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ohaa [14]
3 years ago
12

Which elements are present in all organic compounds? 1. Hydrogen and oxygen 2. Nitrogen and Carbon 3. Nitrogen and oxygen 4. Hyd

rogen and Carbon
Chemistry
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

my answer is num:3 Hydrogen and oxygen.

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A mercury lamp emits radiation with a frequency of 5.62 x1024 Hz. Calculate the wavelength of
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Answer:

wavelength = 0.534×10⁻¹⁶ m

Explanation:

Given data:

Frequency of wave = 5.62 ×10²⁴ Hz

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Solution:

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wavelength = speed of photon / frequency

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3 years ago
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Murrr4er [49]

Answer:

Number of neutrons and stability

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Adding an extra neutron may or may not disrupt the strong force that much, and so the half-life and stability of the new isotope can be slightly different than its most stable one.

8 0
2 years ago
How does percent composition by mass contribute to writing a balanced equation?
Mariulka [41]

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mass composition is very essential in obtaining a balanced equation

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