2Fe(s)+3 Cl 2 (g) 2 FeCl 3 (s) Delta H^ =-800,0 kJ/mol Si(s)+2 Cl 2 (g) SiCl 4 (s) Delta H^ =-640.1 KJ/mol Determine the enthalpy ( in kJ/mol) for the reaction 3 SiCl 4 (s)+4 Fe(s) 4 FeCl 3 (s)+3 Si(s)

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol