The energy required to remove two valency electrons of a metallic atom is called? a. second ionization energy b. ionization energy. c. electron affinity. d. activation energy

Explain the conductance result for pure H2O?

How many liters of 15% acid and 33% acid should be mixed to make 40 liters of 21% acid solution?

List the following metals Co, Ni, K, Pt, Ba, and Hg, in order of increasing activity (least active to most active)

How many protons does the largest transition metal have in its nucleus?

How do you distinguish a chemical change from a physical change

What mass of Na2SO4 is needed to make 2.0 L of 3.0 M solution? (Na=23g; S=32g; O=16 g)

Why is tape attracted to my skin? Give explanation

Food deteriorates more slowly in a refrigerator because

What occurs in a chemical reaction? Products are formed from reactants by the breaking and forming of new bonds. Products are formed without chemical bonds being broken. Reactants are formed without chemical bonds being broken.

What information does the atomic mass of an element provide