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elena-s [515]
3 years ago
5

HELP I NEED HELP!!! Please I have 5 minutes left

Chemistry
1 answer:
AveGali [126]3 years ago
4 0

Answer:

Engineering, I believe

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Soil
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Many esters have characteristic odors. Methyl salicylate exhibits a pleasant wintergreen odor. This ester can be prepared from s
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Methanol would be used as a reagent in excess, since it is a very low-cost solvent. For product isolation, the first thing to do is remove the methanol through a distillation process. The residue produced can be dissolved in diethyl ether. Using a NaHCO₃ solution, extraction is performed. When it separates into two phases, the product will be in the ether and the reagent in the aqueous phase. The ether can also be removed by distillation, and at the end of this process you will have the product you want.

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2 years ago
What mass of solid lead would displace exactly 234.6 liters of water?
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The mass of solid lead would displace exactly 234.6 liters of water should be <span>2,674,440</span>
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2 years ago
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How many tons of zinc can be obtained from 976 tons of zinc ore that is 78.0% zinc carbonate?
kramer
First, calculating the amount of zinc carbonate by multiplying the given mass of the ore by the percent zinc carbonate. 
                          mass of zinc carbonate = (976 tons)(0.78) 
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Then, calculate for %Zn in zinc carbonate
                           %Zn = ((65.38) / (125.39)) x 100%
                                          % Zn = 52.141%
tons of Zn from the sample,
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3 years ago
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A little boy places an ice cube in his hot bowl of stew and then walks out of the room. When he returns, the ice cube is gone.
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b

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the ice melted

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3 years ago
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