At 30°C, a saturated solution of oxygen in water contains 0.130 grams of oxygen in each liter. What is the molarity of oxygen in this solution? (molar mass of 02 = 32)

How many atoms of oxygen are contained in 160 grams of n2o3

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?