subject
Chemistry, 27.11.2019 01:31 25linm

Which of the following processes have a ? s > 0?

2hcl(g) ? h2(g) + cl2(l)
2nh3(g) + co2(g) ? nh2conh2(aq) + h2o(l)
lithium fluoride forms from its elements
cesium chloride dissolves in pure water
all of the above processes have a ? s > 0

ansver
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 08:00, katelyn0579
Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely. analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?
Answers: 1
image
Chemistry, 22.06.2019 09:00, ale2035
What is the empirical formula for c4h8o2
Answers: 1
image
Chemistry, 22.06.2019 12:00, gdog5644
Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~
Answers: 1
image
Chemistry, 22.06.2019 18:00, sandeebassett3
Mercury turns to vapor at 629.88 k how much heat is lost 175 g of mercury vapor at 650 current condenses to a liquid at 297 ca mercury turns to weber at 629.88 kelvin how much he is lost 175 g of mercury vapor and 650 coming condensers to liquidate 297 kevin
Answers: 2
You know the right answer?
Which of the following processes have a ? s > 0?

2hcl(g) ? h2(g) + cl2(l)
2n...

Questions in other subjects:

Konu
Chemistry, 06.12.2021 22:00