Answer: The 3rd one
Explanation: Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.
I might be wrong
Answer:
Calculate density
Weight/mass
126
g
Volume
15
cm³
Density
8,400
kg/m³
Explanation:
CVOPEDIA-CVOSOFT
ESPERO TE SIRVA
NaHCO3
Na = 1
H = 1
C = 4