium atoms</h3>
To find the number of atoms of sodium we use the formula
N = n × L
where
n is the number of moles
N is the number of entities
L is Avogadro's constant which is

We need to find the number of moles first
The formula is

where
M is the molar mass
m is the mass
n is the number of moles
From the question
M = 22.9 g/mol
m = 51.0 g

n = 2.227 moles
So the number of sodium atoms is

We have the final answer as
<h3>1.340 × 10²⁴ sodium atoms</h3>
Hope this helps you