According to its periodic table entry, how many electrons does kr have in its valence level?
2
8
18
7

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

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

Calculate the concentration of all species in a 0.165 m solution of h2co3.