4Li + O₂ = 2Li₂O
Li : Li₂O = 4 : 2 = 2 : 1
2 : 1
x : 4
x=4*2/1=8 mol
D) 8
Answer: 3 oxygen atoms!
Explanation: Let me know if I'm wrong, if not I'm happy to help!
Answer:
5
Explanation:
I know because I answer this question before and it was right
The mass of sample = 10 g
<h3>Further explanation </h3>
Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
The unit of density can be expressed in g/cm³ or kg/m³
Density formula:
ρ = density , g/ml
m = mass , g
v = volume , ml
Density is 5 g/ml and sample is 2 ml,so :
ρ = 5 g/ml
V = 2 ml
The mass :
Answer:
Nuclear decay changes the number of protons in the nucleus of an atom, and in doing so changes the element. ... If the same element were to undergo beta decay, the mass number would stay the same, and the atomic number would increase by 1, giving neptunium-235. Also Radioactive decay involves the emission of a particle and/or energy as one atom changes into another. In most instances, the atom changes its identity to become a new element.
Hope this helps you.