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Darina [25.2K]
3 years ago
15

What is the mass of an atom with 15 neutrons and 13 electrons ?

Chemistry
1 answer:
slava [35]3 years ago
4 0
The mass would be 28. The mass of an atom equals the number of neutrons and protons added together. In this case, they do not say the protons. But we must use our inside knowledge to know that the number of protons equals the number of electrons. Thus, your number of protons would be 13
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What are the 5 principles of kinetic molecular theory?
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3 years ago
_______ is the process in which light energy is transformed into food energy. A.life B.photosynthesis C.abiotic D.biotic
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Answer:

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2 years ago
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Can someone help me with questions 4-5 <br> 21 points
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8 0
3 years ago
The value of the solubility product constant for Ag2CO3 is 8.5 × 10‒12 and that of Ag2CrO4 is 1.1 × 10‒12. From this data, what
Lena [83]

Answer:

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For the reaction    Ag2CO3(s) + CrO42‒(aq) → Ag2CrO4(s) + CO32‒(aq)

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and the Ksp given are

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Ag₂CrO₄   ⇒  2 Ag⁺(aq)+ CrO₄²⁻(aq)   Ksp₂ = (Ag⁺)²(CrO₄²⁻)

Where (...) indicate concentrations M

Notice if we divide the expressions for Ksp we get:

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7 0
3 years ago
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strojnjashka [21]

Answer:

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