What is the freezing point of water if 15.0 g of NaCl is dissolved in 100. g of water? (Kf of water = 1.86 K-kg/mol)
a
255 K
b 263 K
C273 K
d 268K
e 277 K

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

Enzymes affect the reactions in living cells by changing the

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.