Chemistry, 22.06.2020 17:57 jetcythaop6qlax
Commercially available hot packs are simple in design: a pouch with water on one side, isolated by a barrier from a specific salt on the other side. When the barrier is broken, the salt and water mix and the solution becomes hot. Select the statement that is true about the reaction occurring in hot packs. A. The hot pack absorbs heat from the environment.
B. The reaction between the salt and water is exothermic.
C. The reaction between the salt and water is endothermic.
D. The reaction between the salt and water is neither endothermic nor exothermic.
Answers: 1
Another question on Chemistry
Chemistry, 21.06.2019 22:30
Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l
Answers: 3
Chemistry, 22.06.2019 19:10
Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .
Answers: 2
Chemistry, 23.06.2019 01:00
An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds
Answers: 1
Chemistry, 23.06.2019 16:00
Aconversion factor is a ratio of equivalent values used to express the same units in different quantities
Answers: 3
You know the right answer?
Commercially available hot packs are simple in design: a pouch with water on one side, isolated by a...
Questions
Mathematics, 09.10.2020 16:01
Mathematics, 09.10.2020 16:01
History, 09.10.2020 16:01
Social Studies, 09.10.2020 16:01
Biology, 09.10.2020 16:01
English, 09.10.2020 16:01
