2mg(s) + o2(g) → 2 mgo(s) δh = -1204 kj
determine which statement is true regarding the reaction above.
a) the reaction is endothermic; the products have a lower total bond energy than the reactants.
b) the reaction is endothermic; the products have a higher total bond energy than the reactants.
c) the reaction is exothermic; the products have a lower total bond energy than the reactants.
d) the reaction is exothermic; the products have a higher total bond energy than the reactants.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer