If 10g of KCIO3 dissolve in 100g of water at 30 degrees C, what type of solution is it?

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Ответ:

liljobe8973

04.12.2021

Chemistry

The measure of angle CDA is $27.6\°$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABF

Applying Pythagoras Theorem

$A.F^{2}=6.5^{2}-6^{2}$

$A.F^{2}=6.25$

$A.F=2.5\ cm$

In the right triangle CED

$CE=6\ cm$

$ED=23-(9+2.5)=11.5\ cm$

tan(

substitute the values

tan(

Abcd is a trapezium work out the size of angle cda.

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