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3 years ago

Describe the bonding in uranium.

Chemistry

1 answer:

ra1l [238]3 years ago

7 0

there is a covalent  bonding in uranium

hope this helps you xx

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What minimum mass of iron (II) nitrate must be added to 10.0 of a 0.0699 M phosphate solution in order to completely precipitate

ad-work [718]

Answer: The minimum mass of iron (II) nitrate that must be added is 0.188 grams

Explanation:

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

Molarity of phosphate solution = 0.0699 M

Volume of solution = 10 mL = 0.010 L (Conversion factor: 1 L = 1000 mL)

Putting values in above equation, we get:

$0.0699M=\frac{\text{Moles of phosphate solution}}{0.010L}\\\\\text{Moles of phosphate solution}=(0.0699mol/L\times 0.010L)=6.99\times 10^{-4}mol$

The given chemical equation follows:

$2PO_4^{3-}(aq.)+3Fe(NO_3)_2(aq.)\rightarrow Fe_3(PO_4)_2(s)+6NO_3^-(aq.)$

By Stoichiometry of the reaction:

2 moles of phosphate solution reacts with 3 moles of iron (II) nitrate

So, $6.99\times 10^{-4}mol$ of phosphate solution will react with = $\frac{3}{2}\times 6.99\times 10^{-4}=1.049\times 10^{-3}mol$ of iron (II) nitrate

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Molar mass of iron (II) nitrate = 180 g/mol

Moles of iron (II) nitrate = $1.049\times 10^{-3}$ moles

Putting values in above equation, we get:

$1.049\times 10^{-3}mol=\frac{\text{Mass of iron (II) nitrate}}{180g/mol}\\\\\text{Mass of iron (II) nitrate}=(1.049\times 10^{-3}mol\times 180g/mol)=0.188g$

Hence, the minimum mass of iron (II) nitrate that must be added is 0.188 grams

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4 years ago

How does heart failure affect the body?

anastassius [24]

It's D. Because all of that happens firstly yeah no oxygen but also no energy because there's no air going to the brain. since also your heart is not taking oxygen, or like not working, there is gonna be a massive build up!

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4 years ago

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Which coefficients balance the following equation?

IRISSAK [1]

Answer: D
2KClO3 = 2KCl + 3O2

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3 years ago

Explain why we can see a new moon AND a full moon

Mamont248 [21]

Answer:

So, a full moon rises early in the night and sets early in the morning, it is visible all night long. Contrarily, a new moon rises early in the morning (with the sun) and sets at night (with the sun), and is not visible at night, at all.

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3 years ago

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Is it possible to have more atoms on the product side of a chemical reaction than there are on the reactant side? Explain why or

Mice21 [21]

Answer:

No, you cannot.

Explanation:

Due to the Law of Conservation of Energy all chemical equations have to be balcned. The Law of Conservation of energy states that matter cannot be neither created nor destroyed. By having more atoms on either side, you are breaking this law.

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