Chemistry, 12.02.2022 14:00 PerfectMagZ
Soda and lime are added to a glass batch in the form of soda ash (Na2CO3) and limestone (CaCO3). During heating, these two ingredients decompose to give off carbon dioxide (CO2), the resulting products being soda and lime. Compute the masses of soda ash and limestone that must be added to 100 kg of quartz (SiO2) to yield a glass of composition 75 wt% SiO2, 15 wt% Na2O, and 10 wt% CaO
Answers: 1
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
Answers: 2
Chemistry, 22.06.2019 11:00
What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k
Answers: 3
Chemistry, 22.06.2019 13:10
The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent
Answers: 1
Chemistry, 22.06.2019 17:00
What is the approximate vapor pressure when the gas condenses at 70 degrees celsius
Answers: 2
Soda and lime are added to a glass batch in the form of soda ash (Na2CO3) and limestone (CaCO3). Dur...
Physics, 18.05.2021 03:40
Medicine, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Arts, 18.05.2021 03:40
Biology, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Computers and Technology, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Social Studies, 18.05.2021 03:40
Biology, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
Mathematics, 18.05.2021 03:40
English, 18.05.2021 03:40