Which element exists as single atoms?

Two things that biomedical has invented or innvated

Label a-f based on the table using c for concentrated and d for dilute

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