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2 years ago

How well does particle theory explain the properties of solids liquids and gases?

Chemistry

1 answer:

skad [1K]2 years ago

5 0

Answer:

The kinetic particle theory explains the properties of the different states of matter. The particles in solids, liquids and gases have different amounts of energy. They are arranged differently and move in different ways.

Explanation:

Hope it helps you

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Notice what happens to the numbers of protons, neutrons, and electrons when you

babymother [125]

Answer:

Only the number of neutrons change.

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3 years ago

The pH pH scale for acidity is defined by pH = − log 10 [ H + ] pH=-log10[H+] where [ H + ] [H+]is the concentration of hydrogen

balu736 [363]

Answer:

2 51 × 10^-5mol/L

Explanation:

The concentration of hydrogen ions can be calculated using the formula below :

pH = -log [H+]

pH = 4.6

[H+] = ?

[H+] = Antilog (-4.6)

[H+] = 2 51 × 10^-5mol/L

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3 years ago

Student conducts an experiment to determine the enthalpy of solution for lithium chloride dissolved in water. the student combin

nirvana33 [79]

Answer:- $\Delta H_s_o_l_n=-37.2\frac{kJ}{mol}$

Solution:- First of all we calculate the heat absorbed or released when the solute is added to the solvent. Here the solute is LiCl and the solvent is water.

To calculate the heat absorbed or released we use the formula:

$q=ms\Delta T$

q = heat absorbed or released

m = mass of solution

s = specific heat capacity

and $\Delta T$ = change in temperature

mass of solution = mass of solute + mass of solvent

mass of solution = 5.00 g + 100.0 g = 105.0 g

(note:- density of pure water is 1 g per mL so the mass is same as its volume)

$\Delta T$ = 33.0 - 23.0 = 10.0 degree C

s = $4.18\frac{J}{g.^0C}$

Let's plug in the values in the formula and calculate q.

q = $105.0g(4.18\frac{J}{g.^0C})(10.0^0C)$

q = 4389 J

To calculate the enthalpy of solution that is $\Delta H_s_o_l_n$ we convert q to kJ and divide by the moles of solute.

moles of solute = $5.00g(\frac{1mol}{42.39g})$

= 0.118 moles

q = $4389J(\frac{1kJ}{1000J})$ = 4.389 kJ

$\Delta H_s_o_l_n=\frac{4.389kJ}{0.118mol}$

$\Delta H_s_o_l_n$ = $37.2\frac{kJ}{mol}$

Since the heat is released which is also clear from the rise in temperature of the solution, the sign of enthapy of solution will be negative.

So, $\Delta H_s_o_l_n=-37.2\frac{kJ}{mol}$

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3 years ago

What is possible mass number of a sodium atom, Na?

den301095 [7]

Answer:

The possible mass of the number of sodium is 23amu

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3 years ago

Latin is used for scientific names because

monitta

B. Scientists can communicate more clearly.

Since all the names are the same languages barriers won’t stop scientists from research or collaborations with other scientists around the world.

8 0

3 years ago

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