What makes a rock an ore? a. it has to contain metal. b. it has to be igneous in origin. c. it has to be able to be mined economically. d. it has to be able to be dug out of the ground.

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17