Part II Physical Properties and Changes A. Heating Iodine Crystals Observations Initial matter at bottom of beaker Matter (and state) in the volume of the covered beaker Name of the process involved Matter (and state) at the bottom of evaporating dish Name of the process involved Classify the type of change Type of property observed

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

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

The same side of the moon always faces earth because the