Scientists have found strange new life-forms called “tubeworms” on the deep ocean bottom. which most likely provides energy for the tubeworms?

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

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