3 years ago

When a substance is added to water, bubbles form. How can you confirm the type of change that took place?

1 answer:

4 0

A
BRAINLIEST PLZ ❤️❤️

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LuckyWell [14K]

Answer:

What datatable? Picture please!

Explanation:

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3 years ago

Usimov [2.4K]

Answer:

The answer is "0.0000190 and 2.7 J".

Explanation:

$\to P_4=\frac{e^{-\beta}(4+\frac{1}{2}) hev}{2vb}\\\\$

$=\frac{e^{-9(1.35)}}{0.278v}\\\\=\frac{e^{-12.5}}{0.278}\\\\=\frac{0.000005285}{0.278}\\\\=0.0000190$

Given:

$h=6.626 \times 10^{-34}\\\\c=3\times 10^{10}\\\\v=558\ cm^{-1}\\\\K=1.38 \times 10^{-23}\\\\ T=298\\\\$

$E=\frac{hcv}{KT}\\\\$

by putting the value into the above formula so, the value is 2.7 J

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3 years ago

Drupady [299]

151.55 x 4 you have to add the molar masses for each element together.

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3 years ago

Andrews [41]

I think that true!!!

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3 years ago

Soloha48 [4]

Convection is when cool air sinks and warm air rises. i am not 100% sure though

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3 years ago