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Natalija [7]
3 years ago
14

The transfer of thermal energy for a warmer object too a cooler one. 10 points

Chemistry
1 answer:
erica [24]3 years ago
3 0

Answer: The movement of heat from a warmer object to a cooler one is called heat transfer

Explanation:

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If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9 g of silicon carbide is produced. What is the percent yiel
Molodets [167]

Answer: The percent yield of the reaction is 83.5 %

Explanation:

The given balanced equation is

SiO_2+3C\rightarrow SiC+2CO

SiO_2 is the limiting reagent as it limits the formation of product and C is the excess reagent.

According to stoichiometry :

60.08 g of SiO_2 produce = 40.11 of SiC

Thus 50.0 of SiO_2 will produce=\frac{40.11}{60.08}\times 50.0=33.4  of SiC

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Percent yield = \frac{\text {Experimental yield}}{\text {theoretical yield}}\times 100=\frac{27.9g}{33.4g}\times 100=83.5\%

Thus  percent yield of the reaction is 83.5 %

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Vlada [557]

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What happens when gasoline is used to power a vehicle?
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