Which element has a higher first ionization energy than chlorine (Cl)? A. Argon (Ar)
B. Phosphorus (P)
C. Lithium (Li)
D. Iodine (I)

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity