In the 1870s and 1880s labor unrest led to:

broad public support of unions' struggle against big business.

congress's passing legislation supporting the formation of unions.

a ban on irish immigration.

the use of federal troops during strikes.

Why would the rumor of a government contract change the value of this companys stock

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

After the civil war which president was called a "carpetbagger"?