Match the following words to their descriptions.

Question

Column A
1.
the smallest unit of matter:
2.
two atoms held together by an ionic bond:
3.
two atoms held together by a covalent bond:
4.
Si
5.
NaCl
6.
CO2

Answer 1

Here are the matches between the words in Column A and their descriptions:

1. the smallest unit of matter: Atom
2. two atoms held together by an ionic bond: NaCl
3. two atoms held together by a covalent bond: CO2
4. Si: Silicon (a chemical element)
5. NaCl: Sodium Chloride (table salt, formed by ionic bond)
6. CO2: Carbon Dioxide (formed by covalent bonds)

So here is the final matching:

1. Atom
2. NaCl
3. CO2
4. Silicon (Si)
5. Sodium Chloride (NaCl)
6. Carbon Dioxide (CO2)