On the right it says molecules H2o in questions 1 and 2​

For 1: 12.0 moles of water will contain number of molecules

For 2: The given amount of water molecules will be present in 5.41 moles of water.

Explanation:

According to the mole concept:

1 mole of a compound contains number of molecules

We are given:

Moles of water = 12.0 moles

Using above concept:

If 1 mole of a compound contains number of molecules

So, 12.0 moles of water will contain = number of molecules

Hence, 12.0 moles of water will contain number of molecules

We are given:

Molecules of water = molecules

Using above concept:

If number of molecules are present in 1 mole of a compound

So, number of molecules will be present in = moles of water

Hence, the given amount of water molecules will be present in 5.41 moles of water.

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

nuhygjhuhuouh9oygyuhuh8h9guig97uogh8uog978o0rfyhkmkv h