How many oxygen atoms are in 68.8mg na₂s₂o₃ 5h₂o

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

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules