How many moles of sodium ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05g/mol.

What volume of air at 25°C and 1.00 atm can he stored in a 10.0 L high-pressure air tank if compressed to 25°C and 175 atm?

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be predicted based on general periodic trends.

What can be explained by the Arrhenius theory?

Determine the concentration of an unknown acid or base in a neutralization reaction

Which statement describes potential energy? A. energy of motion B. stored energy C. energy due to heat D. used energy

If you have 60 grams of MgCl2 in 5 liters of solution, what is the molarity of this solution?

Is evaporation/condensation a physical or chemical change? Explain

Would the two as yet undiscovered elements A+1 and D+2 react?

Ammonium perchlorate is a powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen gas, chlorine gas, oxygen gas and water vapor, releasing a great deal of energy.

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SeCl2.