What is the percent composition by mass of sulfur in the compound MgSO4 gram formula mass =120g/mol

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

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

If two identical atoms are bonded,what kind of molecule is formed