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3 years ago

Please help me with chemistry. Thanks

Chemistry

2 answers:

il63 [147K]3 years ago

7 0

Constant:
Test tubes

Independent:
volume of gas

Dependent:

amount of H2O2

olga2289 [7]3 years ago

6 0

Hello there!

A constant stays the same so is the test tube.
An independent variable is changed to test the effects so is the volume of gas.
A dependent variable is being tested and so is the amount of H2O2.

Hope This Helps You!
Good Luck :)

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4 years ago

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Putting values in above equation, we get:

$4.30\times 10^{-19}=\frac{6.625\times 10^{-34}J.s\times 3\times 10^8m/s}{\lambda }\\\\\lambda=\frac{6.625\times 10^{-34}J.s\times 3\times 10^8m/s}{4.30\times 10^{-19}}=4.62\times 10^{-7}m=462nm$

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The calculated wavelength lies in the above range. So, the color of the cesium flame is 462 nm

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3 years ago