How many valence electrons does an atom of the halogen family have?

Ammonium nitrite undergoes decomposition to produce only gases as shown below. nh4no2 (s) → n2 (g) + 2h2o (g) how many liters of gas will be produced by the decomposition of 32.0 g of nh4no2 at 525°c and 1.5 atm?

Which of the following is the correctly balanced chemical equation for the reaction of Ca (OH) 2 and HNO3? Ca (OH) 2 + HNO, → Ca++NO; Ca (OH) 2 + 2HNO, → 2H2O+2NO- Ca (OH) 2 + 2HNO, →H, O+CaNO, Ca (OH) 2 + 2HNO, → 2H2O + Ca (NO3) 2

Does heat written as a reactant indicate an endothermic or exothermic process

Hooke spent most of looking at cells of what

Achieving a balanced diet is best done by a. eating nothing but fruits. b. getting the right number of Calories each day. c. eating at least one item from each food group daily. d. getting 100% of your calcium requirements each day.

Define chemistry in relation to biology and physics

If you have 39 g of sodium azide in an air bag [2nan3 (s) - > 2na (s) + 2n2 (g) ], then how many molecules of nitrogen gas will it make at stp?

If 1 mol of a gas in a container occupies a volume of 12 l at a pressure of 1 atm, what is the temperature of the gas in kelvins?

200 lb/in" = ? tons/ft?

What variable is not used in the combined gas law