What is a network solid? A. A crystalline solid held together by covalent bonds B. A crystalline solid held together by intermolecular forces C. A crystalline solid held together by metallic bonds D. A crystalline solid held together by charge attractions

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.