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2 years ago

15

Gold is a precious substance explain how you would classify gold

1 answer:

vodomira [7]2 years ago

5 0

I would classify gold as an underground treasure, high in value that can be issued with sentimental value.

Or in smaller kid langue...

I would classify gold as an underground metal that can be used on jewelry or to make something that could mean something to someone.

If your in 2-4, I would use the second one. If you are in a grade higher than 4th, go ahead and blow your teachers mind by writing the first one. PLEASE do not copy it word for word! Make it your own so you do not plagiarise!

Plagiarise- "copy from {someone} and pass it off as one's own." (google web)

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Calculate the solubility of ( = ) in moles per liter. Ignore any acid–base properties. s = mol/L Calculate the solubility of ( =

BaLLatris [955]

This is an incomplete question, here is a complete question.

Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties.

CaCO₃, Ksp = 8.7 × 10⁻⁹

Answer : The solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

Explanation :

As we know that CaCO₃ dissociates to give $Ca^{2+}$ ion and $CO_3^{2-}$ ion.

The solubility equilibrium reaction will be:

$CaCO_3\rightleftharpoons Ca^{2+}+CO_3^{2-}$

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ca^{2+}][CO_3^{2-}]$

Let solubility of CaCO₃ be, 's'

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

$K_{sp}=s^2$

$8.7\times 10^{-9}=s^2$

$s=9.33\times 10^{-5}mol/L$

Therefore, the solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

4 0

2 years ago

A sample of water at 20 degrees c contains what bonds

vladimir2022 [97]

Covalent and hydrogen bonds

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2 years ago

How do changes to genes affect the traits of an organism?

vodka [1.7K]

Changes to genes can affect the phenotypic traits of an organism, making them look differently.

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2 years ago

Identify the substances that will appear in the equilibrium constant expression for the equation: 2Ag+(aq)+Zn(s)<->Zn2+(aq

Simora [160]

Hey there!

We Know that:

2 Ag⁺(aq) + Zn(s) <-> Zn²⁺(aq)+2 Ag(s)

The equilibrium expression for the reaction is:

Kc = [ Zn⁺² ] / [Ag⁺ ]²

Hope that helps!

8 0

2 years ago

Read 2 more answers

3. How can you decrease the pressure of a gas in a container without changing the volume of the gas?

inna [77]

Answer:

reduce the temperature of the gas

Explanation:

when you reduce the temperature of the gas the pressure will decrease

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2 years ago