Which of the following is an example of a neutralization reaction?
hcl (aq) + naoh (aq) --> h2o (l) + nacl (aq)
mg (s) + 2h2o (l) --> mg(oh)2 (aq) + h2 (g)
h2co3 (aq) --> h2o (l) + co2 (g)
pb(no3)2 (s) + 2nai (aq) --> pbi2 (s) + 2nano3 (aq)

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams