A number of substances and their chemical formulas are listed below. Check the ones that are compounds.

1. neon [tex] ( Ne ) [/tex]
2. carbon monoxide [tex] ( CO ) [/tex]
3. glucose [tex] \left( C_6 H_{12} O_6 \right) [/tex]
4. cobalt [tex] ( Co ) [/tex]
5. fluorine [tex] \left( F_2 \right) [/tex]



Answer :

To determine which substances from the given list are compounds, we need to examine the nature of each substance. A compound is a chemical substance that contains two or more different elements chemically bonded together.

Let's analyze each substance:

1. Neon (Ne)
- Neon is a noble gas and exists as a single element.
- \(\Rightarrow\) Neon is not a compound.

2. Carbon monoxide (CO)
- Carbon monoxide consists of one carbon atom chemically bonded to one oxygen atom.
- \(\Rightarrow\) Carbon monoxide is a compound.

3. Glucose \(\left( C _6 H _{12} O _6\right)\)
- Glucose is composed of six carbon atoms, twelve hydrogen atoms, and six oxygen atoms, all bonded together in a defined structure.
- \(\Rightarrow\) Glucose is a compound.

4. Cobalt (Co)
- Cobalt is a single element.
- \(\Rightarrow\) Cobalt is not a compound.

5. Fluorine \(\left(F_2\right)\)
- Fluorine as \( F_2 \) is a diatomic molecule consisting of two fluorine atoms bonded together.
- \(\Rightarrow\) Fluorine is a compound.

Summarizing the findings:

- Neon is not a compound.
- Carbon monoxide is a compound.
- Glucose is a compound.
- Cobalt is not a compound.
- Fluorine is a compound.

Therefore, the substances that are compounds are:
- Glucose
- Fluorine