Why is gold foil used on sculptures

A considerable amount of heat is required for the decomposition of aluminum oxide. 2 al2o3 (s) â 4 al (s) + 3 o2 (g) Î'h = 3352 kj (a) what is the heat change for the formation of 1 mol of aluminum oxide from its elements?

The following equation is one way to prepare oxygen in a lab. 2KClO3 → 2KCl + 3O2 Molar mass Info: MM O2 = 32 g/mol MM KCl = 74.55 g/mol MM KClO3 = 122.55 g/mol If 25.6 g of KCl are produced, then how many moles of KClO3 were consumed? 0.209 mol 0.

Why are alcohols classified as organic compounds?

Why does spring tides occur

Given stock solutions of glucose (1M), asparagine (100 mM), and NaH2PO4 (50 mM), how much of each solution would you need to prepare 500 mL of a reagent that contains 0.05 M glucose, 10 mM asparagine, and 2 mM NaH2PO4?

Review It! All of the following are correct, except: a; A galaxy contains a vast number of stars, their planetary systems, and a variety of other celestial objects. b; Stars orbit the many planets of a galaxy.

Which would be most likely be the pH of a highly-corrosive acid? a) 1 b) 5 c) 8 D) 11

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees.

An aqueous solution at 25∘C has a hydronium ion concentration of 3.2*10-9 M. What is the hydroxide ion concentration of the solution? Write your answer in scientific notation. Use the multiplication symbol rather than the letter x in your answer.

What is the electron configuration of a sulfur atom in the ground state?