( ( ( Basic ( chemical concepts ) ) ( such ( as ( changes ( in ( ( ( ( ( ( ( ( matter and ) energy ) , ) ( ( atoms and ) elements ) ) , ) compounds ) and ) ( ( ( ( ( their formula ) ( -LRB- ( s -RRB- ) ) ) , ) and ) ( chemical reactions ) ) ) ) ) ) ) ) ( ( will ( be ( covered ( first semester ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Basic) (NN chemical) (NNS concepts)) (PP (JJ such) (IN as) (NP (NP (NNS changes)) (PP (IN in) (NP (NP (NN matter) (CC and) (NN energy)) (, ,) (NP (NNS atoms) (CC and) (NNS elements)) (, ,) (NP (NNS compounds)) (CC and) (NP (NP (NP (PRP$ their) (NN formula)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-))) (, ,) (CC and) (NP (NN chemical) (NNS reactions)))))))) (VP (MD will) (VP (VB be) (VP (VBN covered) (NP (JJ first) (NN semester))))) (. .)))
Basic chemical concepts such as changes in matter and energy, atoms and elements, compounds and their formula(s), and chemical reactions will be covered first semester.
(ROOT (S (S (NP (NN Element)) (VP (VBZ is) (NP (NP (DT the) (JJ basic) (NN chemical) (NN building) (NN block)) (PP (IN of) (NP (NN matter)))))) (: ;) (S (NP (PRP it)) (VP (VBZ is) (NP (DT the) (JJS simplest) (NN chemical) (NN substance)))) (. .)))