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mixas84 [53]
3 years ago
8

Light of a certain energy shines on a metal and causes electrons to be emitted.

Chemistry
2 answers:
sashaice [31]3 years ago
8 0

your answer is: the use of that light has a lower frequency

Inessa [10]3 years ago
6 0

Light of certain energy shines on a metal and causes electrons to be emitted. Based on the research of Albert Einstein, the change that would most likely result in stopping the emission of electrons from this metal is to coat the metal.

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What is the mass of 5.00 moles of KaS04?
Varvara68 [4.7K]

Answer: D

Explanation:

I assume you meant \text{K}_{2}\text{SO}_{4}.

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  • The atomic mass of oxygen is 15.9994 g/mol.

So, the formula mass of potassium sulfate is 2(39.0983)+32.065+4(15.9994)=174.2592 g/mol.

So, 5.00 moles have a mass of (5.00)(174.2592), which is about <u>870 g</u>

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3 years ago
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TiliK225 [7]

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3 years ago
What is the compound of KCN called
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Potassium Cyanide, is the compound of KCN.
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Wittaler [7]

Answer 1:

This is an example of successful adaptive mutation. Adaptive mutations actually happen because of high levels of stress in the organism's environment caused by the same stressor/s. Here, lots of rabbits being excessively cold all the time due to environment changes caused a lot of extra stress and over time, they successfully mutated to adapt to their environment.

Answer 2:

The answer should be the 4th one. A mutation that doesn't work doesn't always fully go away, but it will become much less common.

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