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Which of the following formulas represent covalent compounds? Check all that apply.

A. NO
B. KF
C. [tex]CH_5N[/tex]
D. [tex]C_3H_8[/tex]
E. CuO
F. None of the above

Sagot :

GinnyAnsweridn
To determine which of the provided formulas represent covalent compounds, we need to understand the basics of covalent bonding.

Covalent compounds are composed of nonmetals bound together by shared electron pairs, known as covalent bonds. Let's analyze each provided formula:

1. NO
- Nitrogen (N) and Oxygen (O) are both nonmetals.
- Hence, [tex]\(NO\)[/tex] is a covalent compound.

2. KF
- Potassium (K) is a metal, and Fluorine (F) is a nonmetal.
- This combination forms an ionic compound, not a covalent compound.

3. [tex]\(CH_5N\)[/tex]
- Carbon (C), Hydrogen (H), and Nitrogen (N) are all nonmetals.
- Thus, [tex]\(CH_5N\)[/tex] is a covalent compound.

4. [tex]\(C_3H_8\)[/tex]
- Carbon (C) and Hydrogen (H) are both nonmetals.
- [tex]\(C_3H_8\)[/tex] is a covalent compound.

5. CuO
- Copper (Cu) is a metal, and Oxygen (O) is a nonmetal.
- This combination forms an ionic compound, not a covalent compound.

6. None of the above
- We have already identified that some formulas represent covalent compounds, so this option is incorrect.

So, the formulas that represent covalent compounds are:

- NO
- [tex]\(CH_5N\)[/tex]
- [tex]\(C_3H_8\)[/tex]

Therefore, the correct answers are formulas 1, 3, and 4.
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