2 years ago

HELPP "Can you seperate a mixture using solubility tests, if so, explain how."

Chemistry

2 answers:

OverLord2011 [107]2 years ago

8 0

Answer:

You can by using evaporation and filtration methods.

Explanation:

I hope this helps! Have a great rest of your day!

olganol [36]2 years ago

3 0

Answer:

yes you can by using filtration and evaporation

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The energy required to ionize boron is 801 kJ/mol. You may want to reference (Pages 93 - 98) Section 2.5 while completing this p

earnstyle [38]

Answer:

The frequency is $f = 2,01 * 10^{15} \ Hz$

Explanation:

From the question we are told that

The energy required to ionize boron is $E_b = 801 KJ/mol$

Generally the ionization energy of boron pre atom is mathematically represented as

$E_a = \frac{E_b}{N_A}$

Here $N_A$ is the Avogadro's constant with value $N_A = 6.022*10^{23}$

$E_a = \frac{801}{6.022*10^{23}}$

=> $E_a = 1.330 *10^{-18} \ J/atom$

Generally the energy required to liberate one electron from an atom is equivalent to the ionization energy per atom and this mathematically represented as

$E = hf = E_a$

=> $hf = E_a$

Here h is the Planks constant with value $h = 6.626 *10^{-34}$

$f = \frac{1.330 *10^{-18}}{ 6.626 *10^{-34}}$

=> $f = 2,01 * 10^{15} \ Hz$

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2 years ago

Imagine snow on top of a mountain. Describe at least two ways energy could be transferred as the seasons change?

Mademuasel [1]

Answer:

at summer season the snow will melt and will produce water and using generators we can produce electric energy and in spring and winter can produce electric energy also using the wind

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2 years ago

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An astronomer wants to study celestial objects with the shortest wavelengths. What kind of telescope should the astronomer use f

Leni [432]

Answer:

telescope

Explanation:

i took the test

8 0

3 years ago

ANSWERED