An atom has atomic number 11 and mass number 23. How many electrons does the atom have?

A sample of gas at 47°C and 1.03 atm occupies a volume of 2.20 mL. What would this gas occupy at 107°C and 0.789 atm

Choose all that apply ... What are the functions of corporate management? -oversee production -set objectives -set safety standards -administration -department directors -environmental supervision

How many moles of gas are present when you collect 35.83 mL of the gas over water at 25.3°C and 0.97 atm?

The partial pressure of a gas is a inversely proportional to the temperature of the gas. b. directly proportional to the volume of the gas. c. always constant during a chemical reaction. d. directly proportional to the number of moles of the gas. e.

One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 6.43 liters against a constant external pressure of 1.00 atm. how much work (in joules) is performed on the surroundings? ignore significant figures for this problem.

Assuming that air contains 78 percent N2, 21 percent O2 and 1 percent Ar, all by volume. How many molecules of each type of gas are present in 1.0 L of air at STP?

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.