QUICK CHECK
Identify which properties could correspond to solids, plasmas, or both.
maintain a unique shape.
particles collide infrequently with other particles.
particles have very high velocities.
can conduct electricity.
contain protons.
typically have a low temperature.
structure has long-range order.
DONE

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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

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.