Which of the Following Reactions Corresponds to the Thermochemical Equation

question 74

Multiple Choice

Which of the following reactions corresponds to the thermochemical equation for the standard enthalpy of formation of solid strontium nitrate?

• A)Sr²⁺(aq)+ 2NO₃^-(aq)→ Sr(NO₃)₂(s)
• B)Sr(OH)₂(s)+ 2HNO₃(aq)→ Sr(NO₃)₂(s)+ 2H₂O(l)
• C)Sr(s)+ N₂(g)+ 3O₂(g)→ Sr(NO₃)₂(s)
• D)Sr(s)+ 2HNO₃(aq)→ Sr(NO₃)₂(s)+ H₂(g)
• E)Sr(s)+ 2N(g)+ 6O(g)→ Sr(NO₃)₂(s)

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Definitions:

IUPAC Name

The systematic naming convention for chemical substances assigned based on the structure of molecules, according to rules established by the International Union of Pure and Applied Chemistry.

Alkane

A saturated hydrocarbon with single bonds only, having the general molecular formula CnH2n+2, where n is the number of carbon atoms.

Molecular Formula

A notation showing the types and numbers of atoms in a molecule, without indicating their arrangement.

Ethyl

A functional group or moiety consisting of two carbon atoms and five hydrogen atoms (–C2H5), often derived from ethanol.