Propane, cahs, is the fuel used in barbeque gas bottles. the complete combustion of 12.0 g of propane produces 547 kj of heat energy a) write a thermochemical equation for the combustion of propane [4 marks] b) calculate the enthalpy of combustion of propane gas in kj/mol. 3 marks] identify the reductant in the combustion reaction and write the half equation for the reaction that happens to it

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction

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