Which action demonstrates a chemical change?   a. ice melting into water   b. wood becoming charred and black from burning   c. water evaporating from a sugar solution, leaving behind sugar crystals   d. a balloon suddenly popping

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

What is a metal replacement reaction

What is the lowest number energy level where a d sublevel is found