Allicin contains 59.9 g of carbon, 21.7 g of hydrogen, 24.4 g of oxygen, and sulfur. What is the mass percent of sulfur in a 162 g sample of the compound?"

Which of the following elements would be the most reactive? a. iodine b. silicon c. silver d. argon

How many moles are 1.20 x 1025 formula units of calcium iodide?

At standard temperature and pressure (0 ∘C and 1.00 atm), 1.00 mol of an ideal gas occupies a volume of 22.4 L. What volume would the same amount of gas occupy at the same pressure and 55 ∘C?

Calculate the molar mass of salicylic acid, c7h6o3.

A solution was indicated to have a pH value of 3.52. What is the (H+) of this solution?

Pieces of metal are welded together in an atmosphere of argon. Explain why an atmosphere of argon is used.

En que estado esta el nitrógeno en el cuerpo

Which sequence represents a correct order of historical developments leading to the modern model of the atom?

If you were designing a pot to cook spaghetti in, which parts would you make from good conductors of heat? which parts would you make from insulators? explain your answer.

1. Starting with 9.3 moles of O2, how many moles of H2S will be needed and how many moles of SO2 will be produced in the following reaction? SHOW YOUR WORK! 2 H2S + 3 O2 - > 2 SO2 + 2 H2O