Question

a number of substances and their chemical formulas are listed below. check the ones that are compounds.
□ neon (ne)
□ carbon monoxide (co)
□ glucose (c₆h₁₂o₆)
□ cobalt (co)
□ fluorine (f₂)

Explanation:

Step1: Recall the definition of a compound

A compound is a substance made up of two or more different elements chemically bonded together.

Step2: Analyze each substance

• Neon (Ne): It is a single element (noble gas), so it's not a compound.
• Carbon monoxide (CO): It is made up of carbon (C) and oxygen (O) atoms, two different elements bonded together. So it is a compound.
• Glucose ($\ce{C6H12O6}$): It is made up of carbon (C), hydrogen (H), and oxygen (O) atoms, different elements bonded together. So it is a compound.
• Cobalt (Co): It is a single element, so it's not a compound.
• Fluorine ($\ce{F2}$): It is a diatomic molecule of the same element (fluorine), so it's an element (molecular element), not a compound.

Answer:

The substances that are compounds are:

• carbon monoxide (CO)
• glucose ($\ce{C6H12O6}$)