What is the circumference of the circle? Use StartFraction 22 over 7 EndFraction for Pi.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy