What organisms appeared on earth first?
a). gastropods
b). horn corals
c). brachiopo...
Chemistry, 29.01.2020 09:05 flamingtacos4026
What organisms appeared on earth first?
a). gastropods
b). horn corals
c). brachiopods
d). crinoids
Answers: 3
Chemistry, 22.06.2019 22:00, jlegrand9098
4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.
Answers: 2
History, 16.06.2021 18:10
Mathematics, 16.06.2021 18:10
Mathematics, 16.06.2021 18:10
Mathematics, 16.06.2021 18:10