Chemistry, 14.04.2020 21:58 leilakainani26
A 40.0-g sample of aluminum at 91.5 degrees C is added to 31.2 g of water that is initially at 23.00 degrees C. Use the specific heats given in your book, calculate the final temperature of both the water and the metal.
Answers: 2
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 09:30
What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
Answers: 2
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
A 40.0-g sample of aluminum at 91.5 degrees C is added to 31.2 g of water that is initially at 23.00...
Mathematics, 05.09.2019 09:10
Mathematics, 05.09.2019 09:10
Mathematics, 05.09.2019 10:10
English, 05.09.2019 10:10
English, 05.09.2019 10:10
Social Studies, 05.09.2019 10:10
Health, 05.09.2019 10:10
Health, 05.09.2019 10:10
History, 05.09.2019 10:10
Mathematics, 05.09.2019 10:10
History, 05.09.2019 10:10
Business, 05.09.2019 10:10
Mathematics, 05.09.2019 10:10