How many grams are in 7.32 x 1023 molecules of potassium carbonate (K2CO3)?

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

Which of the following describes a situation where competition between producers exists

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid