subject
Chemistry, 04.05.2021 17:50 maria241432

Please help me. On a heating of solid W, a residue was formed which was orange when hot and turned yellow on cooling. The lime water formed a white precipitate I) Identify the cation and anion in Solid W II) Write an equation for the formation of white precipitate in lime water.​

ansver
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 20:40, Wolfiid
You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen
Answers: 2
image
Chemistry, 21.06.2019 22:30, tot92
Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown
Answers: 1
image
Chemistry, 22.06.2019 01:00, Nweze1760
What are the genotypic and phenotypic ratios
Answers: 2
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
You know the right answer?
Please help me. On a heating of solid W, a residue was formed which was orange when hot and turned...

Questions in other subjects:

Konu
French, 13.04.2021 01:30
Konu
Mathematics, 13.04.2021 01:30