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3 years ago

Write the solubility product expression for the decomposition of Ag2CO3

Chemistry

1 answer:

snow_lady [41]3 years ago

8 0

Answer:

$Ksp=[Ag^+]^2[(CO_3)^{-2}]$

Explanation:

Hello,

In this case, we should start by writing the equilibrium dissociation of silver carbonate as:

$Ag_2CO_3(s)\rightleftharpoons 2Ag^+(aq)+(CO_3)^{-2}(aq)$

In such a way, by means of the law of mass action for heterogeneous equilibrium (as silver carbonate is solid), we represent the solubility product expression as shown below:

$Ksp=[Ag^+]^2[(CO_3)^{-2}]$

Best regards.

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How is it possible to have thousands of different proteins when there are only 20 different amino acids?

STatiana [176]

Hi there!

Although there are only 20 amino acids, these amino acids can combine into an innumerable amount of combinations to form different and unique proteins.

In case that doesn't make sense to you, I'll provide you with an analogy. You could be provided with 20 different LEGO bricks to work with. While there may only be 20 bricks, these bricks can combine into a vast amount of different formations, structures, etc. Amino Acids work in the same way.

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3 years ago

PbO2 + 4HCl --- PbCl2 + Cl2 + 2H2O who buys electrons and who loses electrons?

SIZIF [17.4K]

Answer: Electrons are taken up by $PbO_2$ and they are lost by $HCl$

Explanation:

Redox reaction is defined as the reaction in which oxidation and reduction take place simultaneously. It is also called the reaction where the exchange of electrons takes place.

An oxidation reaction is defined as the reaction in which a chemical species loses electrons takes place. In this reaction, the oxidation state of a substance gets increased.

A reduction reaction is defined as the reaction in which a chemical species gains electrons takes place. In this reaction, the oxidation state of a substance gets reduced.

For the given chemical reaction:

$PbO_2+4HCl\rightarrow PbCl_2+Cl_2+2H_2O$

The half-reactions for this redox rection follows:

Oxidation half-reaction: $2HCl\rightarrow ClO_2 + 2e^-$

Reduction half-reaction: $PbO_2+2e^-\rightarrow PbCl_2$

Hence, electrons are taken up by $PbO_2$ and they are lost by $HCl$

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3 years ago

18.A 2.50 L sample of dry air in a cylinder exerts a pressure of

Vlada [557]

Answer:

$\boxed{\text{7.50 L}}$

Explanation:

The temperature and amount of gas are constant, so we can use Boyle’s Law.

$p_{1}V_{1} = p_{2}V_{2}$

Data:

$\begin{array}{rclrcl}p_{1}& =& \text{3.00 atm}\qquad & V_{1} &= & \text{2.50 L} \\p_{2}& =& \text{1.00 atm}\qquad & V_{2} &= & ?\\\end{array}$

Calculations:

$\begin{array}{rcl}3.00 \times 2.50 & =& 1.00V_{2}\\7.500 & = & 1.00V_{2}\\V_{2} & = &\textbf{7.50 L}\\\end{array}\\\text{The volume of the gas is } \boxed{\textbf{7.50 L}}$

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3 years ago

The equation X + Y yields

masha68 [24]

Most likely the equation yields a new compound XY. This is a synthesis reaction. Synthesis reaction is a reaction where two or more substances combine to form a new compound. It is a reaction which releases energy in the form of heat and light. Therefore, it is an exothermic reaction.

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3 years ago

How many atoms are in the outer-most shell in order for it to be stable?

aksik [14]

Answer:

8 Electrons

Explanation:

Got it from siri lol :) Have a good day.

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3 years ago