13. How much heat is needed to raise 26 g of iron from 25.0°C to 45.0°C? 14 points
(The specific heat of iron is 0.11 J/gºC.)

What are the similarities of physical and chemical change ?

When microscope slides are stained to show blood cells, the small red blood cells that appear on the slides are much numerous than the large white blood cells. this supports the concept that

8. how much enthalpy/heat is transferred when 0.5113gof ammonia (nh3) reacts with excess oxygen according| to the following equation: 4nh3 +502 - 4n0+ 6h20ah = -905.4j