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3 years ago

An atom that has one or two valence electrons is most likely to be - Nonreactive only

Chemistry

1 answer:

meriva3 years ago

4 0

Answer:

C) Highly reactive

Explanation:

An atom with one or two valence electrons more than a closed shell is highly reactive, because the extra valence electrons are easily removed to form a positive ion

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balu736 [363]

Answer:

Explanation:

Option B is the correct answer

8 0

2 years ago

Read 2 more answers

Unit: Chemical Quantities

Vaselesa [24]

Answer:

(See explanation for further details)

Explanation:

1) The quantity of moles of sulfur is:

$n = \frac{1.20\times 10^{24}\,atoms}{6.022\times 10^{23}\,\frac{atoms}{mol} }$

$n = 1.993\,moles$

2) The number of atoms of helium is:

$x = (1.5\,moles)\cdot \left(6.022\times 10^{23}\,\frac{atoms}{mole} \right)$

$x = 9.033\times 10^{23}\,atoms$

3) The quantity of moles of carbon monoxide is:

$n = \frac{4.15\times 10^{23}\,molecules}{6.022\times 10^{23}\,\frac{molecules}{mol} }$

$n = 0.689\,moles$

4) The number of molecules of sulfur dioxide is:

$x = (2.25\,moles)\cdot \left(6.022\times 10^{23}\,\frac{molecules}{mole} \right)$

$x = 1.355\times 10^{24}\,molecules$

5) The quantity of moles of sodium chloride is:

$n = \frac{2.4\times 10^{23}\,molecules}{6.022\times 10^{23}\,\frac{molecules}{mol} }$

$n = 0.399\,moles$

6) The number of formula units of magnesium iodide is:

$x = (1.8\,moles)\cdot \left(6.022\times 10^{23}\,\frac{f.u.}{mole} \right)$

$x = 1.084\times 10^{24}\,f.u.$

7) The quantity of moles of potassium permanganate is:

$n = \frac{3.67\times 10^{23}\,f.u.}{6.022\times 10^{23}\,\frac{f.u.}{mol} }$

$n = 1.214\,moles$

8) The number of molecules of carbon tetrachloride is:

$x = (0.25\,moles)\cdot \left(6.022\times 10^{23}\,\frac{molecules}{mole} \right)$

$x = 1.506\times 10^{23}\,molecules$

9) The quantity of moles of aluminium is:

$n = \frac{3.67\times 10^{23}\,atoms}{6.022\times 10^{23}\,\frac{atoms}{mol} }$

$n = 0.609\,moles$

10) The number of molecules of oxygen difluoride is:

$x = (3.52\,moles)\cdot \left(6.022\times 10^{23}\,\frac{molecules}{mole} \right)$

$x = 2.120\times 10^{24}\,molecules$

3 0

3 years ago

What happens to the water and oil mixture when air is introduced

Amanda [17]

well, the oil will come up on the surface of the water and lay there but introducing air does not do much. hope that helps

4 0

3 years ago

What are three limitations of current cloaking technology.

kirill [66]

Explanation:

1.undetectable to electromagnetic waves

2.hiding an object from an illumination containing diffre t wave lengths become difficult as the object sizes grow.

3. reduce the scattering by two orders.

4 0

3 years ago

An inexpensive and accurate method of measuring the quantity of electricity flowing through a circuit is to pass the current thr

Paha777 [63]

Total of 127.013 C of charge is passed

Given

weight of Ag solution before current has passed = 1.7854 g

weight of Ag solution after current has passed = 1.8016 g

Molecular mass of Ag = 107.86 g

Faraday's Constant = 96485

First of all we have to apply Faraday's First Law of Electrolysis i.e

m = ZQ

where

Z is propotionality constant (g/C)

Q is charge (C)

Hence,

Z = Atomic mass of substance/ Faraday's Constant

= $\frac{107.86 g}{96485 C}$

= 0.0011178 g/C

Now ,

change in mass before and after the passing of current (Δm)

Δm = 1.8016g-1.7854g

= 0.0162g

Now amount of coulombs passed = $\frac{0.142g}{0.0011178 g/C }$

amount of coulombs passed = 127.03524 C

Thus from the above conclusion we can say that amount of coulombs have passed is 127.03524 C

Learn more about Electrolysis here: brainly.com/question/16929894

#SPJ4

7 0

2 years ago