Which elements have similar behavior? barium silicon aluminum strontium osmium beryllium

Barium, beryllium, and Strontium

Explanation:

These 3 elements are located in the same group, which determines the number of valence electrons.

The valence electrons determine how reactive an element will be.    

A. →barium

B. silicon

C. aluminum

D. →strontium

E.osmium

F. →beryllium

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one state would change   like louisiana to texas. thats a change

explanation:

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :