What is the standard enthalpy of reaction ΔH orxn for the following reaction using the standard enthalpies of formation provided ?
SiCl4(l) + 2H2(g) + O2(g) → SiO2 (s) + 4HCl(g) ΔHorxn = ?
ΔH°f(SiCl4) = -640.1 kJ/mol
ΔH°f(HCl) = -92.3 kJ/mol
ΔH°f(SiO2) = -910.9 kJ/mol
Determine the amount of heat (in kJ) given off when 1.26 x 10 4 g of NO2 are produced according to the equation:
2NO(g) + O2(g) → 2NO2(g) ΔHRXN = -114.6 kJ/mol
Give formulas for the following compounds:
The formula of the compound formed in the reaction between lithium and sulfur is
Which of the following compounds is incorrectly named?
(A) P2O5 is diphosphorus pentoxide
(B) N2O5 is dinitrogen pentoxide
(C) Si3N4 is trisilicon tetranitride
(D) CO2 is carbon dioxide
(E) S2Cl2 is disulfurous dichloride