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3 years ago

Why is the equation 4Al+302>2Al203 balanced

Chemistry

1 answer:

cestrela7 [59]3 years ago

8 0

Answer:

It's coefficient to the front of each element that requires it.

Explanation:

It is coefficient to the front of each element or compound that requires it. Essentially you are multiplying the amount of atoms or compounds on one side to match the amount on the other side.

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___ AgI(s) + ___ Fe2(CO3)3(aq)→ ___ FeI3(aq) + ___ Ag2CO3(s)

Burka [1]

Answer:

Explanation:

8 0

3 years ago

Of the following compounds, which would be the most effective in lowering the melting point of ice on roads? a) CaCl2 b) NaCl c)

zmey [24]

Potassium as it's more reactive than the other two

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4 years ago

1.24 grams of magnesium phosphate tribasic dissolved in 1 L of lemon juice. What is the Ksp of the magnesium phosphate tribasic

vivado [14]

<u>Answer:</u> The solubility product of magnesium phosphate tribasic is $2.52\times 10^{-10}$

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

Given mass of magnesium phosphate = 1.24 g

Molar mass of magnesium phosphate = 262.85 g/mol

Volume of solution = 1 L

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{1.24g}{262.85g/mol\times 1}\\\\\text{Molarity of solution}=4.72\times 10^{-3}M$

The equation for the ionization of the magnesium phosphate is given as:

$Mg_3(PO_4)_2\leftrightharpoons 3Mg^{2+}+2PO_4^{3-}$

Expression for the solubility product of $Mg_3(PO_4)_2$ will be:

$K_{sp}=[Mg^{2+}]^3[PO_4^{3-}]^2$

We are given:

$[Mg^{2+}]=(3\times 4.72\times 10^{-3})=1.416\times 10^{-2}M$

$[PO_4^{3-}]=(2\times 4.72\times 10^{-3})=9.44\times 10^{-3}M$

Putting values in above expression, we get:

$K_{sp}=(1.416\times 10^{-2})^3\times (9.44\times 10^{-3})^2=2.52\times 10^{-10}$

Hence, the solubility product of magnesium phosphate tribasic is $2.52\times 10^{-10}$

4 0

3 years ago

What is a by-product of a nuclear power plant?

Mariana [72]

Answer:

There are four categories of byproduct material: Radioactive material that results from the fissioning, or splitting apart, of enriched uranium or plutonium in nuclear reactors. Examples include cobalt-60, cesium-137 and iridium-192. Tailings or waste produced by processing uranium or thorium from ore.

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3 years ago

Metals have special bonds, between atoms. The valence electrons are mobile and are shared by all metal atoms present.

lys-0071 [83]

Answer:

High conductivity

Explanation:

Metals exhibit high conductivity due to the mobility of valence electrons.

8 0

3 years ago