The 54.9-g sample of the compound X2O7 contains 33.6 g of oxygen atoms. What is the molar mass of element X?

Boyle's law relates the volume and pressure of an ideal gas at two different conditions as V1P1 = V2P2. If the volume of an ideal gas is 2 L at 3 atm, what volume is it at 4 atm?

How many moles of KCIO3 most decompose to form 13.0 moles of potassium chloride?

According to the steps of problem-solving, which of the items below is out of order? A. Choose the specific tools to use. B. Check and format. C. Set up the problem, estimate, and calculate. D. Determine the method of solution.

Andi performs the calculation that is shown below. (2.06) (1.743) (1.00) How should the answer be reported using the correct number of significant figures? A.) 3.59 B.) 3.591 C.) 3.6 D.) 4

Explain the relationship between a mole of a substance and avogadros constant

This chart shows discrpitions of the atoms for four different substances. Which substance is a solid

What is habitat destruction?

Nancy wants to find out how the steepness of a hill's slope affects the amount of soil that erodes from it. She has soil, a long pan, and a pile of books with which to build a model hillside. She has a watering can to model rainfall.

What is the function of the ribosome

How much energy, in joules, does 150.0 g of water with an initial temperature of 25 C need to absorb be raised to a final temperature of 75 C