Their great power as reducing agents makes them very useful in liberating other metals from their oxides or halides.
ðɛɹ ɡɹˈeɪt pˈaʊɚɹ æz ɹᵻdˈuːsɪŋ ˈeɪdʒənts mˌeɪks ðˌɛm vˈɛɹi jˈuːsfəl ɪn lˈɪbɚɹˌeɪɾɪŋ ˈʌðɚ mˈɛɾəlz fɹʌm ðɛɹ ˈɑːksaɪdz ɔːɹ hˈælaɪdz.