Which of the following electronic transitions in the oxygen atom will result in light emission? A. n i= 1⟶nf = 2
B. n i= 1⟶nf =3
C. n i =3⟶n f =2
D. n i =2⟶n f =3

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

What volume would 2.25 moles of ne has occupy at stp?