( ( Topics discussed ) ( ( include ( ( ( ( ( ( ( the ( atomic model ) ) ( of matter ) ) , ) ( types ( of ( chemical ( reactions ( and ( compounds ( , ( stoichiometry ( , ( periodicity ( and ( chemical properties ) ) ) ) ) ) ) ) ) ) ) ) ) , ) and ) ( chemical ( ( structure and ) bonding ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Topics)) (VP (VBN discussed))) (VP (VBP include) (NP (NP (NP (DT the) (JJ atomic) (NN model)) (PP (IN of) (NP (NN matter)))) (, ,) (NP (NP (NNS types)) (PP (IN of) (NP (NN chemical) (NNS reactions) (CC and) (NN compounds) (, ,) (NN stoichiometry) (, ,) (NN periodicity) (CC and) (NN chemical) (NNS properties)))) (, ,) (CC and) (NP (NN chemical) (NN structure) (CC and) (NN bonding)))) (. .)))
Topics discussed include the atomic model of matter, types of chemical reactions and compounds, stoichiometry, periodicity and chemical properties, and chemical structure and bonding.
(ROOT (S (NP (NP (DT The) (NNS atoms)) (PP (IN of) (NP (DT a) (NN compound)))) (VP (VBP are) (VP (VBN held) (ADVP (RB together)) (PP (IN by) (NP (NN chemical) (NNS bonds))))) (. .)))