A bomb calorimeter contains 900.0 g of water after a 1.890 g sample of benzoic acid is burned (Heat of Reaction =−3227kJmol). If the temperature of the water increases 8.320∘C, what is the calorimeter constant in J∘C? The molar mass of benzoic acid is 122.12 g/mol.

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

What reaction is taking place? 02 + c3h8 = h20 + co2