Which of the substances listed are elements? * 6 points
S, Fe, O2, Sr, and Al
S, O2, and LiF
N2O4, O2, and LiF
N2O4, Fe, Sr, and Al

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s

All of the following statements point out negative aspects of the gilded age except: a. politicians gave government jobs to political supporters. b. political bosses cheated large cities out of millions of dollars. c. industrialists bribed members of congress to ensure favorable votes. d. in 1903, wisconsin became the first state to hold primary elections.

17 points! ! (explain your answer)