Answers: 3
Chemistry, 21.06.2019 23:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.
Answers: 2
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 06:00
One does not belong why? ice, gold ,wood ,diamond and table salt
Answers: 1
Chemistry, 23.06.2019 07:20
F1.5 mol of nabh4 react, how many moles of b2h6 are formed? 2 nabh4(aq) + h2so4(aq) → 2 h2(g) + na2so4(aq) + b2h6(g)
Answers: 1
A 3.5 L container of nitrogen has a pressure of 4.5 atm. What volume would be necessary to decrease...
Mathematics, 03.02.2021 09:50
Biology, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
History, 03.02.2021 09:50
English, 03.02.2021 09:50
Health, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
Physics, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
English, 03.02.2021 09:50
Physics, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
Mathematics, 03.02.2021 09:50
Engineering, 03.02.2021 09:50
Social Studies, 03.02.2021 09:50