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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.



1 Answer

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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

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