A lithium atom has an atomic number of 3 and a mass of 7. The number of electrons which it has in the 1st shell (principal energy level) is?

How many peaks will be present in a mass spectrum for brcl?

Why must you wear safety glasses at all times

What mass of carbon dioxide is produced upon the complete combustion of 26.5 L of propane (the approximate contents of one 5-gallon tank) ? Assume that the density of the liquid propane in the tank is 0.621 g/mL.

What group of elements are the most reactive group of conductive solids?

30 Which term represents a type of nuclear reaction? (1) condensation (2) vaporization (3) single replacement (4) natural transmutation

How to calculate average concentration

Suppose that you measure a pen to be 10.5 cm long. Convert this to meters.

How are amounts of hydrogen and oxygen gas made from the electrolytic decomposition of water related to the chemical formula of water?

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2 (l) → 2H2O (l) + O2 (g) ΔH = - 196 kJ Calculate the value of q (kJ) in this exothermic reaction when 3.

What is the concentration of hydronium in each of the following cases: [OH-] = 10-12 M? [OH-] = 10-2 M?