The number of atoms in 5 moles of magnesium

A 24.1-g mixture of nitrogen and carbon dioxide is found to occupy a volume of 15.1 L when measured at 870.2 mmHg and 31.2oC. What is the mole fraction of nitrogen in this mixture?

How are the electron structures of boron (B) and aluminum (Al) similar?

A sample of oxygen at room temperature occupies a volume of 500. l at 1.75 atm. what would be the volume of this gas at 2.50 atm at the same temperature?

Lithium and potassium have similar chemical properties because the atoms of both elements have the same (1) mass number (2) atomic number (3) number of electron shells (4) number of valence electrons

A calibration curve relating absorbance (y) to concentration (x, measured in mol/L) of y = 0.36x-0.011 Use the calibration curve to determination of the concentration of a solution with an absorbance of 0.02.

A 20% solution of KCl has a mass of 400 g what mass of KCl is contained in this solution

A fire extinguisher is labeled b-i. what type of fire will be put out by this extinguisher?

The capacity of an eye dropper would be a few a kilometers be leiters C deciliters d milliluters

2C 2 H 6 + 7O 2 * **>4CO 2 + 6H 2 O if 7.0 g of C 2 H 6 react with 18 g of O 2, how many grams of water will be produced

22 days converted into how many seconds?