Explain in terms of element classification, why K2O is an ionic compound

giving the incomplete equation 2N2O5 (g) which set of products completes and balances the incomplete equarion

N an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, which instrument would give the greatest precision?

Identify the single displacement reaction. C4H12 + 7O2 ⟶ 6H2O + 4CO2 2H2 + O2 ⟶ 2H2O Al2S3 ⟶ 2Al + 3S Cl2 + 2KBr ⟶ 2KCl + Br2

Consider the reaction n2o4 (g) →2no2 (g) where n2o4 is colorless and no2 is brown. at a temperature of 5∘c, the reaction is colorless at equilibrium. this indicates that the equilibrium constant for this reaction at this temperature is

When a substance cools down, is it releasing or absorbing energy?

18,754kg of methanol which has a density of 0.788g/cm3 what is the volume

How is enthalpy used to predict whether a reaction is endothermic or exothermic? A) When the enthalpy of the reactants is higher than the enthalpy of the products, the reaction is endothermic.

In a calorimetry experiment, it was determined that a 92.0 gram piece of copper metal released 1860 J of heat to the surrounding water in the calorimeter (qcopper = - 1860 J). If the final temperature of the copper metal-water mixture was 25.

If i walk 25 steps north than 75 steps south, what is my final position

At a different temperature (this means that Keq will be different than part a)), 6.0 mol of IF5 and 8.0 mol of I4F2 are placed in a 10.0 L container. At equilibrium, 6.0mol of I4F2 are left. Calculate the Keq for the new temperature.