What is ionizable hydrogen and why we say it replaceable hydrogen

Does the energy in a solid increase or decrease when changing to a liquid?

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

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8