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3 years ago

Describe the location of the positive charge of the atom in j. j. thomson’s plum pudding model.

Chemistry

2 answers:

Umnica [9.8K]3 years ago

5 0

Answer:

The positive charge of the atom in J.J. Thomson´s plum pudding model was all around like a cloud.

Explanation:

J.J Thomson´s plum pudding model quoted the atom was a positive cloud or a positive cake with electrons like balls in the middle of the cloud or cake, as you can see in the image below

katovenus [111]3 years ago

3 0

Thompson proposed a model (the plum pudding model) whereby the negatively charged corpuscles were distributed in a uniform sea of positive charge. In other words the positive charge was like the pudding and the negative charge were like raisins on the pudding.

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Predict the products and then balance the equation

Aneli [31]

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Here's the balanced equation for given Double displacement reaction ~

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The products fored are : Lead Iodide ( PbI2 ) and Potassium Nitrate ( KNO3 )

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2 years ago

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The vapor pressure of a liquid __________.

mash [69]

Answer:

Explanation:

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3 years ago

How do a strong electrolyte, weak electrolyte, and non-electrolyte differ in the number of ions each produces when dissolved in

Dmitrij [34]

Strong electrolytes are completely ionised in solution.
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3 years ago

Electrochemical cells can be used to measure ionic concentrations. A cell is set up with a pair of Zn electrodes, each immersed

Phantasy [73]

Answer:

the concentration of the solution is 0.00906 M

Explanation:

Given the data in the question;

we know that from Nernst Equation;

E = E⁰ - ((0.0592/n) logQ)

now, E₀ for concentration cell is 0

n for this redox is 2

concentration of the unknown solution is x

so we substitute

0.045 = 0 - ( 0.0592 / 2)log( x/0.300 ))

0.045 = -0.0296log( x/0.300 )

divide both side by 0.0296

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x/0.300 = $10^{-1.52$

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we cross multiply

x = 0.300 × 0.0301995

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3 years ago

Predict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:(a) |(b) Sr(c) K(d) N(e) S(f)

Pavel [41]

Answer:

(a) I⁻ (charge 1-)

(b) Sr²⁺ (charge 2+)

(d) N³⁻ (charge 3-)

(e) S²⁻ (charge 2-)

(f) In³⁺ (charge 3+)

Explanation:

To predict the charge on a monoatomic ion we need to consider the octet rule: atoms will gain, lose or share electrons to complete their valence shell with 8 electrons.

(a) |

I has 7 valence electrons so it gains 1 electron to form I⁻ (charge 1-).

(b) Sr

Sr has 2 valence electrons so it loses 2 electrons to form Sr²⁺ (charge 2+).

(c) K

K has 1 valence electron so it loses 1 electron to form K⁺ (charge 1+).

(d) N

N has 5 valence electrons so it gains 3 electrons to form N³⁻ (charge 3-).

(e) S

S has 6 valence electrons so it gains 2 electrons to form S²⁻ (charge 2-).

(f) In

In has 3 valence electrons so it loses 3 electrons to form In³⁺ (charge 3+).

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3 years ago