Give reason: (a) Rusting of iron is a chemical change but magnetizing and demagnetizing of iron is
a physical change.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign