Answers: 3
Chemistry, 22.06.2019 08:30
Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size
Answers: 1
Chemistry, 22.06.2019 13:00
Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?
Answers: 1
Chemistry, 22.06.2019 21:30
Describe at least two advantages and two disadvantages of using hydropower as a source of energy.
Answers: 2
Butane
methane
ethane
propane
...
methane
ethane
propane
...
Chemistry, 06.01.2020 17:31
Mathematics, 06.01.2020 17:31
History, 06.01.2020 17:31
Mathematics, 06.01.2020 17:31
Social Studies, 06.01.2020 17:31
Law, 06.01.2020 18:31
English, 06.01.2020 18:31