Consider the following reaction: 2 Mg + O2 → 2 MgO △H rxn = -1203 kJCalculate the amount of heat in kJ associated with complete reaction of 4 moles of Mg.

Which one of the following species has the electron configuration of 1s22s22p6? 1.   Na+ 2.   O2- 3.   F-

Gas density can be calculated by dividing the mass of gas by its volume. If you took a balloon of gas and then warmed the balloon in a sunny window, what can now be said about the density of the gas in the balloon?

Which is a spectator ion from the following complete ionic equation:H+ (aq) + Br- (aq) + K+ (aq) + OH- (aq) → H2O (l) + K+ (aq) + Br- (aq)

Divers often inflate heavy duty balloons attached to salvage items on the sea floor. If a balloon is filled to a volume of 3.00 L at a pressure of 2.50 atm, what is the volume of the balloon when it reaches the surface at 1 atmosphere?

Given the balanced equation CH4 + 2 O2 → CO2 + 2 H2O, which of the following is NOT a correct conversion factor?

An atom that has the same number of neutrons asB56138a is:

Consider the following equation: CO + 2 H2 → CH3OH △H rxn = -128 kJCalculate the amount of heat in kJ associated with complete reaction of 8.08 g H2

Given that 4 NH3 + 5 O2 → 4 NO + 6 H2O, when 4.50 mol of H2O are formed, the amount of NO formed is:

The correct multiplier for the prefix micro is: