Chemistry, 04.11.2019 01:31 kourismith13

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what types of atoms typically form covalent bonds?
a) metals with nonmetals, because their difference in electronegativity is above 1.7.
b) metals with nonmetals, because their difference in electronegativity is below 1.7.
c) nonmetals with nonmetals, because their difference in electronegativity is above 1.7.
d) nonmetals with nonmetals, because their difference in electronegativity is below 1.7.

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Answer from: kdlishs

What types of atoms typically form covalent bonds?

The correct

d) Nonmetals with nonmetals, because their difference in electronegativity is below 1.7.

En example to explain:
An example of a covalent bonding: HCl -> 2 nonmentals
-> a difference in electronegativity less than 1.7:

EN(Cl) = 3.0 and EN (H) = 2.1 (you can search these values in a periodic table)
/\EN = 3.0 - 2.1 = 0.9

0.9 < 1.7

I hope this helped you out!

Answer from: deepspy599otchpd

The correct answer is d.

Explanation:

A covalent bond between two atoms occurs when they join together to reach the stable octet, sharing electrons located at the last level. The electronegativity difference between the atoms must be less than 1.7 so that an ionic-type bond does not occur.

The two atoms share one or more pairs of electrons in a new type of orbital called molecular. Covalent bonds occur between atoms of the same non-metal element, between different non-metal atoms, and between a non-metal atom and the hydrogen atom.

Have a nice day!

Answer from: Quest

the balanced equation for reaction of ca metal with o2 to produce cao is as below

2 ca+ o2→ 2 cao2

explanation

the reaction is balanced since the number of atoms in reactant side is equal to number of atoms in product side. for example they are 2 atom of ca in reactant side and 2 atoms of ca in the product side.

the process is a meet the requirement of redox reaction because : calcium is oxidized from oxidation state 0 to 2+ while oxygen is reduced from oxidation state 0 to 2-

Answer from: Quest

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

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