3 years ago

Which of the following is NOT a region of the Sun? a Deuterium nucleus b The core c The convective zone d The visible surface

Chemistry

2 answers:

lianna [129]3 years ago

8 0

Answer:

Deuterium its hydrogen

otez555 [7]3 years ago

5 0

Answer:

A Deterium nucleus

Explanation:

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How many unpaired electrons in ge.

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An example of a colloid which is composed of a liquid dispersed in a gas would be

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3 years ago

An element has two isotopes, A and B, with mass numbers of 32.0 and 33.0 respectively. The relative atomic mass is 32.3. The per

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d) A - 70% B - 30%

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x (32.0) + (1−x) (33.0) = 32.3

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3 years ago

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the solubility product Ag3PO4 is: Ksp = 2.8 x 10^-18. What is the solubility of Ag3PO4 in water, in moles per liter?

guapka [62]

Answer : The solubility of $Ag_3PO_4$ in water is, $1.8\times 10^{-5}mol/L$

Explanation :

The solubility equilibrium reaction will be:

$Ag_3PO_4\rightleftharpoons 3Ag^++PO_4^{3-}$

Let the molar solubility be 's'.

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ag^{+}]^3[PO_4^{3-}]$

$K_{sp}=(3s)^3\times (s)$

$K_{sp}=27s^4$

Given:

$K_{sp}$ = $2.8\times 10^{-18}$

Now put all the given values in the above expression, we get:

$K_{sp}=27s^4$

$2.8\times 10^{-18}=27s^4$

$s=1.8\times 10^{-5}M=1.8\times 10^{-5}mol/L$

Therefore, the solubility of $Ag_3PO_4$ in water is, $1.8\times 10^{-5}mol/L$

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2 years ago