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4 years ago

O, li, c which electrons experience the greatest effective nuclear charge? express your answer as a chemical formula.

1 answer:

5 0

<span>The effective nuclear charge of an atom = total electrons - inner electrons For O, ENC = 8 - 2 = 6 For Li, ENC = 3 - 2 = 1 For C, ENC = 6 - 2 = 4 The electrons in O experience the greatest effective nuclear charge and that is why O is smaller than C (which is smaller than Li).</span>

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30 points - plz help

Brrunno [24]

Answer:

3.0 L

Explanation:

v1 x t2 =v2 x t1

3 0

4 years ago

Read 2 more answers

Which of these statements would be true if the water molecule was linear instead of bent? Check all that apply.

Katen [24]

If the water molecule was linear instead of bent the water would no longer produce hydrogen bonds.

<u>Explanation:</u>

Yes, If the water molecule was linear instead of bent the water would no longer produce hydrogen bonds.
The water would no longer generate hydrogen bonds.
It will lose its polar features and nearly all of its features will change such as boiling point, water tension and solubility.
It would be more like to gas, rather than liquid.
If the water was in the linear, the water would have all the features and it would produce the hydrogen bonds.

4 0

3 years ago

Read 2 more answers

What expression approximates the volume of O2 consumed, measure at STP, when 55 g of Al reacts completely with excess O2?2 Al(s)

nikdorinn [45]

Answer : The volume of $O_2$ consumed are, $0.75\times 2\times 22.4$ L.

Explanation :

The balanced chemical reaction will be:

$4Al(s)+3O_2(g)\rightarrow 2Al_2O_3(s)$

First we have to calculate the moles of Al.

$\text{Moles of }Al=\frac{\text{Mass of }Al}{\text{Molar mass of }Al}$

Molar mass of Al = 27 g/mole

$\text{Moles of }Al=\frac{55g}{27g/mol}=2mole$

Now we have to calculate the moles of $O_2$ .

From the reaction we conclude that,

As, 4 mole of Al react with 3 moles of $O_2$

So, 2 mole of Al react with $\frac{3}{4}\times 2=0.75\times 2$ moles of $O_2$

Now we have to calculate the volume of $O_2$ consumed.

As we know that, 1 mole of substance occupies 22.4 liter volume of gas.

As, 1 mole of $O_2$ occupies 22.4 liter volume of $O_2$ gas

So, $0.75\times 2$ mole of $O_2$ occupies $0.75\times 2\times 22.4$ liter volume of $O_2$ gas

Therefore, the volume of $O_2$ consumed are, $0.75\times 2\times 22.4$ L.

3 0

3 years ago

How many moles of each element are in 1 mole of ammonium nitrate?

liubo4ka [24]

Answer:

<h2><u>Of moles of NH4NO3 = 16/80 i.e. 0.2 moles of Ammonium Nitrate. 1 molecule of NH4NO3 contains 1 atom of N. Hence, 1 mole of NH4NO3 would contain 1 mole of Nitrogen atoms and therefore 0.2 moles of NH4NO3 should contain 0.2 moles of Nitrogen atoms</u>.</h2>

Explanation:

3 0

3 years ago

Elements placed in the same group have similar chemical properties. Which one of the following has different chemical property?

Westkost [7]

Answer:

Na has the different chemical property

3 0

3 years ago