Answer:
Methane is a covalent bond. Methane is a chemical compound from the bonding one carbon atom and for hydrogen atoms. Although electronegativity increases as you go right of the periodic table, hydrogen has an electronegativity of 2.20. Chlorine has an electronegativity of 2.55. There difference in electron negativity (0.34). Therefore it is a non polar compound. If there difference was much greater, than they would form a ionic bond. Alkali metals tend to form the most ionic bond, but although hyrdogen is placed with them, it has a higher electronegativity so hydrogen is an exception.
Carbon has 4 valence electrons so it will want to gain 4 more electrons to become stable (Octet rule). Hydrogen has 1 valence electron, so it will want to lose it to become stable. Therefore, one carbon atom takes 1 electrons from 4 hydrogen atoms.
Answer:
H2O and CO
Explanation:
they both form covalent bonds because none both of the elements are non-metal. Mgo and NaF both have metals in them so they would form ionic bonds.
Covalent bonds, two non-metal
Ionic bonds, a metal and a non-metal
Answer:
0.417M
Explanation:
Equation of the reaction
2HCl+Na2CO3→2NaCl+H2O+CO2
From dilution principle
no of mole=conc × volume
from the balanced equation
no of mole of Na2CO3=2× no of mole of HCl
HCl=acid=A
Na2CO3=base=B
since n=cv
Conc of base × vol of base=2× conc of acid×volume of acid
2M×5ml=2×12M×Volume of acid
volume of acid=10/24
=0.417(3 decimal place)