Question

1. For each of the compounds listed below, write down how many atoms of each element is in one molecule of the compound. a) Hydrogen chloride (HCI) b) Sulfur dioxide (SO₂) c) Ammonia (NH₂) d) Carbon monoxide (CO) 2. For each of the compounds in question 1, draw a model of one molecule of the compound.

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Answer 1

1.

a) Hydrogen chloride (HCl) - 1 hydrogen atom, 1 chlorine atom

b) Sulfur dioxide (SO₂) - 1 sulfur atom, 2 oxygen atoms

c) Ammonia (NH₃) - 1 nitrogen atom, 3 hydrogen atoms

d) Carbon monoxide (CO) - 1 carbon atom, 1 oxygen atom

2.

a) Hydrogen chloride (HCl) :

H

|

Cl--C--

|

H

b) Sulfur dioxide (SO₂) :

O

//

O=S

\\

O

c) Ammonia (NH₃) :

H

|

H--N--H

|

H

d) Carbon monoxide (CO) :

O

//

C=O