Which types of matter are made of atoms a. Mixtures
b. Elements
C. Compounds
D. All of the above

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

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

Chemistry worksheet - i am not sure what they are asking for exactly?