Which statement correctly compares barium nitrate (ba(no3)2) and scandium nitrate (sc(no3)3)?
a. they contain the same number of no3 groups.

b. they contain the same number of oxygen atoms.

c. they contain the same total number of atoms.

d. they contain the same number of elements.

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.